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      高二英語(yǔ) 短語(yǔ)·典句·考點(diǎn)(Unit 21 HUMAN BIOLOGY) 北師大版選修7[五篇范例]

      時(shí)間:2019-05-12 07:27:07下載本文作者:會(huì)員上傳
      簡(jiǎn)介:寫(xiě)寫(xiě)幫文庫(kù)小編為你整理了多篇相關(guān)的《高二英語(yǔ) 短語(yǔ)·典句·考點(diǎn)(Unit 21 HUMAN BIOLOGY) 北師大版選修7》,但愿對(duì)你工作學(xué)習(xí)有幫助,當(dāng)然你在寫(xiě)寫(xiě)幫文庫(kù)還可以找到更多《高二英語(yǔ) 短語(yǔ)·典句·考點(diǎn)(Unit 21 HUMAN BIOLOGY) 北師大版選修7》。

      第一篇:高二英語(yǔ) 短語(yǔ)·典句·考點(diǎn)(Unit 21 HUMAN BIOLOGY) 北師大版選修7

      高二英語(yǔ) 短語(yǔ)·典句·考點(diǎn)(Unit 21 HUMAN BIOLOGY)北師大版

      選修7 1.in vain 徒然的, 白費(fèi)力氣 經(jīng)典例句

      The police tried in vain to break up the protest crowds.警察企圖驅(qū)散抗議的人群, 但沒(méi)有成功。All our work was in vain.我們所有的工作都白費(fèi)了??键c(diǎn)聚焦 常見(jiàn)短語(yǔ):

      as vain as a peacock像孔雀般地炫耀自己 for vain徒勞地;徒然 活學(xué)活用

      18.The police had searched for the missing driver, and their efforts were ______________.A.in vain B.not in vain C.for vain D.vain 答案:B 2.at random 隨便地,隨意地 經(jīng)典例句

      Don’t throw waster paper at random or you will be punished to be on duty again.不要隨便扔廢紙,否則,你將受罰再值日。

      Don’t answer my question at random, and think it over and then come to my office.不要隨意回答我的問(wèn)題,考慮好后,到我的辦公室。考點(diǎn)聚焦

      1)random n.任意行動(dòng);隨機(jī)過(guò)程,只用于介詞短語(yǔ)at random隨便地,隨意地。如:He took a flower at random, put down $5 and walked out of the shop straight away.他隨手取了一枝花,放下5美元,立刻走出商店。2)random adj.胡亂的;隨便的, 任意的。如:

      He was not listening and made a random answer to the teacher’s question.他沒(méi)聽(tīng)講, 對(duì)教師的問(wèn)題亂答一通。3)短語(yǔ):

      hit out at random 隨意攻擊, 無(wú)的放矢 活學(xué)活用

      19.He opened the book ______________ and started reading.A.in vain B.full of faith C.at once D.at random 答案:D 3.at all costs 不管多大代價(jià),無(wú)論如何

      用心

      愛(ài)心

      專心

      經(jīng)典例句

      The government will save his life at all costs though he is badly ill.盡管他病得很厲害,政府將不惜任何代價(jià)挽救他的生命。At all costs, we must complete the task on time.無(wú)論如何, 我們要準(zhǔn)時(shí)完成任務(wù)??键c(diǎn)聚焦

      1)cost n.成本;代價(jià);犧牲 The cost of living is going up.生活費(fèi)用在提高。

      The cost of the house was too high for me.對(duì)于我來(lái)說(shuō),這房子的價(jià)格太高了。He saved his daughter at the cost of his life.他以犧牲自己的生命挽救了女兒。

      2)at all costs =at any cost不惜任何代價(jià), 無(wú)論如何

      The summer holiday is over, we must get the textbooks for the pupils at all costs.暑假結(jié)束了,我們無(wú)論如何必須為學(xué)生搞到課本。3)辨析:

      at the cost of 以……為代價(jià) at a cost of 以……的價(jià)格

      The hero saved the boy’s life out of the burning library at the cost of his own, which was put up at a cost of one million yuan 10 years ago.英雄犧牲了自己的生命,從燃燒的圖書(shū)館里救出了那男孩,這座圖書(shū)館是在10前花1,000,000建造的。

      活學(xué)活用20.單項(xiàng)填空。

      Chinese government prevented SARS from spreading ______________.A.at a cost B.at the cost C.at all costs D.at cost 答案:C 4.straight away 立刻,馬上 經(jīng)典例句

      When they heard a cry for help, they rushed out of the room straight away.當(dāng)他們聽(tīng)到呼救聲的時(shí)候,他們立刻沖出門(mén)外。

      The policemen ran to the accident spot the moment they received a helping call.警察們一聽(tīng)到呼救電話,立刻跑向事故地點(diǎn)??键c(diǎn)聚焦

      1)同義詞:right away,馬上, promptly立即,quickly馬上 2)相關(guān)短語(yǔ):make straight for 一直向……走去 straight out 坦白地 keep straight 行為正直

      on the straight.筆直,平行

      活學(xué)活用21.We came ______________ after we got your telephone.A.directly

      用心

      愛(ài)心

      專心 B.instantly C.the moment D.straight away 答案:D 5.wipe out 徹底毀滅 經(jīng)典例句

      They have wiped out the enemy’s major military targets.他們已徹底摧毀了敵人的主要軍事目標(biāo)??键c(diǎn)聚焦

      1)wipe out 徹底毀滅。如:

      The storm wiped the building out only in two hours.在兩個(gè)小時(shí)之內(nèi),暴風(fēng)雨把建筑物毀壞了。

      2)wipe常與away, off連用,意為“擦干;揩凈”。Wipe your tears away,believe yourself and try again.擦干你的眼淚, 相信自己,再試一次。3)記住短語(yǔ):

      wipe down把……擦干凈 wipe off 勾銷債務(wù)

      wipe up揩干(洗凈的碟盤(pán))wipe out a mark拭除去污點(diǎn)

      Pour water into a sieve.竹籃打水一場(chǎng)空?;顚W(xué)活用

      22.Everything needs to be got prepared before the typhoon to avoid ______________.A.wiping out B.being wiped out C.to wipe out D.to be wiped out 答案:B 6.stop sth.in its tracks 終止;消滅 經(jīng)典例句

