第一篇:初三化學(xué)《元素》學(xué)案
初三化學(xué)《元素》學(xué)案
一教材分析、教材的地位和作用:本節(jié)內(nèi)容的學(xué)習(xí)是在學(xué)生掌握了水的組成、原子構(gòu)成的基礎(chǔ)上進(jìn)行的。通過(guò)本節(jié)的學(xué)習(xí),將引領(lǐng)學(xué)生把對(duì)物質(zhì)的宏觀組成和微觀構(gòu)成的認(rèn)識(shí)統(tǒng)一起來(lái),為今后學(xué)習(xí)化學(xué)式、化學(xué)方程式打下基礎(chǔ)。同時(shí)元素作為“雙基”知識(shí),是構(gòu)成學(xué)生化學(xué)素養(yǎng)的基本要素,是為學(xué)生的終身學(xué)習(xí)和將來(lái)適應(yīng)社會(huì)生活所必需的。因此,這部分知識(shí)對(duì)學(xué)生十分重要。
2、重點(diǎn)難點(diǎn):根據(jù)以上分析,我確定本節(jié)的學(xué)習(xí)重點(diǎn)是元素的概念,元素符號(hào)記憶與書寫。由于元素的概念較抽象,易跟原子混淆,我確定元素的概念為本節(jié)的學(xué)習(xí)難點(diǎn)。
二、教學(xué)目標(biāo)
根據(jù)初三學(xué)生的知識(shí)基礎(chǔ)、認(rèn)知水平和新標(biāo)的要求,我確定本時(shí)的教學(xué)目標(biāo)為:
⒈知識(shí)與技能
⑴初步掌握元素的概念,將對(duì)物質(zhì)的宏觀組成與微觀結(jié)構(gòu)的認(rèn)識(shí)統(tǒng)一起來(lái)。
⑵了解元素符號(hào)所表示的意義,學(xué)會(huì)元素符號(hào)的正確寫法,逐步記住一些常見(jiàn)的元素符號(hào)。
⒉過(guò)程與方法
通過(guò)探究學(xué)習(xí),聯(lián)系生活和地殼中元素知識(shí),加深對(duì)元素概念的理解,引導(dǎo)學(xué)生體驗(yàn)探究過(guò)程。
⒊情感態(tài)度與價(jià)值觀
⑴進(jìn)一步建立科學(xué)的物質(zhì)觀,增進(jìn)對(duì)物質(zhì)的宏觀組成與微觀構(gòu)成的認(rèn)識(shí)。
⑵發(fā)展善于合作,勤于思考,勇于實(shí)踐的科學(xué)精神,培養(yǎng)關(guān)心社會(huì),關(guān)心自然的情感和意識(shí)。
三、教學(xué)方法
基于對(duì)教材和學(xué)情的分析,結(jié)合學(xué)生的實(shí)際情況,我借助多媒體,采用了“自學(xué)輔導(dǎo),當(dāng)堂達(dá)標(biāo)”教學(xué)模式,以學(xué)為主,切實(shí)培養(yǎng)學(xué)生的學(xué)習(xí)能力。根據(jù)以學(xué)定教的原則,我確立了自主學(xué)習(xí),合作探究的學(xué)習(xí)方法,使學(xué)生在自學(xué)、探究、合作交流中獲得知識(shí),增長(zhǎng)能力。
四、教學(xué)過(guò)程
流程設(shè)計(jì):
