第一篇:一般將來(lái)時(shí)用法小結(jié)
一般將來(lái)時(shí)用法小結(jié)
一般將來(lái)時(shí)表示在將來(lái)某個(gè)時(shí)間要發(fā)生的動(dòng)作或存在的狀態(tài)。
一.一般將來(lái)時(shí)的構(gòu)成:
1.由助動(dòng)詞“ shall/ will +動(dòng)詞原形”構(gòu)成,shall 用于第一人稱(chēng),will 用于第二、第三人稱(chēng),而美式英語(yǔ)在陳述句中無(wú)論什么人稱(chēng),一律用 will。
2.一般將來(lái)時(shí)的否定和疑問(wèn)形式:
一般將來(lái)時(shí)的否定形式是 will not,縮寫(xiě)為 won't;shall not,縮寫(xiě)為 shan't。
一般將來(lái)時(shí)的疑問(wèn)形式是把 will/ shall 提到主語(yǔ)前。如: He won’t go to the park this Sunday.本周日他不去公園。
Will you go swimming with me? 和我一起去游泳好嗎?
二.一般將來(lái)時(shí)的基本用法:
表示“純粹的將來(lái)”:
①表示將要發(fā)生的動(dòng)作或情況,常帶有表示將來(lái)的時(shí)間狀語(yǔ),如 tomorrow, next week, in two days, from now on 等。如: It will be fine tomorrow.明天天氣晴朗。
②表示預(yù)料將要發(fā)生的動(dòng)作或情況。如:
You will feel better after having this medicine.吃了這藥,你就會(huì)感覺(jué)好些的。
③表示由于習(xí)慣傾向而會(huì)經(jīng)常發(fā)生的動(dòng)作,本用法中的 will 要重讀。如:
Boys will be boys.[諺語(yǔ)]男孩畢竟是男孩。
2.表示“帶有情態(tài)意義的將來(lái)”,用來(lái)表示意圖,用 will 來(lái)表示。如: I will be more careful next time.下次我要更加小心。
I won't go shopping this afternoon, but she will.今天下午我不想去購(gòu)物,但她想去。
will 在疑問(wèn)句中,用來(lái)表示有禮貌地征詢(xún)對(duì)方的意見(jiàn)。如: Will you have some more tea? 要不要再喝點(diǎn)茶?
What shall we do this weekend? 本周末我們要干什么?
三.一般將來(lái)時(shí)的其它幾種表示法:
1.用 be going to 表示:
be going to 相當(dāng)于一個(gè)助動(dòng)詞,與其后的動(dòng)詞原形一起構(gòu)成句子的謂語(yǔ),表示近期將要發(fā)生的動(dòng)作或存在的狀態(tài)。如: I'm going to see a film this afternoon.今天下午我想去看電影。
①“ be going to +動(dòng)詞原形”表示主觀上打算在將來(lái)某個(gè)時(shí)間要做某事。如: Her mother is going to buy her a new bike.她媽媽要給她買(mǎi)輛新自行車(chē)。
②“ be going to +動(dòng)詞原形”還可以表示說(shuō)話人根據(jù)已有的跡象認(rèn)為將要發(fā)生的事。如: It's going to rain.快要下雨了。
2.用一般現(xiàn)在時(shí)表示將來(lái)意義
句中的動(dòng)詞是一般現(xiàn)在時(shí),但所表示的意義卻是一般將來(lái)時(shí)。如: Are you free tomorrow? = Are you going to be free tomorrow? 你明天有空嗎?
在時(shí)間 / 條件狀語(yǔ)從句中,如果主句是一般將來(lái)時(shí),從句習(xí)慣上用一般現(xiàn)在時(shí)表示將來(lái)的意義。如: Please tell him to go when he comes.他來(lái)時(shí),就讓他去。
3.用位置移動(dòng)的行為動(dòng)詞的現(xiàn)在進(jìn)行時(shí)表示將來(lái)意義:
這些動(dòng)詞有 come, go, leave, begin, arrive, start 等。如:
We are leaving tomorrow。我們明天要走了
第二篇:一般將來(lái)時(shí)用法小結(jié)
一般將來(lái)時(shí)用法小結(jié):
一般將來(lái)時(shí)表示在將來(lái)某個(gè)時(shí)間要發(fā)生的動(dòng)作或存在的狀態(tài)。
一.一般將來(lái)時(shí)的構(gòu)成:
1.由助動(dòng)詞“ shall/ will +動(dòng)詞原形”構(gòu)成,shall 用于第一人稱(chēng),will 用于第二、第三人稱(chēng),2.一般將來(lái)時(shí)的否定和疑問(wèn)形式:
一般將來(lái)時(shí)的否定形式是 will not,縮寫(xiě)為 won't;shall not,縮寫(xiě)為 shan't。
一般將來(lái)時(shí)的疑問(wèn)形式是把 will/ shall 提到主語(yǔ)前。
如: He won’t go to the park this Sunday.本周日他不去公園。
Will you go swimming with me? 和我一起去游泳好嗎? 二.一般將來(lái)時(shí)的基本用法:
1.表示“純粹的將來(lái)”:①表示將要發(fā)生的動(dòng)作或情況,常帶有表示將來(lái)的時(shí)間狀語(yǔ),如 tomorrow, next week, in two days, from now on 等。如: It will be fine tomorrow.明天天氣晴朗。②表示預(yù)料將要發(fā)生的動(dòng)作或情況。如: You will feel better after having this medicine.吃了這藥,你就會(huì)感覺(jué)好些的。③表示由于習(xí)慣傾向而會(huì)經(jīng)常發(fā)生的動(dòng)作,本用法中的 will 要重讀。如: Boys will be boys.[諺語(yǔ)]男孩畢竟是男孩。
2.表示“帶有情態(tài)意義的將來(lái)”,用來(lái)表示意圖,用 will 來(lái)表示。
如: I will be more careful next time.下次我要更加小心。I won't go shopping this afternoon, but she will.今天下午我不想去購(gòu)物,但她想去。
will 在疑問(wèn)句中,用來(lái)表示有禮貌地征詢(xún)對(duì)方的意見(jiàn)。如: Will you have some more tea? 要不要再喝點(diǎn)茶?What shall we do this weekend? 本周末我們要干什么?