      This famous sportsman’s career was stopped in its tracks because of his doping drugs.那位著名的體育運(yùn)動(dòng)員,因?yàn)闉E用藥品,被終止運(yùn)動(dòng)生涯??键c(diǎn)聚焦

      以stop為中心的其他短語(yǔ): make a stop停止, 休息, 停留

      pull out all the stops 全力以赴;千方百計(jì) put a stop to使……停止, 使……終止 stop from阻止

      stop in順便訪問(wèn)某人;待在家里 stop off中途停留

      stop up醒著, 沒(méi)有睡;熬夜;塞住 活學(xué)活用23.改錯(cuò)。

      If the paper factories go on putting the waster water into the river, the fish will be stop in their tracks.用心

      愛(ài)心

      專心 答案:stop →stopped

      7.at any rate 無(wú)論如何;至少 經(jīng)典例句

      At any rate, the medicine and food will reach the farmers before the snowstorm.無(wú)論如何, 藥品和食物將于暴風(fēng)雪前到達(dá)農(nóng)民手里。

      You ought to read one of the English articles every day at any rate.你至少每天讀一篇英語(yǔ)文章。考點(diǎn)聚焦

      1)rate費(fèi)用, 價(jià)格。如:

      The room rates at this motel range from $30 to $50 per day.這個(gè)汽車(chē)旅館的房?jī)r(jià)每天三十美元到五十美元不等。2)at this rate照這種樣子

      活學(xué)活用24.As a Party member, Mr.Li preferred to help the workers out of jobs find new ones______________.A.at home B.at any rate C.at a word D.at a time 答案:B

      用心

      愛(ài)心

      專心 4

      第二篇:英語(yǔ)四級(jí)作文常用句常用短語(yǔ)

      英語(yǔ)四級(jí)常用句

      《一》段首句

      1.關(guān)于……人們有不同的觀點(diǎn)。一些人認(rèn)為……

      There are different opinions among people as to ____.Some people suggest that ____.2.俗話說(shuō)(常言道)……,它是我們前輩的經(jīng)歷,但是,即使在今天,它在許多場(chǎng)合仍然適用。

      There is an old saying______.It“s the experience of our forefathers,however,it is correct in many cases even today.3.現(xiàn)在,……,它們給我們的日常生活帶來(lái)了許多危害。首先,……;其次,……。更為糟糕的是……。

      Today, ____, which have brought a lot of harms in our daily life.First, ____ Second,____.What makes things worse is that______.4.現(xiàn)在,……很普遍,許多人喜歡……,因?yàn)椤?,另外(而且)……?/p>

      Nowadays,it is common to ______.Many people like ______ because ______.Besides,______.5.任何事物都是有兩面性,……也不例外。它既有有利的一面,也有不利的一面。Everything has two sides and ______ is not an exception,it has both advantages and disadvantages.6.關(guān)于……人們的觀點(diǎn)各不相同,一些人認(rèn)為(說(shuō))……,在他們看來(lái),……

      People’s opinions about ______ vary from person to person.Some people say that ______.To them,_____.7.人類正面臨著一個(gè)嚴(yán)重的問(wèn)題……,這個(gè)問(wèn)題變得越來(lái)越嚴(yán)重。

      Man is now facing a big problem ______ which is becoming more and more serious.8.……已成為人的關(guān)注的熱門(mén)話題,特別是在年青人當(dāng)中,將引發(fā)激烈的辯論。

      ______ has become a hot topic among people,especially among the young and heated debates are right on their way.9.……在我們的日常生活中起著越來(lái)越重要的作用,它給我們帶來(lái)了許多好處,但同時(shí)也引發(fā)一些嚴(yán)重的問(wèn)題。

      ______ has been playing an increasingly important role in our day-to-day life.it has brought us a lot of benefits but has created some serious problems as well.10.根據(jù)圖表/數(shù)字/統(tǒng)計(jì)數(shù)字/表格中的百分比/圖表/條形圖/成形圖可以看出……。很顯然……,但是為什么呢?

      According to the figure/number/statistics/percentages in the /chart/bar graph/line/graph,it can be seen that______ while.Obviously,______,but why?

      (二)中間段落句

      1.相反,有一些人贊成……,他們相信……,而且,他們認(rèn)為……。

      On the contrary,there are some people in favor of ___.At the same time,they say____.2.但是,我認(rèn)為這不是解決……的好方法,比如……。最糟糕的是……。

      But I don’t think it is a very good way to solve ____.For example,____.Worst of all,___.3.……對(duì)我們國(guó)家的發(fā)展和建設(shè)是必不可少的,(也是)非常重要的。首先,……。而且……,最重要的是……

      ______is necessary and important to our country’s development and construction.First,______.What’s more, _____.Most important of all,______.4.有幾個(gè)可供我們采納的方法。首先,我們可以……。

      There are several measures for us to adopt.First, we can______

      5.面臨……,我們應(yīng)該采取一系列行之有效的方法來(lái)……。一方面……,另一方面,Confronted with______,we should take a series of effective measures to______.For one thing,______For another,______

      6.早就應(yīng)該拿出行動(dòng)了。比如說(shuō)……,另外……。所有這些方法肯定會(huì)……。

      It is high time that something was done about it.For example._____.In addition._____.All these measures will certainly______.7.為什么……?第一個(gè)原因是……;第二個(gè)原因是……;第三個(gè)原因是……??偟膩?lái)說(shuō),……的主要原因是由于……

      Why______? The first reason is that ______.The second reason is ______.The third is ______.For all this, the main cause of ______due to ______.8.然而,正如任何事物都有好壞兩個(gè)方面一樣,……也有它的不利的一面,象……。However, just like everything has both its good and bad sides, ______also has its own disadvantages, such as ______.9.盡管如此,我相信……更有利。

      Nonetheless, I believe that ______is more advantageous.10.完全同意……這種觀點(diǎn)(陳述),主要理由如下:

      I fully agree with the statement that ______ because______.(三)結(jié)尾句

      1.至于我,在某種程度上我同意后面的觀點(diǎn),我認(rèn)為……

      As far as I am concerned, I agree with the latter opinion to some extent.I think that ____.2.總而言之,整個(gè)社會(huì)應(yīng)該密切關(guān)注……這個(gè)問(wèn)題。只有這樣,我們才能在將來(lái)……。In a word, the whole society should pay close attention to the problem of ______.Only in this way can ______in the future.3.但是,……和……都有它們各自的優(yōu)勢(shì)(好處)。例如,……,而……。然而,把這兩者相比較,我更傾向于(喜歡)……