先是簡(jiǎn)單導(dǎo)入、認(rèn)定目標(biāo),接下來(lái)我把本部分內(nèi)容分成兩個(gè)模塊進(jìn)行學(xué)習(xí):第一模塊是元素的概念,第二模塊是元素符號(hào)的書寫、記憶和意義。每個(gè)模塊一個(gè)小循環(huán),每個(gè)小循環(huán)都按自主探究—合作交流---精講點(diǎn)撥---鞏固應(yīng)用四個(gè)環(huán)節(jié)進(jìn)行的,最后是達(dá)標(biāo)測(cè)試,反思小結(jié)。
具體教學(xué)過(guò)程如下:
㈠情境導(dǎo)入
創(chuàng)設(shè)學(xué)習(xí)情境可以增強(qiáng)學(xué)習(xí)的針對(duì)性,有利于發(fā)揮情感在教學(xué)中的作用,激發(fā)學(xué)生的學(xué)習(xí)興趣。我是這樣導(dǎo)入新的:多媒體展示一杯水,水中有許多水分子,你能根據(jù)圖示,說(shuō)出水的宏觀組成和微觀構(gòu)成嗎?引導(dǎo)學(xué)生思考回答。
過(guò)渡:水中這許許多多的氫原子都屬于氫元素,許許多多的氧原子都屬于氧元素,那么,什么是元素?從而導(dǎo)入本節(jié)題。這樣從學(xué)生熟知的水和已有知識(shí)出發(fā)引入題,貼近學(xué)生生活,將大大激發(fā)學(xué)生學(xué)習(xí)元素知識(shí)的強(qiáng)烈愿望,增強(qiáng)學(xué)習(xí)的動(dòng)力。
認(rèn)定目標(biāo)
多媒體出示學(xué)習(xí)目標(biāo),學(xué)生默讀。使學(xué)生從總體上把握本節(jié)的學(xué)習(xí)目標(biāo),明確努力方向。
﹙三﹚堂達(dá)標(biāo)
下面我們進(jìn)入第一模塊的學(xué)習(xí)。
第二篇:課題2 化學(xué)元素與人體健康學(xué)案
人教版化學(xué)九年級(jí)下冊(cè)
第十二單元
課題2 化學(xué)元素與人體健康 學(xué)案
一、學(xué)習(xí)目標(biāo):
1.了解人體的元素組成,了解某些元素對(duì)人體健康的重要作用。2.了解人體中元素的存在形式,知道常量元素與微量元素。
二、自主探究: 知識(shí)點(diǎn)
1、人體內(nèi)的元素 【閱讀】課本P92內(nèi)容,1、人體內(nèi)元素有50多種,按含量多少分為 元素和 元素。水、糖類、蛋白質(zhì)、糖類、油脂、維生素提供的主要為 等幾種元素,其它元素則由 提供。知識(shí)點(diǎn)
2、一些元素對(duì)人體健康的影響
【閱讀】課本P93-P95實(shí)驗(yàn),了解一些元素對(duì)健康的影響,并填寫以下內(nèi)容:
2、鈣主要存在于骨骼和牙齒中,缺鈣容易導(dǎo)致、甚至骨折,所以要多吃 等食物,以攝取足夠量的鈣。
3、鐵是血紅蛋白的成分,缺鐵會(huì)引起 ;缺碘或碘過(guò)量會(huì)引起 ;缺氟易產(chǎn)生,過(guò)量會(huì)引起。
4、人體可以通過(guò) 食物補(bǔ)充鐵元素,食物補(bǔ)充碘元素。
5、對(duì)人體健康有害的元素為、、、等?!舅伎寂c交流】
6、人體內(nèi)鉛含量過(guò)高危害很大,對(duì)兒童生長(zhǎng)發(fā)育的影響更大。呼吸道、消化道和皮膚是鉛進(jìn)入人體的主要途徑。請(qǐng)舉例說(shuō)明哪些活動(dòng)容易引起兒童鉛中毒。