三.一般將來(lái)時(shí)的其它幾種表示法: 1.用 be going to 表示be going to 相當(dāng)于一個(gè)助動(dòng)詞,與其后的動(dòng)詞原形一起構(gòu)成句子的謂語(yǔ),表示近期將要發(fā)生的動(dòng)作或存在的狀態(tài)
如: I'm going to see a film this afternoon.今天下午我想去看電影。
①“ be going to +動(dòng)詞原形”表示主觀上打算在將來(lái)某個(gè)時(shí)間要做某事。如: Her mother is going to buy her a new bike.她媽媽要給她買(mǎi)輛新自行車(chē)。
②“ be going to +動(dòng)詞原形”還可以表示說(shuō)話人根據(jù)已有的跡象認(rèn)為將要發(fā)生的事。如: It's going to rain.快要下雨了。2.用一般現(xiàn)在時(shí)表示將來(lái)意義
句中的動(dòng)詞是一般現(xiàn)在時(shí),但所表示的意義卻是一般將來(lái)時(shí)。如: Are you free tomorrow? = Are you going to be free tomorrow? 你明天有空嗎?
在時(shí)間 / 條件狀語(yǔ)從句中,如果主句是一般將來(lái)時(shí),從句習(xí)慣上用一般現(xiàn)在時(shí)表示將來(lái)的意義。如: Please tell him to go when he comes.他來(lái)時(shí),就讓他去。
3.用位置移動(dòng)的行為動(dòng)詞的現(xiàn)在進(jìn)行時(shí)表示將來(lái)意義: 這些動(dòng)詞有 come, go, leave, begin, arrive, start 等。如: We are leaving tomorrow。我們明天要走了 一般過(guò)去時(shí)也譯為單純過(guò)去時(shí)。
例A:He worked very hard last year.(去年他很用功。)
例B:Mr.Smith bought a new car yesterday.(史密斯先生昨天買(mǎi)了一輛新車(chē)。)
例C:They were here only a few minutes ago.(幾分鐘前他們還在這里。)
一、一般過(guò)去時(shí)的用法:
解說(shuō):一般過(guò)去時(shí)最明顯的現(xiàn)象就是常由表達(dá)過(guò)去之時(shí)間的副詞或副詞短語(yǔ)來(lái)修飾它(如各例句的斜體字部分)。這些常用于修飾一般過(guò)去時(shí)的副詞有:yesterday, yesterday morning(afternoon, evening), just now(剛才), before(以前), then(at that time)
(當(dāng)時(shí)), last +時(shí)間
(如 last week, month, year, Monday, … January, … spring, …, etc.), that +時(shí)間
(如 that day, afternoon, summer, …, etc.), 時(shí)間 + ago(如 a few minutes ago, two weeks ago , years ago, … etc.)
二、一般過(guò)去時(shí)的主要語(yǔ)法功能:
1.表示過(guò)去發(fā)生的動(dòng)作或情況, 過(guò)去時(shí)間可以由狀語(yǔ)或上下文表示出來(lái):?
e.g.He returned home very late last night.他昨晚很晚回家。
He turned off TV at midnight.他午夜才關(guān)了電視。他常常在午夜后才關(guān)電視。He often turns off TV after midnight.2.表示過(guò)去反復(fù)發(fā)生的或習(xí)慣性的動(dòng)作,常和never, often, usually等狀語(yǔ)連用。
e.g.She often swam/ went swimming last summer.去年夏天她經(jīng)常去游泳。
In the past few years, Mary seldom called her grandfather.過(guò)去幾年中,瑪麗很少給她爺爺打電話。
3.可用在said, reported等后面的間接引語(yǔ)中,代替一般現(xiàn)在時(shí)。
e.g.She said, “I'm tired of his long speech.”----She said that she was tired of his long speech.她說(shuō)她煩透了他的長(zhǎng)篇大論。
The doctor reported, “The patient is very well.”----The doctor reported that the patient was very well.醫(yī)生說(shuō)患者情況良好。
4.用在時(shí)間和條件狀語(yǔ)從句中,代替過(guò)去將來(lái)時(shí)。
e.g.Father promised to buy me a new bike when he got/would get his pay the next day.父親答應(yīng)明天拿到工資后給我買(mǎi)輛新自行車(chē)。
He said she would lose her temper if she knew the truth.他說(shuō)如果她知道真相會(huì)發(fā)脾氣的。
5.用在對(duì)話中重復(fù)對(duì)方剛提到的事。
e.g.A: I'm hungry.B: What did you say? 我餓了。你說(shuō)什么?
A: Her name is Mary.B: What was her name?她名叫瑪麗。剛才你說(shuō)她叫什么名字?
一、聲學(xué)
物因振動(dòng)而發(fā)聲,振動(dòng)停止停發(fā)聲。固比液氣傳聲快,真空不能傳播聲。
感知聲音兩途徑,雙耳效應(yīng)方向明。規(guī)則振動(dòng)叫樂(lè)音,無(wú)規(guī)振動(dòng)生噪聲。
分貝強(qiáng)弱要注意,樂(lè)音也能變?cè)肼暋7涝氘a(chǎn)生阻傳聲,嚴(yán)防噪聲入耳中。
聲音大小叫響度,響度大小看振幅。距離太遠(yuǎn)響度小,減少分散增大聲。
聲音高低叫音調(diào),頻率高低調(diào)不同。長(zhǎng)松粗低短緊高,發(fā)聲物體要分清。
同一音調(diào)樂(lè)器多,想要區(qū)分靠音色,只聞其聲知其人,音色不同傳信息。
超聲次聲聽(tīng)不到,回聲測(cè)距定位妙。B超查病信息傳,超聲碎石聲傳能。
二、光學(xué)
發(fā)光物體叫光源,描述路徑有光線;直線傳播有條件,同種介質(zhì)需均勻;
影子小孔日月食,還有激光能準(zhǔn)直;向右看齊聽(tīng)口令,三點(diǎn)一線能命中;
月亮本不是光源,長(zhǎng)度單位有光年;傳光最快數(shù)真空,8分能飛到月宮。
光線原以直線過(guò),遇到界面成反射;一面兩角和三線,法線老是在中間;
三線本來(lái)就共面,兩角又以相等見(jiàn);入射角變反射角,光路可逆互相看;
反射類(lèi)型有兩種,成像反射靠鏡面;學(xué)生坐在各角落,看字全憑漫反射;
若是個(gè)別有“反光”,那是鏡面幫倒忙。
鏡面反射成虛像,像物同大都一樣,物遠(yuǎn)像遠(yuǎn)沒(méi)影響,連線垂直鏡中央.