      But ______and ______have their own advantages.For example, _____, while_____.Comparing this with that, however, I prefer to______.4.就我個(gè)人而言,我相信……,因此,我堅(jiān)信美好的未來(lái)正等著我們。因?yàn)椤璓ersonally, I believe that_____.Consequently, I’m confident that a bright future is awaiting us because______.5.隨著社會(huì)的發(fā)展,……。因此,迫切需要……。如果每個(gè)人都愿為社會(huì)貢獻(xiàn)自已的一份力量,這個(gè)社會(huì)將要變得越來(lái)越好。

      With the development of society, ______.So it”s urgent and necessary to ____.If every member is willing to contribute himself to the society, it will be better and better.6.至于我(對(duì)我來(lái)說(shuō),就我而言),我認(rèn)為……更合理。只有這樣,我們才能……For my part, I think it reasonable to_____.Only in this way can you _____.7.對(duì)我來(lái)說(shuō),我認(rèn)為有必要……。原因如下:第一,……; 第二,……;最后……但同樣重要的是……

      In my opinion, I think it necessary to____.The reasons are as follows.First _____.Second ______.Last but not least,______.8.在總體上很難說(shuō)……是好還是壞,因?yàn)樗诤艽蟪潭壬先Q于……的形勢(shì)。然而,就我個(gè)人而言,我發(fā)現(xiàn)……。

      It is difficult to say whether _____is good or not in general as it depends very much on the situation of______.However, from a personal point of view find______.9.綜上所述,我們可以清楚地得出結(jié)論……

      From what has been discussed above, we may reasonably arrive at the conclusion that____.10.如果我們不采取有效的方法,就可能控制不了這種趨勢(shì),就會(huì)出現(xiàn)一些意想不到的不良后果,所以,我們應(yīng)該做的是……

      If we can not take useful means, we may not control this trend, and some undesirable result may come out unexpectedly, so what we should do is_____.英語(yǔ)四級(jí)高頻詞組條

      1.abide by(=be faithful to;obey)忠于;遵守。2.be absent from….缺席,不在3.absence or mind(=being absent-minded)心不在焉

      4.absorb(=take up the attention of)吸引…的注意力(被動(dòng)語(yǔ)態(tài))be absorbed in 全神貫注于…近be engrossed in;be lost in;be rapt in;be concentrated on;be focused on;be centered on

      5.(be)abundant in(be rich in;be well supplied with)富于,富有6.access(to)(不可數(shù)名詞)能接近,進(jìn)入,了解7.by accident(=by chance, accidentally)偶然地,意外.Without accident(=safely)安全地,8.of ones own accord(=without being asked;willingly;freely)自愿地 ,主 動(dòng)地9.in accord with 與…一致.out of ones accord with 同….不一致10.with one accord(=with everybody agreeing)一致地11.in accordance with(=in agreement with)依照,根據(jù)12.on ones own account1)為了某人的緣故, 為了某人自己的利益2)(=at ones own risk)自行負(fù)責(zé)3)(=by oneself)依靠自己on account 賒賬;on account of 因?yàn)?on no account不論什么原因也不;of …account 有…..重要性.13.take…into account(=consider)把...考慮進(jìn)去14.give sb.an account of 說(shuō)明, 解釋(理由)15.account for(=give an explanation or reason for)解釋, 說(shuō)明.16.on account of(=because of)由于,因?yàn)?17.on no account(=in no case, for no reason)絕不要,無(wú)論如何不要(放句首時(shí)句 子要倒裝)18.accuse…of…(=charge…with;blame sb.for sth.;blame sth.on sb.;complain about)指控,控告

      19.be accustomed to(=be in the habit of, be used to)習(xí)慣于.20.be acquainted with(=to have knowledge of)了解;(=to have met socially)熟悉21.act on 奉行,按照…行動(dòng);act as 扮演;act for 代理22.adapt oneself to(=adjust oneself to)使自己適應(yīng)于23.adapt…(for)(=make sth.Suitable for a new need)改編, 改寫(xiě)(以適應(yīng)新的需要)24.in addition(=besides)此外, 又, 加之25.in addition to(=as well as, besides, other than)除…外26.adhere to(=abide by, conform to, comply with, cling to, insist on, persist in, observe, opinion, belief)粘附;堅(jiān)持, 遵循27.adjacent(=next to, close to)毗鄰的, 臨近的28.adjust..(to)(=change slightly)調(diào)節(jié);適應(yīng);29.admit of(=be capable of, leave room for)…的可能,留有…的余地.30.in advance(before in time)預(yù)告, 事先.31.to advantage 有利的,使優(yōu)點(diǎn)更加突出地.32.have an advantage over 勝過(guò).have the advantage of 由于…處于有利條件have the advantage of sb.知道某人所不知道的事33.take advantage of(=make the best of, utilize, make use of, profit from, harness)利用.34.agree with 贊同(某人意見(jiàn))agree to 同意35.in agreement(with)同意, 一致36.ahead of 在…之前, 超過(guò)…………….ahead of time 提前.37.in the air 1)不肯定, 不具體.2)在謠傳中.38.above all(=especially, most important of all)尤其是, 最重要的.39.in all(=counting everyone or everything, altogether)總共, 總計(jì)40.after all 畢竟,到底;(not)at all 一點(diǎn)也不;all at once(=suddenly)突然;once and for all 只此一次;above all 最重要的;first of all 首先;all in all 大體上說(shuō);be all in 累極了;all

      but 幾乎.41.allow for(=take into consideration, take into account)考慮到, 估計(jì)到.42.amount to(=to be equal to)總計(jì), 等于.43.answer for(undertake responsibility for, be liable for, take charge for)對(duì)…負(fù)責(zé).44.answer to(=conform to)適合,符合.45.be anxious about 為…焦急不安;或anxious for 46.apologize to sb.for sth.為…向…道歉47.appeal to sb.for sth.為某事向某人呼吁.appeal to sb.對(duì)某人有吸引力48.apply to sb.for sth.為…向…申請(qǐng);apply for申請(qǐng);apply to 適用.49.apply to 與…有關(guān);適用50.approve of(=consent to, be in favor of, favor, agree to, consider good, right)贊成, approve vt.批準(zhǔn)51.arise from(=be caused by)由…引起.52.arrange for sb.sth.to do sth.安排…做…53.arrive on 到達(dá);arrive at 到達(dá)某地(小地方);得出,作出;arrive in 到達(dá)某地(大地方);54.be ashamed of(=feel shame, guilt or sorrow because of sth.done)以…為羞恥