7、人體缺少必需微量元素會(huì)得病,因此有人認(rèn)為應(yīng)盡可能多吃含有這些元素的營(yíng)養(yǎng)補(bǔ)劑,你認(rèn)為這種想法對(duì)嗎?為什么? 【反思與小結(jié)】
三、自我測(cè)評(píng):
8、下列廣告語(yǔ)中,你認(rèn)為符合科學(xué)道理的是()
A.“超純水”“超純蒸餾水”絕對(duì)衛(wèi)生,對(duì)人體有益
B.本飲料由純天然物質(zhì)配制而成,絕對(duì)不含化學(xué)物質(zhì),對(duì)人體無(wú)害 C.含氟牙膏可以預(yù)防齲齒,說(shuō)明氟對(duì)人有利無(wú)害。D.含碘食鹽可防治甲狀腺腫大 人教版化學(xué)九年級(jí)下冊(cè)
第十二單元
9、有關(guān)人體的組成元素的說(shuō)法中錯(cuò)誤的是()
A.組成人體自身的元素約有50多種
B.人體內(nèi)的碳、氫、氧、氮四種元素主要以水、糖類、油脂、蛋白質(zhì)和維生素形式存在 C.人體內(nèi)含量較多的元素有11種
D.由于微量元素的含量非常少,因此,對(duì)人體健康的影響也很小 10、1989年世界衛(wèi)生組織把鋁確定為食品污染源之一,對(duì)在食品中的應(yīng)用加以限制。按照這一要求鋁在下列應(yīng)用中應(yīng)加以控制的是()
①鋁合金 ②制電線 ③制炊具 ④銀色漆顏料 ⑤用明礬凈化飲用水 ⑥明礬與小蘇打制食品膨松劑 ⑦飲料易拉罐 ⑧用氫氧化鋁凝膠制胃舒平藥品 ⑨包裝糖果和小食品
A.①③⑤⑧⑨
C.①②③⑤⑦
B.②④⑤⑧⑨ D.③⑤⑥⑦⑧⑨
11、人們每天通過(guò)攝取食物不斷補(bǔ)充所需要的各種元素,但有時(shí)也會(huì)攝入某些有害的元素,對(duì)下列礦物元素進(jìn)行分類。
①鎘 ②鉀 ③鐵 ④鈣 ⑤汞 ⑥碘 ⑦鉛 ⑧鎂 ⑨硒 ⑩鋅(1)人體中必需的微量元素 ;(2)對(duì)人體有害的微量元素。
12、化學(xué)與人體健康密切相關(guān),若人體血液缺鐵,就會(huì)“貧血”;人體缺鈣,會(huì)患佝僂病;缺碘會(huì)引起甲狀腺腫大;缺氟易產(chǎn)生齲齒;缺鋅會(huì)引起食欲不振等。
(1)市場(chǎng)有“樸雪(補(bǔ)血)口服液”、“高鈣牛奶”、“加碘食鹽”、“加氟牙膏”、“葡萄糖酸鋅”等商品,這些鐵、鈣、碘、氟、鋅應(yīng)理解為(填寫編號(hào))。①元素 ②原子 ③分子 ④氧化物
(2)市售麥片中含有微量極細(xì)的還原鐵粉,飲用這種麥片后,鐵在胃液中變?yōu)閬嗚F鹽的化學(xué)方程式為。
(3)市售AD營(yíng)養(yǎng)布丁的配料為:①蔗糖、②奶粉、③乳酸鈣、④檸檬酸、⑤維生素A、⑥維生素D、⑦食用色素、⑧食用香料、⑨防腐劑。其中屬于營(yíng)養(yǎng)素的有(填寫編號(hào))。
13、可溶性鋇鹽、汞鹽、鉛鹽等重金屬鹽均能使蛋白質(zhì)變性而失去生理活性,從而使人中毒。
(1)在硫酸銅、硝酸銀、硝酸鋇、氯化銀4種物質(zhì)中,無(wú)毒的是。
(2)醫(yī)療上常用硫酸鋇作X射線透視腸胃的內(nèi)服藥劑,俗稱“鋇餐”。能否用碳酸鋇代替硫酸鋇?為什么?
(3)若誤食可溶性鋇鹽,應(yīng)如何解毒?