還有凸面凹面鏡,反光作用不一樣;凹面鏡能會(huì)聚光,來(lái)把燈碗灶臺(tái)當(dāng);
觀后鏡使光發(fā)散,擴(kuò)大視野任車(chē)轉(zhuǎn)。
不管凸透凹透鏡,都有一定折射性;經(jīng)過(guò)光心不變向,會(huì)聚發(fā)散要分清。
平行光束穿透鏡,通過(guò)焦點(diǎn)是一定;折射光線可逆行,焦點(diǎn)出發(fā)必平行;
顯微鏡來(lái)是組合,兩個(gè)鏡片無(wú)分別;只是大小不一樣,焦距位置要適當(dāng);
物鏡實(shí)像且放大,目鏡虛像再放大;望遠(yuǎn)鏡來(lái)看得清,全靠?jī)善雇哥R;
物鏡實(shí)像來(lái)縮小,目鏡虛像又放大。為啥感覺(jué)像變大,全靠視角來(lái)變化。
畫(huà)反射光路圖:
作圖首先畫(huà)法線,反入夾角平分線,垂直法線立界面。光線方向要標(biāo)全
畫(huà)折射光路:
空射水玻折向法,水玻射空偏離法。海市蜃樓是折射,觀察虛像位偏高。凸透鏡成像:
一倍焦距不成像,內(nèi)虛外實(shí)分界明;二倍焦距物像等,外小內(nèi)大實(shí)像成;
物近像遠(yuǎn)像變大,物遠(yuǎn)像近像變小;實(shí)像倒立虛像正,照、投、放大對(duì)應(yīng)明 眼睛和眼鏡
晶薄焦長(zhǎng)看遠(yuǎn)物,晶厚焦短看近物。晶厚近視薄遠(yuǎn)視,凹透矯近凸矯遠(yuǎn)。
近物光聚網(wǎng)膜前,已經(jīng)成為近視眼。遠(yuǎn)物光聚網(wǎng)膜后,已經(jīng)成為老花眼。
三、熱學(xué)
冷熱表示用溫度,熱脹冷縮測(cè)溫度;冰點(diǎn)零度沸點(diǎn)百,常用單位攝氏度。
量程分度要看好;放對(duì)觀察視線平,測(cè)體溫前必須甩;細(xì)縮口和放大鏡
物體狀態(tài)有三類(lèi),固體液體和氣體;物態(tài)變化有六種,熔凝汽液升凝華;
汽化當(dāng)中有不同,既有蒸發(fā)又沸騰;蒸發(fā)快慢不相同,溫度面積氣流通;
液化方法有區(qū)分,壓縮體積和降溫;液化現(xiàn)象遍天地,雨霧露水和白氣。
升華現(xiàn)象不一般,燈絲變細(xì)凍衣干;凝華現(xiàn)象造圖畫(huà),窗花霜雪和樹(shù)掛;
晶體熔化和凝固,吸放熱但溫不變。液體沸騰需吸熱,升到沸點(diǎn)溫不變
人工降雨本領(lǐng)大,干冰升華又液化。吸收熱量能致冷,熔化升華和汽化;
四、電路及特點(diǎn):
摩擦起電本領(lǐng)大,電子轉(zhuǎn)移有變化;吸引排斥驗(yàn)電器,靜電放電要注意 毛皮摩擦橡膠棒,棒上負(fù)電比較強(qiáng);絲綢摩擦玻璃棒,絲負(fù)玻正等電量
定向移動(dòng)成電流,電流方向有規(guī)定;電源外部正到負(fù);自由電子是倒流。
容易導(dǎo)電是導(dǎo)體,不易導(dǎo)電是絕緣;絕緣自由電荷少,防止漏電和觸電;
學(xué)電路前畫(huà)元件,認(rèn)真規(guī)范是關(guān)鍵;整個(gè)圖形是長(zhǎng)框,元件均勻擺四方;
拐角之處留空白,這樣標(biāo)準(zhǔn)顯出來(lái);通路斷路和短路,最后一路燒電源。
基本電路串并聯(lián),分清特點(diǎn)是關(guān)鍵;串聯(lián)就是一條路,正極出發(fā)負(fù)極回;
一燈燒毀全路斷,一個(gè)開(kāi)關(guān)管全局;開(kāi)關(guān)位置無(wú)影響,局部短路特殊用。
并聯(lián)電路像河流,分了干路分支流,干路開(kāi)關(guān)全控制,支路電器獨(dú)立行。
串聯(lián)等流電壓分,并聯(lián)分流電壓等;串聯(lián)燈亮電阻大,并聯(lián)燈亮小電阻
五、照明電路和安全用電
火線零線要分清,示意圖上總平行;電度表來(lái)測(cè)電能,保險(xiǎn)絲在干路中;
各種插座要并聯(lián),用電器間也包含;燈泡開(kāi)關(guān)是串聯(lián),開(kāi)關(guān)接的是火線;
尾部金屬接火線,這樣來(lái)做最安全;零線要接螺旋套,預(yù)防觸電要記牢。
金屬外殼用電器,中間插腳要接地;三孔插座用兩孔,絕緣破損太危險(xiǎn)。
功率過(guò)大會(huì)超載,電路短路更危險(xiǎn),保險(xiǎn)裝置起作用,電表銘牌會(huì)計(jì)算。安全電壓要記牢,構(gòu)成通路會(huì)觸電,高壓帶電不靠近,觸電首先斷電源
樹(shù)下避雨要當(dāng)心,高物要裝避雷針;濕手莫要扳開(kāi)關(guān),老化元件勤更換;
六、伏安法測(cè)電阻、電功率連接電路
畫(huà)電路,連元件,連線過(guò)程斷開(kāi)關(guān),滑片移到最大端,電壓表并,電流表串,正”“負(fù)”接錯(cuò)針?lè)?,整理儀器再計(jì)算。
“同段導(dǎo)體三個(gè)量,I、U正比I、R反,不管I、U多變換,理解R是不變。
W=UIt,可用諧音法記作:“大不了,又挨踢
七、電與磁
(1)磁體周?chē)写艌?chǎng),北出南回磁感向,場(chǎng)外北極也一樣(2)閉導(dǎo)切割磁感線,感應(yīng)電流就出現(xiàn)。改變動(dòng)向流向變,機(jī)械能向電能轉(zhuǎn)。電磁感應(yīng)來(lái)發(fā)電,法拉第貢獻(xiàn)不一般。
(3)判斷螺線用安培,右手緊握螺線管。電流方向四指指,N極指向拇指端。
五、力學(xué)
1、正確使用刻度尺的“四要”
尺子要放正,視線要垂直,讀數(shù)要估計(jì),記錄要單位
測(cè)量?jī)x器要讀數(shù),最小刻度要記住;天平游碼看左邊,量筒水面看底部;壓強(qiáng)計(jì)讀高度差,上小下大密度計(jì);
電流電壓先看檔,電能表上有小數(shù)。
2、質(zhì)量與密度
質(zhì)量本是一屬性,物體本身來(lái)決定;狀態(tài)、形狀和位置,外變不變其大小