      55.assure sb.of sth.(=try to cause to believe or trust in sth.)向…保證, 使…確信.56.attach(to)(=to fix, fasten;join)縛, 系 ,結(jié)57.make an attempt at doing sth.(to do sth.)試圖做…58.attend to(=give ones attention, care and thought)注意,照顧;attend on(upon)(=wait upon, serve, look after)侍候,照料59.attitude to toward …對(duì)…的態(tài)度.看法60.attribute…to…(=to believe sth.to be the result of…)把..歸因于.., 認(rèn)為..是..的結(jié)果61.on the average(=on average, on an average)平均62.(be)aware of(=be conscious of , having knowledge or consciousness)意識(shí)到,知道.63.at the back of(=behind)在…后面64.in the back of 在…后部(里面);on the back of 在…后部(外面);be on ones back(=be ill in bed)臥病不起.65.at ones back(=supporting or favoring sb.)支持,維護(hù);have sb.at one ’s back 有…支持, 有…作后臺(tái)66.turn one’s back on sb.(=turn away from sb.in an impolite way)不理睬(某人),背棄,拋棄67.behind one’s back 背著某人(說(shuō)壞話)68.be based onupon 基于69.on the basis of 根據(jù)…, 在…基礎(chǔ)上70.beat…at 在…運(yùn)動(dòng)項(xiàng)目上打贏71.begin with 以…開(kāi)始.to begin with(=first of all)首先, 第一(經(jīng)常用于開(kāi)始語(yǔ))72.on behalf of(=as the representative of)以…名義73.believe in(=have faith or trust in;consider sth.sb.to be true)相信,依賴,信仰.74.benefit(from)受益,得到好處.75.for the benefit of 為了…的利益(好處)76.for the better 好轉(zhuǎn)77.get the better of(=defeat sb.)打敗, 勝過(guò).78.by birth 在出生上,論出身,按血統(tǒng) at birth 在出生時(shí);give birth to 出生79.blame sb.for sth.因…責(zé)備某人.blame sth.on sb.把…推在某人身上80.in blossom開(kāi)花(指樹(shù)木)be in blossom開(kāi)花(強(qiáng)調(diào)狀態(tài))come into blossom開(kāi)花(強(qiáng)調(diào)動(dòng)作)81.on board 到船上, 在船上, 上火車(chē)或飛機(jī)82.boast of(or about)吹噓83.out of breath 喘不過(guò)氣來(lái)84.in brief(=in as few words as possible)簡(jiǎn)言之85.in bulk 成批地,不散裝的86.take the floor 起立發(fā)言87.on business 出差辦事.88.be busy with sth.于某事。be busy doing sth.忙于做某事89.last but one 倒數(shù)第二.90.but for(=without)要不是.表示假設(shè)91.buy sth.for…money 用多少錢(qián)買(mǎi)92.be capable of 能夠, 有能力be capable of being +過(guò)去分詞是能夠被…的93.in any case(=for love or money, at any rate, at any price, at any cost, whatever happens;anyhow)無(wú)論如何94.in case(=for fear that)萬(wàn)一;95.in case of(=in the event of)如果發(fā)生…萬(wàn)一in the case of 至于…, 就…而言96.in no case在任何情況下都不(放句首倒裝句)97.be cautious of 謹(jǐn)防98.center ones attention on(=focus one’s attention on)把某人的注意力集中在…上99.be certain of(=be sure of)有把握, 一定.100.for certain of(=for sure)肯定地,有把握地101.by chance(=accidentally, by accident)偶然102.for a change換換環(huán)境(花樣等)103.charge sb.with …控告某人犯有…104.in charge of(=responsible for)負(fù)責(zé)(某事)in the charge of …由…管105.take charge of(=to be or become responsible for)負(fù)責(zé)管理(照顧)106.charge…for 因…索取(費(fèi)用), charge sb.with sth.控告某人犯有…107.round the clock(=all day and all night, usually without

      stopping)晝夜不停地108.comment on 評(píng)論109.commit oneself to 使自己承擔(dān)… commit sb.to prison把某人送進(jìn)監(jiān)獄;commit ones idea to writing 把某人的想法寫(xiě)下來(lái);commit a matter to a committee把某事交給委員會(huì)討論110.in common(和…)有共同之處,共用.be common to sb.是與某人所共有的111.keep company with(=be friendly and go out together)和…要好.112.compare…with … 把…與…比較113.compare…to… 把…比作…114.by comparison 比較起來(lái)115.in comparison with(=in contrast to)和…比起來(lái)116.compensate for(=give sth.to make up for)補(bǔ)償, 賠償,彌補(bǔ) compensatesb.for sth.賠償,彌補(bǔ)117.complain of(or about)抱怨;訴苦;控告;complain about 抱怨某人或事情;complain to sb.about sth.(or sb.)向某人抱怨…;complain(抱怨);complement(補(bǔ)充);compliment(恭維)118.comply with(=act in accordance with a demand, order, rule etc.)遵守, 依從119.conceive of(think of, imagine, consider)想象,設(shè)想120.concentrate on(or upon)集中,專心121.be concerned with(=about)與…有關(guān)122.concern oneself aboutwith 關(guān)心123.in conclusion(=as the last thing)最后一點(diǎn);at the conclusion of 當(dāng)…結(jié)束時(shí);124.condemn sb.to 判決125.on condition that(=if)以…為條件, 假如.in that = because因?yàn)?now that = since既然for all that = although 盡管126.inout of condition(=thoroughly healthy or fitnot fit)健康狀況好不好.in good(bad)condition處于良好(壞)狀態(tài)127.confess(to)(=admit a fault, crime, or sth.wrong)承認(rèn), 供認(rèn);confess to a crime 承認(rèn)罪行.128.confide in(=to talk freely to sb.about one’s secret)對(duì)…講真心話, 依賴129.in confidence 推心置腹地;with confidence 滿懷信心地;have confidence in 對(duì)…有信心130.confidence in sb.sth.對(duì)…的信賴131.be confident of 有信心;confidential 機(jī)密的132.confine…to… 把…限制在某范圍內(nèi)133.confirm sb.in 使某人更堅(jiān)定(信念等)134.conform to(=be in agreement with, comply with)符合,遵照,遵守;1)obey 服從;2)observe;