第三篇:化學(xué)元素周期表
元素周期表的拼音
qīng氫 hài氦 lǐ鋰 pí鈹 p?ng硼 tàn碳 dàn氮 yǎng氧 fú氟 nǎi氖 nà鈉 měi鎂 lǚ鋁 guī硅 lín磷 liú硫 lǜ氯 yà氬 jiǎ鉀 gài鈣 kàng鈧 tài鈦 fán釩 ga鉻 měng錳 tiě鐵 gǔ鈷 nia鎳 t?ng銅 xīn鋅 jiā鎵 zhě鍺 shēn砷 xī硒 xiù溴 ka氪 rú銣 sī鍶 yǐ釔 gào鋯 ní鈮 mù鉬 d?锝 liǎo釕 lǎo銠 pá鈀 yín銀 g?鎘 yīn銦 xī錫 tī銻 dì碲 diǎn碘 xiān氙 sa銫 bai鋇 lán鑭 shì鈰 cu?錯(cuò) nǚ釹 pǒ钷 shān釤 yǒu銪 gá釓 ta鋱 dí鏑 huǒ鈥 ěr鉺 diū銩 yì鐿 lǔ镥 hā鉿 tǎn鉭 wū鎢 lái錸 ?鋨 yī銥 b?鉑 jīn金 gǒng汞 tā鉈 qiān鉛 bì鉍 pō釙 ài砹 dōng氡 fāng鈁 l?i鐳 ā錒 tǔ釷 pú鏷 y?u鈾 ná镎 bù钚 m?i镅 jū鋦p?i锫 kāi锎 āi锿 fai鐨 m?n鍆 nu?锘 láo鐒
第四篇:初三數(shù)學(xué)課學(xué)案設(shè)計(jì)
你如果認(rèn)識(shí)從前的我,也許會(huì)原諒現(xiàn)在的我。初三數(shù)學(xué)課學(xué)案設(shè)計(jì)反思
在學(xué)案設(shè)計(jì)中我會(huì)從以下幾方面進(jìn)行解釋:
首先是在學(xué)習(xí)目標(biāo)部分
由以前教案的教學(xué)目標(biāo)改為了學(xué)習(xí)目標(biāo)
僅僅是兩個(gè)字的改變目的是讓學(xué)生明白這部分和他們是有必要的聯(lián)系的 是這張學(xué)案學(xué)習(xí)前必須要看的 可能學(xué)生在最開(kāi)始并不注意這一點(diǎn) 拿到學(xué)案后直接去做題
所以作為老師要提醒學(xué)生這部分的作用 提醒學(xué)生必須要看
讓學(xué)生在進(jìn)入學(xué)案前知道自己用這份學(xué)案的目標(biāo) 學(xué)習(xí)過(guò)程中的方法 和對(duì)知識(shí)點(diǎn)的掌握程度
下面的部分是學(xué)習(xí)準(zhǔn)備部分 學(xué)生對(duì)數(shù)學(xué)一直以來(lái)是這樣認(rèn)識(shí)的 回家后會(huì)背背語(yǔ)文課文 背背英語(yǔ)單詞
但從來(lái)不會(huì)拿出數(shù)學(xué)書來(lái)記記定理和公式 都認(rèn)為在課上都已經(jīng)把那些記的很熟練了 其實(shí)并不是
所以設(shè)計(jì)這個(gè)環(huán)節(jié)讓學(xué)生在課間時(shí)間就可以完成
即便是學(xué)生去翻翻書找到答案也是可以達(dá)到學(xué)生復(fù)習(xí)概念的目的的 也可以起到使上課前的學(xué)生馬上進(jìn)入課堂的銜接作用
重點(diǎn)想說(shuō)的是下面這個(gè)猜想環(huán)節(jié) 課堂的氣氛是如何來(lái)調(diào)動(dòng)的 這部分可能會(huì)起到作用
在環(huán)節(jié)的設(shè)計(jì)上要多用提問(wèn)性或判斷性的語(yǔ)言
而這部分恰恰是學(xué)生在學(xué)完這節(jié)課后完全可以達(dá)到的 先讓學(xué)生去猜測(cè)
在爭(zhēng)論的過(guò)程中讓學(xué)生產(chǎn)生想知道誰(shuí)對(duì)誰(shuí)錯(cuò)的心理 從而使學(xué)生會(huì)用心去聽(tīng)下面的重要環(huán)節(jié) 但在設(shè)計(jì)時(shí)千萬(wàn)不要忘了
在課結(jié)束前要對(duì)這部分進(jìn)行反饋
在反饋過(guò)程中讓學(xué)生用本節(jié)課知識(shí)說(shuō)明剛才說(shuō)對(duì)或說(shuō)錯(cuò)的原因 這樣的作用是讓學(xué)生知道知識(shí)應(yīng)如何去用 還可以讓學(xué)生知道要想在開(kāi)始就說(shuō)對(duì)問(wèn)題 那方法來(lái)說(shuō)只有一個(gè) 那就是預(yù)習(xí)
在幾何證明的部分 一道題往往可以有幾種辦法 即使是在證明定理的過(guò)程中