一放平,二調(diào)零,三調(diào)橫梁成水平,指針偏哪哪邊重,螺母反向高處動(dòng)”,以及“稱(chēng)物體,先估計(jì),左物右碼方便自己;夾砝碼須心細(xì),加減對(duì)應(yīng)盤(pán)高低 密度一般是一定,溫度變化會(huì)不同,體積換算勿遺忘,立方厘米對(duì)毫升。
3、機(jī)械運(yùn)動(dòng)
運(yùn)動(dòng)和靜止,貴在選參照,快慢和方向,相同是靜止
“物體有慣性,慣性是屬性,大小看質(zhì)量,不論動(dòng)與靜
4、平均速度的計(jì)算
運(yùn)動(dòng)路線示意圖,運(yùn)動(dòng)問(wèn)題更分明;過(guò)橋、穿洞要記清,橋長(zhǎng)車(chē)長(zhǎng)為路程;
相遇、追擊有訣竅,找好路程列方程;回聲激光來(lái)測(cè)距,距離兩倍是路程。
5、二力平衡的條件
一物二力能平衡,方向相反大小等;一條直線是條件,合力一定等于零。
6、力的圖示的步驟
一畫(huà)簡(jiǎn)圖二定點(diǎn),三定標(biāo)度四畫(huà)線,五截線段六畫(huà)尖,最后數(shù)據(jù)標(biāo)尖邊。
7、二力合成的特點(diǎn)
二力合成一直線。同向相加反相減,同向方向不改變,反向隨著大的變
8、力臂的確定及其畫(huà)法
找支點(diǎn),畫(huà)力線(力的作用),從點(diǎn)(支點(diǎn))向線(力的作用線)引垂線,力臂就是此線段
9、連通器的特點(diǎn)
連通器,底連通,同液體,同高低。
10、液體內(nèi)部的壓強(qiáng)
液內(nèi)各方有壓強(qiáng),無(wú)論對(duì)底或壁上,同深各向等壓強(qiáng),密度深度有影響。不能忘——,ρgh相乘在一堂。
11、阿基米德原理
液物向上向下壓力差,浮力大小就是它,浮大重力向上爬,重大浮力深處下,兩力相等懸漂啦。要問(wèn)浮力有多大?ρgV排計(jì)算它。人說(shuō)幾何很困難,難點(diǎn)就在輔助線。輔助線,如何添?把握定理和概念。還要刻苦加鉆研,找出規(guī)律憑經(jīng)驗(yàn)。圖中有角平分線,可向兩邊作垂線。也可將圖對(duì)折看,對(duì)稱(chēng)以后關(guān)系現(xiàn)。角平分線平行線,等腰三角形來(lái)添。角平分線加垂線,三線合一試試看。線段垂直平分線,常向兩端把線連。要證線段倍與半,延長(zhǎng)縮短可試驗(yàn)。三角形中兩中點(diǎn),連接則成中位線。三角形中有中線,延長(zhǎng)中線等中線。平行四邊形出現(xiàn),對(duì)稱(chēng)中心等分點(diǎn)。梯形里面作高線,平移一腰試試看。平行移動(dòng)對(duì)角線,補(bǔ)成三角形常見(jiàn)。證相似,比線段,添線平行成習(xí)慣。等積式子比例換,尋找線段很關(guān)鍵。直接證明有困難,等量代換少麻煩。斜邊上面作高線,比例中項(xiàng)一大片。半徑與弦長(zhǎng)計(jì)算,弦心距來(lái)中間站。圓上若有一切線,切點(diǎn)圓心半徑連。切線長(zhǎng)度的計(jì)算,勾股定理最方便。要想證明是切線,半徑垂線仔細(xì)辨。是直徑,成半圓,想成直角徑連弦。弧有中點(diǎn)圓心連,垂徑定理要記全。圓周角邊兩條弦,直徑和弦端點(diǎn)連。弦切角邊切線弦,同弧對(duì)角等找完。要想作個(gè)外接圓,各邊作出中垂線。還要作個(gè)內(nèi)接圓,內(nèi)角平分線夢(mèng)圓如果遇到相交圓,不要忘作公共弦。內(nèi)外相切的兩圓,經(jīng)過(guò)切點(diǎn)公切線。
若是添上連心線,切點(diǎn)肯定在上面。要作等角添個(gè)圓,證明題目少困難。輔助線,是虛線,畫(huà)圖注意勿改變。假如圖形較分散,對(duì)稱(chēng)旋轉(zhuǎn)去實(shí)驗(yàn)?;咀鲌D很關(guān)鍵,平時(shí)掌握要熟練。解題還要多心眼,經(jīng)??偨Y(jié)方法顯。切勿盲目亂添線,方法靈活應(yīng)多變。分析綜合方法選,困難再多也會(huì)減。虛心勤學(xué)加苦練,成績(jī)上升成直線。幾何證題難不難,關(guān)鍵常在輔助線;知中點(diǎn)、作中線,中線處長(zhǎng)加倍看;底角倍半角分線,有時(shí)也作處長(zhǎng)線;線段和差及倍分,延長(zhǎng)截取證全等;公共角、公共邊,隱含條件須挖掘;全等圖形多變換,旋轉(zhuǎn)平移加折疊;中位線、常相連,出現(xiàn)平行就好辦;四邊形、對(duì)角線,比例相似平行線;梯形問(wèn)題好解決,平移腰、作高線;兩腰處長(zhǎng)義一點(diǎn),亦可平移對(duì)角線;正余弦、正余切,有了直角就方便;特殊角、特殊邊,作出垂線就解決;實(shí)際問(wèn)題莫要慌,數(shù)學(xué)建模幫你忙;圓中問(wèn)題也不難,下面我們慢慢談;弦心距、要垂弦,遇到直徑周角連;切點(diǎn)圓心緊相連,切線常把半徑添;兩圓相切公共線,兩圓相交公共弦;切割線,連結(jié)弦,兩圓三圓連心線;基本圖形要熟練,復(fù)雜圖形多分解;以上規(guī)律屬一般,靈活應(yīng)用才方便。
第三篇:一般將來(lái)時(shí)用法小結(jié)0
一般將來(lái)時(shí)用法小結(jié)
一般將來(lái)時(shí)表示在將來(lái)某個(gè)時(shí)間要發(fā)生的動(dòng)作或存在的狀態(tài)。
一.一般將來(lái)時(shí)的構(gòu)成:
1.由助動(dòng)詞“ shall/ will +動(dòng)詞原形”構(gòu)成,shall 用于第一人稱(chēng),will 用于第二、第三人稱(chēng),而美式英語(yǔ)在陳述句中無(wú)論什么人稱(chēng),一律用 will。
2.一般將來(lái)時(shí)的否定和疑問(wèn)形式:
一般將來(lái)時(shí)的否定形式是 will not,縮寫(xiě)為 won't;shall not,縮寫(xiě)為 shan't。
一般將來(lái)時(shí)的疑問(wèn)形式是把 will/ shall 提到主語(yǔ)前。如: He won’t go to the park this Sunday.本周日他不去公園。
Will you go swimming with me? 和我一起去游泳好嗎?
二.一般將來(lái)時(shí)的基本用法:
表示“純粹的將來(lái)”:
①表示將要發(fā)生的動(dòng)作或情況,常帶有表示將來(lái)的時(shí)間狀語(yǔ),如 tomorrow, next week, in two days, from now on 等。如: It will be fine tomorrow.明天天氣晴朗。
②表示預(yù)料將要發(fā)生的動(dòng)作或情況。如:
You will feel better after having this medicine.吃了這藥,你就會(huì)感覺(jué)好些的。
③表示由于習(xí)慣傾向而會(huì)經(jīng)常發(fā)生的動(dòng)作,本用法中的 will 要重讀。如:
Boys will be boys.[諺語(yǔ)]男孩畢竟是男孩。
2.表示“帶有情態(tài)意義的將來(lái)”,用來(lái)表示意圖,用 will 來(lái)表示。如: I will be more careful next time.下次我要更加小心。
I won't go shopping this afternoon, but she will.今天下午我不想去購(gòu)物,但她想去。
will 在疑問(wèn)句中,用來(lái)表示有禮貌地征詢(xún)對(duì)方的意見(jiàn)。如: Will you have some more tea? 要不要再喝點(diǎn)茶?
What shall we do this weekend? 本周末我們要干什么?
三.一般將來(lái)時(shí)的其它幾種表示法:
1.用 be going to 表示:
be going to 相當(dāng)于一個(gè)助動(dòng)詞,與其后的動(dòng)詞原形一起構(gòu)成句子的謂語(yǔ),表示近期將要發(fā)生的動(dòng)作或存在的狀態(tài)。如: I'm going to see a film this afternoon.今天下午我想去看電影。
①“ be going to +動(dòng)詞原形”表示主觀上打算在將來(lái)某個(gè)時(shí)間要做某事。如: Her mother is going to buy her a new bike.她媽媽要給她買(mǎi)輛新自行車(chē)。
②“ be going to +動(dòng)詞原形”還可以表示說(shuō)話人根據(jù)已有的跡象認(rèn)為將要發(fā)生的事。如: It's going to rain.快要下雨了。
2.用一般現(xiàn)在時(shí)表示將來(lái)意義
句中的動(dòng)詞是一般現(xiàn)在時(shí),但所表示的意義卻是一般將來(lái)時(shí)。如: Are you free tomorrow? = Are you going to be free tomorrow? 你明天有空嗎?
在時(shí)間 / 條件狀語(yǔ)從句中,如果主句是一般將來(lái)時(shí),從句習(xí)慣上用一般現(xiàn)在時(shí)表示將來(lái)的意義。如: Please tell him to go when he comes.他來(lái)時(shí),就讓他去。
3.用位置移動(dòng)的行為動(dòng)詞的現(xiàn)在進(jìn)行時(shí)表示將來(lái)意義:
這些動(dòng)詞有 come, go, leave, begin, arrive, start 等。如:
We are leaving tomorrow。我們明天要走了 一般將來(lái)時(shí)練習(xí):
()1.There __________ a meeting tomorrow afternoon.A.will be going to
B.will going to be
C.is going to be
D.will go to be
()2.Charlie ________ here next month.A.isn’t working
B.doesn’t working
C.isn’t going to working
D.won’t work
()3.He ________ very busy this week, he ________ free next week.A.will be;is
B.is;is
C.will be;will be
D.is;will be
4.There ________ a dolphin show in the zoo tomorrow evening.A.was
B.is going to have
C.will have
D.is going to be
()5.–________ you ________ free tomorrow?
– No.I ________ free the day after tomorrow.A.Are;going to;will
B.Are;going to be;will
C.Are;going to;will be
D.Are;going to be;will be
6.Mother ________ me a nice present on my next birthday.A.will gives
B.will give
C.gives
D.give
7.– Shall I buy a cup of tea for you?