      3)comply with 照…辦;4)keep to遵循;5)abide by服從;6)stick to按..做135.be confronted with(=be brought face to face with)面對(duì), 面臨136.congratulate sb.on 祝賀137.in connection with(=with regard to)關(guān)于,138.be conscious of(=be aware of)覺(jué)察,知道139.consent to(=give agreement to permission)同意140.in consequence(=as a result)結(jié)果141.in consequence of(=as a consequence of)由于…的結(jié)果

      第三篇:高二英語(yǔ)選修7專題

      高二英語(yǔ)選修7

      Module 4MusicBorninAmerica

      ReadingandWriting

      教學(xué)設(shè)計(jì)說(shuō)課稿

      I.教學(xué)內(nèi)容分析

      本模塊以Music Born in America為話題,介紹了美國(guó)的本土音樂(lè),這節(jié)課是本模塊的閱讀與寫(xiě)作訓(xùn)練課Reading and Writing。第一部分通過(guò)閱讀文章,回答三個(gè)開(kāi)放性的問(wèn)題,使學(xué)生開(kāi)始思考音樂(lè)與學(xué)習(xí)的關(guān)系,為后面的寫(xiě)作做好了鋪墊。第二部分要求學(xué)生根據(jù)所提供的問(wèn)題,寫(xiě)一篇關(guān)于學(xué)習(xí)習(xí)慣的文章。

      II.教學(xué)目標(biāo)

      依據(jù)高中英語(yǔ)新課標(biāo)制定如下目標(biāo)

      知識(shí)目標(biāo):掌握一些與音樂(lè)相關(guān)的詞匯和句型。

      技能目標(biāo):發(fā)展學(xué)生讀寫(xiě)的能力,根據(jù)對(duì)短文的閱讀理解,能夠熟練的運(yùn)用本模塊學(xué)的語(yǔ)法結(jié)構(gòu)和詞匯表達(dá)自己的意思;能夠?qū)懗鲎约簩?duì)音樂(lè)的某種看法。

      文化意識(shí)與情感目標(biāo):了解音樂(lè)在人們生活中的影響,學(xué)會(huì)客觀、辯

      證地看問(wèn)題。

      III.學(xué)習(xí)方法:合作學(xué)習(xí)法 任務(wù)型教學(xué)要求學(xué)生在完成任務(wù)的過(guò)程

      中小組之間密切配合,因此合作在這里是必不可少的。

      IV.教學(xué)重點(diǎn)和難點(diǎn)

      1.教學(xué)重點(diǎn)

      掌握一些與音樂(lè)相關(guān)的詞匯和句型。

      2.教學(xué)難點(diǎn)

      學(xué)會(huì)描寫(xiě)自己的學(xué)習(xí)習(xí)慣,并能寫(xiě)出自己對(duì)某種音樂(lè)的看法。V.學(xué)情分析

      邦均中學(xué)的學(xué)生英語(yǔ)底子薄弱,知識(shí)和能力亟待提高,所以我們的英語(yǔ)教學(xué)目標(biāo)首先是定位于讓學(xué)生記住生詞、短語(yǔ)、句型,然后在閱讀的過(guò)程中分析和理解,并嘗試用英文寫(xiě)作。對(duì)于大部分學(xué)生來(lái)說(shuō),英語(yǔ)還是相當(dāng)難的一個(gè)學(xué)科,所以在教學(xué)過(guò)程中,激發(fā)學(xué)生的興趣極其重要,所以在課堂設(shè)計(jì)時(shí)我注意提高課堂的趣味性、實(shí)用性。VI.教學(xué)方法

      “授之以魚(yú),不如授之以漁?!?As an English teacher, our task is not to teacher students English but to teach students how to learn English.學(xué)生是學(xué)習(xí)的主人,They are learning English not from teachers but with teachers.在教學(xué)中,我采用新課標(biāo)中的任務(wù)型教學(xué)法,教會(huì)學(xué)生閱讀和寫(xiě)作的方法;在教師指導(dǎo)及學(xué)案引領(lǐng)下,以學(xué)生自主閱讀、自主發(fā)展為主線;讓學(xué)生在教師引領(lǐng)、同學(xué)互助下品位語(yǔ)言之美,養(yǎng)成良好的學(xué)習(xí)策略。

      VII.教學(xué)過(guò)程

      1.Lead-in

      愛(ài)因斯坦有句名言:“興趣是最好的老師?!闭軐W(xué)上講內(nèi)因是根本,外因要通過(guò)內(nèi)因才能起作用。所以說(shuō),要讓學(xué)生學(xué)好英語(yǔ),首先就要讓他們愛(ài)上英語(yǔ)。興趣對(duì)學(xué)習(xí)有著神奇的內(nèi)驅(qū)動(dòng)作用,能變無(wú)效為有效,化低效為高效。在這里首先給學(xué)生展示兩組圖片,師生互動(dòng),討論問(wèn)題What kinds of music do you know? Show us some examples!引起他們的頭腦風(fēng)暴,聯(lián)想與音樂(lè)有關(guān)的知識(shí),引出classical music.教師繼續(xù)激發(fā)學(xué)生的興趣,播放一曲音樂(lè),讓學(xué)生們真實(shí)感受到音樂(lè)的感染力,通過(guò)問(wèn)題How do you feel after you hear the music? 讓學(xué)生嘗試說(shuō)出自己的看法,引出話題Do you think classical music helps you study?進(jìn)入到52頁(yè)課文的閱讀,讓學(xué)生自己去發(fā)掘文章作者的觀點(diǎn)。

      2.Fast reading

      通過(guò)閱讀文章,回答三個(gè)開(kāi)放性的問(wèn)題,訓(xùn)練了學(xué)生快速閱讀和在有限時(shí)間內(nèi)搜索信息的能力。這一部分的題目很簡(jiǎn)單,學(xué)生有話可說(shuō),也增強(qiáng)了他們的自信心,并使學(xué)生開(kāi)始思考音樂(lè)與學(xué)習(xí)的關(guān)系,為后面的寫(xiě)作做好了鋪墊。