有時(shí)為了趕時(shí)間可能這部分就簡(jiǎn)單過(guò)了
但是學(xué)生會(huì)對(duì)定理的使用上產(chǎn)生很生疏的感覺(jué) 也難怪這樣
本身對(duì)定理是怎么來(lái)的就一知半解
還要用這個(gè)定理去解答相關(guān)知識(shí)又談何容易呢!所以在這部分上 用學(xué)生探究的方法 讓學(xué)生多去說(shuō) 多去找方法
讓他們感覺(jué)這些定理是通過(guò)他們的努力得到的 那想忘掉可能就會(huì)難一些了
在探究過(guò)程中多用動(dòng)態(tài)演示 可以使學(xué)生產(chǎn)生新鮮感和動(dòng)態(tài)感 也能更加直觀的去理解變化過(guò)程
從動(dòng)態(tài)中尋求不變是解決數(shù)學(xué)題的重點(diǎn) 從平時(shí)就對(duì)學(xué)生加以訓(xùn)練
使學(xué)生在面對(duì)問(wèn)題時(shí)才會(huì)感覺(jué)不陌生 也能找到解決相關(guān)題的著手點(diǎn)
為初三解決動(dòng)態(tài)的題奠定一定的基礎(chǔ)
在例題講解這個(gè)環(huán)節(jié)
我們對(duì)立體進(jìn)行了較精心的選擇和處理 針對(duì)我們的孩子綜合運(yùn)用能力較弱的特點(diǎn) 我們對(duì)例題的提問(wèn)采用了層層遞進(jìn)的設(shè)問(wèn)形式 將重點(diǎn)和難點(diǎn)進(jìn)行分解
逐步培養(yǎng)學(xué)生的分析能力和綜合運(yùn)用能力 比如在例1中
如果讓學(xué)生直接去求四邊形的周長(zhǎng) 很多學(xué)生可能會(huì)覺(jué)得無(wú)法下手
或者覺(jué)得題目中只給出了一條邊的長(zhǎng)度條件不夠 通過(guò)第一個(gè)問(wèn)題的設(shè)置
引導(dǎo)學(xué)生先根據(jù)條件判斷四邊形的形狀
利用菱形四邊相等的特殊性來(lái)求周長(zhǎng)就比較簡(jiǎn)單了 這樣一來(lái)
既能夠運(yùn)用到今天所學(xué)的菱形的判定定理
也能夠幫助學(xué)生在面對(duì)問(wèn)題的時(shí)候怎樣去尋求思路 在第二個(gè)例題中設(shè)計(jì)的問(wèn)題依舊采用了同樣的方法
但是又涉及到勾股定理的逆定理和菱形的面積這兩個(gè)很重要的知識(shí)點(diǎn) 這樣使前面學(xué)到的知識(shí)在新課中得到反復(fù)和鞏固 加深了新舊知識(shí)間的聯(lián)系 形成較完整的知識(shí)體系
以上是我對(duì)使用學(xué)案的一些簡(jiǎn)單想法 但是也存在著一些疑惑
比如說(shuō)學(xué)生對(duì)知識(shí)點(diǎn)的落實(shí)應(yīng)如何去抓 現(xiàn)在想到的粗略方法是:學(xué)案收上來(lái)之后 對(duì)學(xué)生所填的定理進(jìn)行檢測(cè)
其次學(xué)案上的練習(xí)題應(yīng)進(jìn)行同類型的復(fù)測(cè) 看學(xué)生是否真正能夠利用所學(xué)知識(shí)進(jìn)行解題
并對(duì)基礎(chǔ)較差的學(xué)生在課下進(jìn)行一對(duì)一的講解和反復(fù)練習(xí)
第五篇:初三英語(yǔ)復(fù)習(xí)學(xué)案
2013年初三英語(yǔ)復(fù)習(xí)學(xué)案
中考英語(yǔ)作文九個(gè)話題:
一、寫人(自己、家庭、朋友、老師、個(gè)人變化、個(gè)人感受等)
二、介紹地點(diǎn)(介紹風(fēng)景名勝、旅游等)
三、校園生活(春游、校規(guī)、科目、學(xué)習(xí)方法,學(xué)習(xí)困難,同學(xué)之間的關(guān)系,高興或傷心之事 的經(jīng)歷,等)
四、課外生活(家庭生活、家務(wù)勞動(dòng)、個(gè)人愛(ài)好,與父母之間的關(guān)系,高興或傷心之事的經(jīng) 歷等)
五、假期安排(未來(lái)計(jì)劃、過(guò)去經(jīng)歷等)
六、節(jié)假日活動(dòng)(志愿者活動(dòng)、過(guò)去經(jīng)歷的事)
七、健康(疾病、食品健康等)