–________.(不,不要。)
A.No, you won’t.B.No, you aren’t.C.No, please don’t.D.No, please.8.– Where is the morning paper?
– I ________ it for you if you want it at once.A.get
B.am getting
C.to get
D.will get 9.________ a concert next Saturday?
A.There will be
B.Will there be
C.There can be
D.There are 10.If they come, we ________ a meeting.A.have
B.will have
C.had
D.would have 11.He ________ her a beautiful hat on her next birthday.A.gives
B.gave
C.will giving
D.is going to give 12.He ________ to us as soon as he gets there.A.writes
B.has written
C.will write
D.wrote 13.He ________ in three days.A.coming back
B.came back
C.will come back
D.is going to coming back
14.If it ________ tomorrow, we’ll go roller-skating.A.isn’t rain
B.won’t rain
C.doesn’t rain
D.doesn’t fine
15.– Will his parents go to see the Terra Cotta Warriors tomorrow?
– No, ________(不去).A.they willn’t.B.they won’t.C.they aren’t.D.they don’t.1.C
這個(gè)句型是there be與be going to的結(jié)合,結(jié)合后是there is going to be。
2.D
A是進(jìn)行時(shí)態(tài)的,B與 C 構(gòu)成都有問(wèn)題,doesn’t 與be going to 后面都應(yīng)該放動(dòng)詞原型。
3.D
根據(jù)時(shí)間狀語(yǔ)this week和next week斷定出前半句一般現(xiàn)在時(shí),根據(jù)后半句判斷應(yīng)該是一般將來(lái)時(shí)。
4.D
理由同第一題的一樣。
5.D
be free是固定搭配,所以無(wú)論是用be going to句型還是用will句型都不能少了be。
6.B..根據(jù)next birthday判斷,這個(gè)句子應(yīng)該是一般將來(lái)時(shí)的,它的構(gòu)成應(yīng)該是will + 動(dòng)詞原形。
7.C
事實(shí)上這個(gè)句子不是一般將來(lái)時(shí),是一個(gè)請(qǐng)求別人許可的句子。所以回答的時(shí)候應(yīng)該比較客氣。
8.D
at once 是一個(gè)一般將來(lái)時(shí)的時(shí)間狀語(yǔ),所以這個(gè)用一般將來(lái)時(shí)。
9.B
從句子結(jié)尾的問(wèn)號(hào)看,這個(gè)句子是問(wèn)句,只有B選項(xiàng)是按照問(wèn)句的形式給出的。
10.B
這是一個(gè)典型的主將從現(xiàn)的句型,條件從句是現(xiàn)在時(shí)的,主句應(yīng)該是將來(lái)時(shí)的。
11.D
on her next birthday.這個(gè)時(shí)間狀語(yǔ)說(shuō)明時(shí)態(tài)上應(yīng)該是一般將來(lái)時(shí)。
12.C
這是一個(gè)典型的主將從現(xiàn)的句型,時(shí)間狀語(yǔ)從句是現(xiàn)在時(shí)的,主句應(yīng)該是將來(lái)時(shí)的。
13.C
in three days是一個(gè)一般將來(lái)時(shí)的時(shí)間狀語(yǔ),意思是三天以后,所以是一般將來(lái)時(shí)的句子。
14.C
這是一個(gè)典型的主將從現(xiàn)的句型,主句是將來(lái)時(shí)的,條件從句應(yīng)該是現(xiàn)在時(shí)的。
15.B
所問(wèn)要所答。
第四篇:一般將來(lái)時(shí)用法及練習(xí)題
一般將來(lái)時(shí)(附練習(xí)題)
一般將來(lái)時(shí)(The future indefinite tense)一般將來(lái)時(shí)主要有以下幾種表現(xiàn)形式:
由助動(dòng)詞shall或will加動(dòng)詞原形構(gòu)成,shall 用于第一人稱(chēng),will用于第二、三人稱(chēng)。除英國(guó)外的說(shuō)英語(yǔ)的國(guó)家,在陳述句中,即使在第一人稱(chēng)一般也用will,在英國(guó)也有這種趨勢(shì)。在口語(yǔ)中,常用shall, will的縮寫(xiě)形式為’ll, 如:I’ll, you’ll等。Shall not的縮寫(xiě)式為:shan’t, will not 的縮寫(xiě)式為:won’t.肯定句:I/We shall/will go.You/He/She/They Will go.否定句:I/We shall/will not go.You/He/She/They Will not go.疑問(wèn)句:Shall I/we go? Will you/he/she/they go?
什么叫做一般將來(lái)時(shí)
(1)一般將來(lái)時(shí)表示將要發(fā)生的動(dòng)作或情況。例如:I will(shall)arrive tomorrow.我明天到。Will you be free tonight? 你今晚有空嗎?
We won’t(shan’t)be busy this evening.我們今晚不忙。
(2)在一般將來(lái)時(shí)的句子中,有時(shí)有表示將來(lái)時(shí)間的狀語(yǔ),有時(shí)沒(méi)有時(shí)間狀語(yǔ),這時(shí)要從意思上判斷是否指未來(lái)的動(dòng)作或情況。例如: Will she come? 她(會(huì))來(lái)嗎?
We’ll only stay for two weeks.我們只待兩星期。
The meeting won’t last long.會(huì)開(kāi)不了多久。(3)在以第一人稱(chēng)I或we作主語(yǔ)的問(wèn)句中,一般使用助動(dòng)詞shall,這時(shí)或是征求對(duì)方的意見(jiàn)(a),或是詢(xún)問(wèn)一個(gè)情況(b): a.Where shall we meet? 我們?cè)谀膬号鲱^?
b.Shall we have any classes tomorrow?明天我們有課嗎?