      3.Discussing

      這一部分提供了七個(gè)討論題,與上面的閱讀密切相關(guān),圍繞著音樂(lè)對(duì)學(xué)習(xí)的影響而設(shè)計(jì)的。再次環(huán)節(jié)中,學(xué)生們通過(guò)小組討論的形式,互相交流看法,積極探討,積累了大量的寫(xiě)作信息,包括單詞、短語(yǔ)、句型和常用句型。學(xué)生們?cè)诤献鲗W(xué)習(xí)中,既發(fā)揮了好學(xué)生的英語(yǔ)基礎(chǔ)好的長(zhǎng)處,又為那些作文無(wú)話可寫(xiě)的同學(xué)掃清了障礙。有人展示有人收獲,各得其所,形成了愉快的學(xué)習(xí)氣氛。

      4.Collection

      這一部分將學(xué)生們討論的成果進(jìn)行了展示,使同學(xué)們體驗(yàn)了成功的樂(lè)趣。與此同時(shí),教師對(duì)收集上來(lái)的信息進(jìn)行點(diǎn)評(píng)和補(bǔ)充。并針對(duì)學(xué)生習(xí)作文章結(jié)構(gòu)不明確缺乏層次感的弱項(xiàng)加以解釋說(shuō)明,使學(xué)生更明確了好作文的要求,從而提高寫(xiě)作質(zhì)量。

      5.writing

      通過(guò)以上的活動(dòng),學(xué)生們頭腦中已經(jīng)輸入了相關(guān)的寫(xiě)作信息,此部分正是鍛煉他們將信息輸出的能力,即用英語(yǔ)正確表達(dá)自己的觀點(diǎn)。

      6.成果展示

      將學(xué)生的習(xí)作抽樣當(dāng)堂點(diǎn)評(píng),讓每一位學(xué)生都體驗(yàn)一次批作文的樂(lè)趣,區(qū)分好壞,取長(zhǎng)補(bǔ)短。讓學(xué)生在批評(píng)與自我批評(píng)中學(xué)會(huì)正確面對(duì)學(xué)習(xí)中的成功與失敗,培養(yǎng)他們堅(jiān)持不懈的品質(zhì)。

      之后,教師進(jìn)行指導(dǎo)與說(shuō)明,并提供兩篇正反兩種觀點(diǎn)的范文供學(xué)生學(xué)習(xí)參考,并提出改進(jìn)與提高寫(xiě)作的建議,引導(dǎo)學(xué)生課下自主學(xué)習(xí),以達(dá)到“授之以漁”的目的。

      7.homework

      以兩組圖片來(lái)引起學(xué)生的興趣,讓他們?cè)谂d趣的驅(qū)使下運(yùn)用合作學(xué)習(xí)法自主完成閱讀與寫(xiě)作的教學(xué)任務(wù)。結(jié)合本節(jié)課的訓(xùn)練內(nèi)容,利用課本中提供的Reading Practice一篇介紹香港本土音樂(lè)的說(shuō)明文,要求學(xué)生通過(guò)閱讀文章,學(xué)會(huì)概括段落大意,并回答幾個(gè)與文章細(xì)節(jié)有關(guān)的問(wèn)題,培養(yǎng)學(xué)生對(duì)文章理解的能力。學(xué)習(xí)并提取其中的寫(xiě)作素材,用英語(yǔ)介紹一位自己喜歡的歌手,進(jìn)一步鍛煉學(xué)生在閱讀中輸入在寫(xiě)作中輸出的能力從而達(dá)到我們的教學(xué)目的。

      第四篇:高二英語(yǔ)短語(yǔ)部分總結(jié)

      1.have ……in common with sb in sth 與某人在某方面有共同之處

      2.make a difference to sb 對(duì)某人來(lái)說(shuō)有影響

      3.insist on 堅(jiān)持

      4.pick up① 拾起②偶然學(xué)會(huì)③(健康,經(jīng)濟(jì)等)回復(fù)④用車(chē)接⑤便宜的買(mǎi)到⑥接收

      5.suggest&advise

      6.adapt&adopt

      7.a couple of

      8.fight against&fight with與……戰(zhàn)斗/與……并肩作戰(zhàn)

      9.have difficulty/problems/trouble/a hard time doing 做……有困難

      10.in favour of& in support of支持

      11.refer to……as=think of……as=look upon/on……as=see/treat/regard/consider as

      12.combine A with B 把A和B結(jié)合13.make/find/feel/think/consider+it+adj/n+to do

      14.after all,above all,in all,all in all,at all,first of all

      15.need/want/require to be done=need/want/require doing

      16.make a fuss of對(duì)……過(guò)分關(guān)注

      17.take it for granted that……認(rèn)為……理所當(dāng)然

      18.with+O+O.C(doing/done/to do/adj/adv/perp)

      19.pay back ;pay off 歸還/還清

      20.take up ①拿起 ② 對(duì)……有興趣③開(kāi)始 ④占……時(shí)間

      21.meet one`s demand for 滿足某人對(duì)……的要求

      22.well/badly paid 報(bào)酬好/報(bào)酬不好

      23.have a profound effect on…… 對(duì)……有重大影響

      24.suffer a defeat/loss/the consequences 遭遇失敗/損失 自食其果

      25.account for 是……的原因;占……比例

      26.have a knowledge of 精通…… have a command of對(duì)……運(yùn)用自如

      27.be likely to do 很有可能干

      28.It`s essential/natural/important/necessary/strange that sb(should)do

      29.take(no)notice of 注意到/沒(méi)有注意到

      30.in response to =respond to= react to= reply to 對(duì)……作出反應(yīng)

      31.have an encounter with 邂逅;和……相遇

      32.on no account 絕不 on account of…由于,因?yàn)?take……into account 考慮到

      33.run out(vi)/run out of(vt)用完;run into=run across 偶然遇見(jiàn);run out 追趕,追求

      34.die of/from(內(nèi)因,外因)

      35.point at/to(近處,遠(yuǎn)處)

      36.out of breath=lose one`s breath上氣不接下氣

      37.set off for sp 動(dòng)身去某地

      38.make up ①編造②化妝③彌補(bǔ),補(bǔ)上④和解⑤占比例⑥組成⑦整理

      39.be/feel in the mood for sth/to do sth 有做……的心情

      40.be in a good/bad mood=be in high/low spirits 情緒高漲/情緒低落

      41.be accompanied by 被……陪伴著 accompany sb to sp 陪某人去某地

      42.establish one`s reputation建立某人的名聲

      43.out of 出于……out of curiosity/kindness 出于好奇/善良

      44.be simila to sb in sth= resemble sb in 與某人在某方面相似

      第五篇:高二精選題庫(kù) 生物選修1-5北師大版

      選修一

      專題5

      1.紅細(xì)胞含有大量的血紅蛋白,紅細(xì)胞的機(jī)能主要是由血紅蛋白完成,血紅蛋白的主要功能是攜帶氧氣或二氧化碳,我們可以選用豬、牛、羊或其他脊椎動(dòng)物的血液進(jìn)行實(shí)驗(yàn),來(lái)提取和分離血紅蛋白,請(qǐng)回答下列有關(guān)問(wèn)題:

      (1)實(shí)驗(yàn)前取新鮮的血液,要切記在采血器中預(yù)先加入檸檬酸鈉,取血回來(lái)馬上進(jìn)行離心,收集血紅蛋白溶液。

      ①加入檸檬酸鈉的目的是

      ________________________________________________________________________。②以上所述的過(guò)程即是樣品處理,它包括

      ________________________________________________________________________ ________________________________________________________________________、收集血紅蛋白溶液。

      (2)收集的血紅蛋白溶液在透析袋中透析,這就是樣品的粗分離。①透析的目的是

      ________________________________________________________________________。②透析的原理是

      ________________________________________________________________________。(3)然后通過(guò)________法將樣品進(jìn)一步純化,最后經(jīng)SDS-聚丙烯酰胺凝膠電泳進(jìn)行純度鑒定。

      ①樣品純化的目的是

      ________________________________________________________________________。②血紅蛋白有什么特點(diǎn)?

      ________________________________________________________________________,這 一特點(diǎn)對(duì)進(jìn)行蛋白質(zhì)的分離有什么意義?

      ________________________________________________________________________ ________________________________________________________________________。解析:蛋白質(zhì)的提取和分離一般分為四步:樣品處理、粗分離、純化、純度鑒定。樣品處理包括紅細(xì)胞的洗滌、血紅蛋白的釋放和分離血紅蛋白溶液;通過(guò)透析對(duì)血紅蛋白溶液進(jìn)行粗分離,透析的原理是透析袋能使小分子自由進(jìn)出而大分子則保留在袋內(nèi),從而除去分子量較小的雜質(zhì);然后通過(guò)凝膠色譜法將相對(duì)分子質(zhì)量大的雜質(zhì)蛋白除去,從而對(duì)樣品進(jìn)一步純化,最后SDS-聚丙烯酰胺凝膠電泳進(jìn)行純度鑒定。

      答案:(1)①防止血液凝固 ②紅細(xì)胞的洗滌、血紅蛋白的釋放

      (2)①去除分子質(zhì)量較小的雜質(zhì) ②透析袋能使小分子自由進(jìn)出,而大分子則保留在袋內(nèi)

      (3)凝膠色譜 ①通過(guò)凝膠色譜法將相對(duì)分子質(zhì)量大的雜質(zhì)蛋白除去 ②血紅蛋白呈現(xiàn)紅色 在凝膠色譜分離時(shí),可以通過(guò)觀察顏色來(lái)判斷什么時(shí)候應(yīng)該收集洗脫液,這使血紅蛋白的分離過(guò)程非常直觀,大大簡(jiǎn)化了實(shí)驗(yàn)操作。

      2.凝膠色譜技術(shù)是六十年代初發(fā)展起來(lái)的一種快速而又簡(jiǎn)單的分離技術(shù),由于設(shè)備簡(jiǎn)單、操作方便,不需要有機(jī)溶劑,對(duì)高分子物質(zhì)有很高的分離效果,目前已經(jīng)被生物化學(xué)、分子生物學(xué)、生物工程學(xué)、分子免疫學(xué)以及醫(yī)學(xué)等有關(guān)領(lǐng)域廣泛應(yīng)用,不但應(yīng)用于科學(xué)實(shí)驗(yàn)研究,而且已經(jīng)大規(guī)模地用于工業(yè)生產(chǎn)。據(jù)圖回答問(wèn)題:

      (1)a、b均為蛋白質(zhì)分子,其中先從層析柱中洗脫出來(lái)的是________,原因是

      ________________________________________________。

      (2)自己制作凝膠色譜柱時(shí),在色譜柱底部d位置相當(dāng)于多孔板的結(jié)構(gòu)可由________替代。

      (3)裝填凝膠色譜柱時(shí),色譜柱內(nèi)不能有氣泡存在,原因是 ____________________________________。(4)若選用SephadexG-100,則“G”表示

      ________________________________________________________________________ ________,100表示________。

      (5)洗脫用的液體應(yīng)盡量與浸泡凝膠所用的液體________(填“相同”或“不同”),洗脫時(shí),對(duì)洗脫液的流速要求是____________________。

      解析:(1)用凝膠色譜法分離各種大分子物質(zhì)時(shí),大分子物質(zhì)先洗脫出來(lái),然后是小分子物質(zhì)。大分子物質(zhì)由于直徑較大,不易進(jìn)入凝膠顆粒的微孔,而只能分布于顆粒之間,所以向下移動(dòng)的速度較快。小分子物質(zhì)除了可在凝膠顆粒間隙中擴(kuò)散外,還可以進(jìn)入凝膠顆粒的微孔中,即進(jìn)入另一凝膠顆粒,在向下移動(dòng)的過(guò)程中,從一個(gè)凝膠內(nèi)擴(kuò)散到顆粒間隙后再進(jìn)入另一凝膠顆粒,如此不斷地進(jìn)入和擴(kuò)散,小分子物質(zhì)的下移速度落后于大分子物質(zhì),從而落后于大分子物質(zhì)洗脫出來(lái)。(2)在色譜柱中填凝膠的時(shí)候要盡量緊密,以降低凝膠顆粒之間的空隙。一是在裝填凝膠柱時(shí),不得有氣泡存在,因?yàn)闅馀輹?huì)攪亂洗脫液中蛋白質(zhì)的洗脫次序,降低分離效果;二是凝膠色譜操作過(guò)程中,不能發(fā)生洗脫液流干,露出凝膠顆粒的現(xiàn)象。一旦發(fā)生上述兩種情況,凝膠色譜柱需要重新裝填。