在這類(lèi)問(wèn)句中,近年來(lái)也有不少人用will,特別是在美國(guó)。例如: How will I get there? 我怎么去?(4)be going to+動(dòng)詞原形
a.表示打算、準(zhǔn)備做的事。例如:
We are going to put up a building here.我們打算在這里蓋一座樓。How are you going to spend your holidays?假期你準(zhǔn)備怎樣過(guò)? b.表示即將發(fā)生或肯定要發(fā)生的事。例如: I think it is going to snow.我看要下雪了。
There’s going to be a lot of trouble about this.這事肯定會(huì)有很多麻煩。
c.“will”句型與“be going to”句型,前者表示純粹將來(lái),后者表示打算、計(jì)劃、準(zhǔn)備做的事情,更強(qiáng)調(diào)主語(yǔ)的主觀意愿。例如: Tomorrow will be Saturday.明天是周六了。
We are going to visit Paris this summer.今年夏天我們打算游覽巴黎。課堂練習(xí)題:
一、單項(xiàng)選擇。
()1.There __________ a meeting tomorrow afternoon.A.will be going to B.will going to be C.is going to be D.will go to be()2.Charlie ________ here next month.A.isn’t working B.doesn’t working C.isn’t going to working D.won’t work
()3.He ________ very busy this week, he ________ free next week.A.will be;is B.is;is C.will be;will be D.is;will be()4.There ________ a dolphin show in the zoo tomorrow evening.A.was B.is going to have C.will have D.is going to be()5.–________ you ________ free tomorrow? – No.I ________ free the day after tomorrow.A.Are;going to;will B.Are;going to be;will C.Are;going to;will be D.Are;going to be;will be()6.Mother ________ me a nice present on my next birthday.A.will gives B.will give C.gives D.give()7.– Shall I buy a cup of tea for you? –________.(不,不要。)
A.No, you won’t.B.No, you aren’t.C.No, please don’t.D.No, please.()8.– Where is the morning paper? – I ________ it for you at once.A.get B.am getting C.to get D.will get
二、動(dòng)詞填空。1.I ______(leave)in a minute.I ______(finish)all my work before I ______(leave).2.—How long _____ you _____(study)in our country? —I _____(plan)to be here for about one more year.—I _____(hope)to visit the other parts of your country.—What ______ you ______(do)after you ______(leave)here? —I ______(return)home and ______(get)a job.3.I ______(be)tired.I ______(go)to bed early tonight.4.Mary’s birthday is next Monday, her mother _____(give)her a present.三、句型轉(zhuǎn)換。
1.People in the north often go skating in winter.(next winter)
2.There are two cinemas in that town.(next year)
3.He comes back late.(in two days)
4.She is a conductor of a train.(soon)參考答案:
一、單項(xiàng)選擇。
1.C 2.D 3.D 4.D 5.D 6.B 7.C 8.D
二、動(dòng)詞填空。
1.am leaving;will finish;leave 2.will;study;plan;hope;will;do;leave;will return;get 3.am;will 4.will give
三、句型轉(zhuǎn)換。
1.People in the north will go skating next winter.2.There will be two cinemas in that town next year.3.He will come back late in two days.4.She will be a conductor of a train soon.家庭作業(yè)
一、單項(xiàng)選擇。
()1.The day after tomorrow they ________ a volleyball match.A.will watching B.watches C.is watching D.is going to watch()2.There ________ a birthday party this Sunday.A.shall be B.will be C.shall going to be D.will going to be()3.They ________ an English evening next Sunday.A.are having B.are going to have C.will having D.is going to have()4.________ you ________ free next Sunday? A.Will;are B.Will;be C.Do;be D.Are;be()5.He ________ there at ten tomorrow morning.A.will B.is C.will be D.be()6.________ your brother ________ a magazine from the library? A.Are;going to borrow B.Is;going to borrow C.Will;borrows D.Are;going to borrows
二、動(dòng)詞填空。
1.I am afraid there ______(be)a meeting this afternoon.I can’t join you.2.Mike ______(believe, not)this until he ______(see)it with his own eyes.3.Most of us don’t think their team ______(win).三、句型轉(zhuǎn)換。
1.China is a modern and strong country.(in twenty years)
2.Do you study hard?(from now on)
3.She didn’t speak English at the meeting.(before long)
The keys:
一、單項(xiàng)選擇。
1.D 2.B 3.B 4.B 5.C 6.B
二、動(dòng)詞填空。
1.will be 2.won’t believe;sees 3.will win
三、句型轉(zhuǎn)換。
1.China will be a modern and strong country in twenty years.2.Will you study hard from now on? 3.She won’t speak English at the meeting before long.
第五篇:八年級(jí)上冊(cè)一般將來(lái)時(shí)用法講解及練習(xí)
一般將來(lái)時(shí):
一、由“will+動(dòng)詞原形”構(gòu)成。一般將來(lái)時(shí)表示將來(lái)某個(gè)時(shí)間要發(fā)生的動(dòng)作或存在的狀態(tài),也表示將來(lái)經(jīng)?;蚍磸?fù)發(fā)生的動(dòng)作,常與表將來(lái)的時(shí)間狀語(yǔ)連用,如: tomorrow(明天),the day after tomorrow(后天), next?(下個(gè)??), soon(不久), one day(某天), from now(從今后), in?(time)(在??時(shí)間之后),in the future(在將來(lái))等。最基本的結(jié)構(gòu):will / shall + 動(dòng)詞原形
“主謂(賓)句型”的一般將來(lái)時(shí):
肯定句:主語(yǔ)+ will +動(dòng)詞原形+(賓語(yǔ))+其他成份
People will have robots in their homes.否定句:在will 的后面加not即可。will not = won’t
People will not(won’t)have robots in their homes.一般疑問(wèn)句:把will 提到句子主語(yǔ)之前,結(jié)尾變問(wèn)號(hào)。
Will people have robots in their homes? 特殊疑問(wèn)句:特殊疑問(wèn)詞+will +主語(yǔ)+動(dòng)詞原形+其他成份? When will people have robots in their homes?
二、“There be”句型的一般將來(lái)時(shí)
肯定句: There will be +名詞+其他成份=There is /are going to be
[注意]:無(wú)論后面加單數(shù)名詞或復(fù)數(shù)形式,be都必須用原形。There will be only one country.否定句:在will后面加not.There won’t be only one country.一般疑問(wèn)句:把will提到there之前。
Will there be only one country?