      答案:(1)a a相對(duì)分子質(zhì)量大,無(wú)法進(jìn)入凝膠內(nèi)部的通道,只能在凝膠外部移動(dòng),路

      程較短,移動(dòng)速度較快(2)尼龍網(wǎng)和尼龍紗(3)氣泡會(huì)攪亂洗脫液中蛋白質(zhì)的洗脫次序,降低分離效果(4)凝膠的交聯(lián)程度、膨脹程度及分離范圍 凝膠吸水值,即每克凝膠膨脹時(shí)吸水100 g(5)相同 保持穩(wěn)定

      3.用雞血作為DNA粗提取的實(shí)驗(yàn)材料,是經(jīng)過(guò)多次實(shí)驗(yàn)結(jié)果的比較,最終才選定的。請(qǐng)回答:

      (1)最終選擇雞血作為實(shí)驗(yàn)材料,是因?yàn)榧译u屬于鳥(niǎo)類,新陳代謝旺盛,因而血液中________細(xì)胞數(shù)目較多,且這類細(xì)胞具有________,可以提供豐富的DNA。

      (2)實(shí)驗(yàn)前可以通過(guò)________或________兩種方法使雞血細(xì)胞沉淀于試管底部,以便除去血清。

      (3)在牧區(qū)采集牛、羊和馬血比較方便,但若用這些實(shí)驗(yàn)材料完成實(shí)驗(yàn),則很難提取到DNA,這是因?yàn)椴溉閯?dòng)物血液中紅細(xì)胞在結(jié)構(gòu)上________,而白細(xì)胞數(shù)量________。

      (4)若改用哺乳動(dòng)物的肝臟作為DNA粗提取的實(shí)驗(yàn)材料是否可行?若可行,應(yīng)對(duì)材料做怎樣的處理,使其核物質(zhì)釋放出來(lái)?

      ________________________________________________________________________。解析:由于哺乳動(dòng)物成熟的紅細(xì)胞沒(méi)有細(xì)胞核,而白細(xì)胞的數(shù)量又少,所以一般不用其血液作為提取DNA的材料,而雞血中的紅細(xì)胞數(shù)目較多且有細(xì)胞核,可以提供豐富的DNA,所以可以用來(lái)做DNA粗提取的實(shí)驗(yàn)材料。如用哺乳動(dòng)物的肝臟來(lái)做實(shí)驗(yàn),要先將肝臟切碎、研磨,再加入蒸餾水使細(xì)胞吸水脹破,將DNA釋放出來(lái)。

      答案:(1)紅 細(xì)胞核(2)離心 靜置(3)無(wú)細(xì)胞核 少(4)可行。先將肝臟切碎、研磨,然后加入蒸餾水

      4.血紅蛋白是人和其他脊椎動(dòng)物紅細(xì)胞的主要組成成分,負(fù)責(zé)血液中O2和部分CO2的運(yùn)輸。請(qǐng)根據(jù)血紅蛋白的提取和分離流程圖回答問(wèn)題。

      (1)將實(shí)驗(yàn)流程補(bǔ)充完整:A為_(kāi)_______,B為_(kāi)_______。凝膠色譜法的基本原理是根據(jù)________而達(dá)到蛋白質(zhì)分離的有效方法。

      (2)洗滌紅細(xì)胞的目的是去除________,洗滌次數(shù)過(guò)少,無(wú)法除去________;離心速度過(guò)高和時(shí)間過(guò)長(zhǎng)會(huì)使____________一同沉淀。達(dá)不到分離的效果。洗滌干凈的標(biāo)志是________________。釋放血紅蛋白的過(guò)程中起作用的是________________。

      (3)在洗脫過(guò)程中加入物質(zhì)的量濃度為20m mol/L的磷酸緩沖液(pH為7.0)的目的是________________________________________________________________________ ________________________________________________________________________。如果紅色區(qū)帶________ ________,說(shuō)明色譜柱制作成功。

      答案:(1)血紅蛋白的釋放 樣品的加入和洗脫 相對(duì)分子質(zhì)量的大小(2)雜蛋白(血漿蛋白)血漿蛋白 白細(xì)胞和淋巴細(xì)胞 離心后的上清液中沒(méi)有黃色 蒸餾水和甲苯(3)準(zhǔn)確模擬生物體內(nèi)的生理環(huán)境,保持體外的pH和體內(nèi)的一致 均勻一致的移動(dòng)

      5.下圖為細(xì)胞內(nèi)DNA復(fù)制過(guò)程示意圖,該過(guò)程在體外也可進(jìn)行,以獲得大量相同的DNA片段,該項(xiàng)技術(shù)稱之為PCR技術(shù),又稱多聚酶鏈?zhǔn)椒磻?yīng),請(qǐng)分析回答:

      (1)PCR過(guò)程與細(xì)胞內(nèi)DNA復(fù)制相比,主要有兩點(diǎn)不同:

      ________________________________________________________________________、________________________________________________________________________。(2)PCR技術(shù)過(guò)程的三個(gè)步驟:________、________、________。

      (3)假設(shè)PCR過(guò)程中,只用一條DNA片段作為模板,請(qǐng)計(jì)算30次循環(huán)后,反應(yīng)物中大約有多少個(gè)這樣的DNA片段?

      ________________________________________________________________________。(4)PCR技術(shù)能在幾小時(shí)內(nèi)將極微量的DNA片段特異性地?cái)U(kuò)增上百萬(wàn)倍,從而解決了樣品中DNA含量低,難以分離的難題。試舉兩例,說(shuō)明PCR技術(shù)的應(yīng)用。

      ________________________________________________________________________。答案:(1)PCR過(guò)程的引物是一小段單鏈DNA或RNA,而細(xì)胞內(nèi)DNA復(fù)制的引物是RNA PCR過(guò)程是高溫變性解旋,不需要解旋酶(2)變性 復(fù)性 延伸(3)230(4)刑偵案件;親子鑒定;凝難疾病的診斷;基因序列分析等(任選兩例)

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