Yes, there will./ No, there won’t.三、be going to+動(dòng)詞原形
a.表示打算、準(zhǔn)備做的事。例如:
We are going to put up a building here.我們打算在這里蓋一座樓。
How are you going to spend your holidays?假期你準(zhǔn)備怎樣過(guò)?
b.表示即將發(fā)生或肯定要發(fā)生的事。例如:
I think it is going to snow.我看要下雪了。
There’s going to be a lot of trouble about this.這事肯定會(huì)有很多麻煩。
c.“will”句型與“be going to”句型,前者表示純粹將來(lái),后者表示打算、計(jì)劃、準(zhǔn)備做的事情,更強(qiáng)調(diào)主語(yǔ)的主觀意愿。例如:
Tomorrow will be Saturday.明天是周六了。
We are going to visit Paris this summer.今年夏天我們打算游覽巴黎。
四、用be doing表示將來(lái):主要意義是表示按計(jì)劃、安排即將發(fā)生的動(dòng)作,常用于位置轉(zhuǎn)移的動(dòng)詞。
如:go,come,leave,arrive等,也可用于其他動(dòng)作動(dòng)詞。
We are having fish for dinner.We are moving to a different hotel the day after tomorrow.這種用法通常帶有表示將來(lái)的時(shí)間狀語(yǔ),如果不帶時(shí)間狀語(yǔ),則根據(jù)上下文可表示最近即將發(fā)生的動(dòng)作。
A: Where are you going?
B: I am going for a walk.Are you coming with me?
A: Yes,I am just coming.Wait for me.課堂檢測(cè)
()1.There __________ a meeting tomorrow afternoon.A.will be going to
B.will going to be
C.is going to be
D.will go to be()2.Charlie ________ here next month.A.isn’t working B.doesn’t working
C.isn’t going to working D.won’t work
()3.He ________ very busy this week, he ________ free next week.A.will be;is
B.is;is
C.will be;will be
D.is;will be()4.There ________ a dolphin show in the zoo tomorrow evening.A.was
B.is going to have
C.will have
D.is going to be()5.–________ you ________ free tomorrow? – No.I ________ free the day after tomorrow.A.Are;going to;will
B.Are;going to be;will C.Are;going to;will be D.Are;going to be;will be()6.Mother ________ me a nice present on my next birthday.A.will gives
B.will give
C.gives
D.give()7.– Shall I buy a cup of tea for you? –________.(不,不要。)
A.No, you won’t.B.No, you aren’t.C.No, please don’t.D.No, please.()8.– Where is the morning paper? – I ________ if for you at once.A.get B.am getting C.to get
D.will get()9.________ a concert next Saturday?
A.There will be
B.Will there be C.There can be
D.There are()10.If they come, we ________ a meeting.A.have
B.will have C.had
D.would have()11.He ______ her a beautiful hat on her next birthday.A.gives B.gave C.will giving D.is going to giving()12.He ________ to us as soon as he gets there.A.writes
B.has written C.will write
D.wrote()13.He ________ in three days.A.coming back
B.came back C.will come back D.is going to coming back()14.If it _____ tomorrow, we’ll go roller-skating.A.isn’t rain
B.won’t rain C.doesn’t rain D.doesn’t fine
()15.– Will his parents go to see the Terra Cotta Warriors tomorrow?– No, ________(不去).A.they willn’t.B.they won’t.C.they aren’t.D.they don’t.()16.Who ________ we ________ swimming with tomorrow afternoon?
A.will;go
B.do;go C.will;going
D.shall;go()17.We ________ the work this way next time.A.do
B.will do C.going to do D.will doing()18.Tomorrow he ________ a kite in the open air first, and then ________ boating in the park.A.will fly;will go
B.will fly;goes C.is going to fly;will goes D.flies;will go()19.The day after tomorrow they ________ a volleyball match.A.will watching
B.watches C.is watching
D.is going to watch()20.There ________ a birthday party this Sunday.A.shall be B.will be
C.shall going to be
D.will going to be()21.They ________ an English evening next Sunday.A.are having
B.are going to have C.will having
D.is going to have()22.________ you ________ free next Sunday? A.Will;are
B.Will;be C.Do;be
D.Are;be()23.He ________ there at ten tomorrow morning.A.will
B.is C.will be
D.be()24.________ your brother ________ a magazine from the library?
A.Are;going to borrow
B.Is;going to borrow C.Will;borrows D.Are;going to borrows()25.– Shall I come again tomorrow afternoon?–________(好的).A.Yes, please
B.Yes, you will.C.No, please.D.No, you won’t.()26.It ________ the year of the horse next year.A.is going to be
B.is going to C.will be D.will is()27.________ open the window? A.Will you please
B.Please will you C.You please
D.Do you
()28.– Let’s go out to play football, shall we? – OK.I ________.A.will coming
B.be going to come C.come
D.am coming()29.It ________ us a long time to learn English well.A.takes
B.will take C.spends
D.will spend()30.The train ________ at 11.A.going to arrive
B.will be arrive C.is going to
D.is arriving
二、動(dòng)詞填空。
1.I ______(leave)in a minute.I ______(finish)all my work before I ______(leave).2.—How long _____ you _____(study)in our country? —I _____(plan)to be here for about one more year.—I _____(hope)to visit the other parts of your country.—What ______ you ______(do)after you ______(leave)here? —I ______(return)home and ______(get)a job.3.I ______(be)tired.I ______(go)to bed early tonight.4.Mary’s birthday is next Monday, her mother _____(give)her a present.5.It is very cold these days.It ______(snow)soon.6.—_____ you _____(be)here this Saturday? —No.I ______(visit)my teacher.7.—______ I ______(get)you a copy of today’s newspaper?
—Thank you.8.I am afraid there ______(be)a meeting this afternoon.I can’t join you.9.Mike ______(believe, not)this until he ______(see)it with his own eyes.10.Most of us don’t think their team ______(win).三、句型轉(zhuǎn)換。
1.People in the north often go skating in winter.(next winter)
2.There are two cinemas in that town.(next year)
3.He comes back late.(in two days)
4.She is a conductor of a train.(soon)
5.China is a modern and strong country.(in twenty years)
6.Do you study hard?(from now on)
四、把下列各句譯成英語(yǔ) 1.我叔叔今晚要來(lái)。
2.他沒(méi)有打算住那座小屋。
3.我們要讀這本書(shū)。
4.—你爸爸要去釣魚(yú)嗎?—不,他要去游泳。