八、個(gè)人觀點(diǎn)建議(提建議、勸告,感謝,對(duì)某事的評(píng)論,等)
九、社會(huì)熱點(diǎn)問(wèn)題(節(jié)約、環(huán)境、故鄉(xiāng)變化,城鎮(zhèn)化,留守兒童,安全,網(wǎng)上購(gòu)物,中學(xué)生使用手機(jī)等,)
格式與體裁
1.書信、電子郵件2.記敘文3.議論文和說(shuō)明文 4.應(yīng)用文5.演講稿6.日記7.留言、請(qǐng)假條等
常見(jiàn)的英語(yǔ)作文類型寫作模式: 1書信、電子郵件型 Dear..., I’m glad to receive your letter......________________________________ _________________________________________ Best wishes!
Yours,(sincerely/truly)Lucy a書信開(kāi)頭常用語(yǔ)
1)I am very glad to hear form you.收到你的信很高興。2)Hello, Jane.How is it going?(你好)3)I’m writing to you for some advice on how to…我寫信想征求關(guān)于??的建議
4)I’m writing to ask if you can...我寫信是想問(wèn)一下你是否能??
5)How time flies!It has been months since we last met.時(shí)間過(guò)的真快,從上次見(jiàn)面已幾個(gè)月了
6)Thank you for inviting me to ?.謝謝你邀請(qǐng)我?? b 書信結(jié)尾常用語(yǔ)
Best wishes(to you).祝萬(wàn)事如意 Wish you good luck.祝好運(yùn)
I am looking forward to hearing from/seeing you soon.盼望不久收到你的信/見(jiàn)到你。圖表、數(shù)字比例型
(提出討論或調(diào)查的事實(shí))Last week, our class had a class meeting on(how to)? Here are the results.上周,我們班開(kāi)了一次班會(huì),討論關(guān)于??的事,下面是討論的結(jié)果。(表達(dá)不同觀點(diǎn))Most students think ? While ? 20% of them choose to?.Another 15 believe? There are also some? saying that?(表達(dá)個(gè)人看法)As for me, I agree to… 3 說(shuō)明利弊型
Nowadays(現(xiàn)在,當(dāng)今)? is becoming more and more popular.It has many advantages.First, 優(yōu)點(diǎn)1? ,Second, 優(yōu)點(diǎn)2…Besides,...However, It also brings us bad influences.On the one hand, 缺點(diǎn)1? On the other hand, 缺點(diǎn) In my opinion,個(gè)人觀點(diǎn) ? 不同觀點(diǎn)型
We made a survey about whether we should ?提出矛盾問(wèn)題.Different people hold different ideas.Some believe …正方觀點(diǎn).First, 原因1? Besides, 原因2…
While others don’t agree.They think?反方觀點(diǎn).On the one hand, 原因1? On the other hand, 原因2…
As for me,個(gè)人觀點(diǎn) ? 5 解決問(wèn)題型
Recently, the ? problem has been more and more serious.?should do something to solve it.(提出問(wèn)題需要解決)
First, 方法1? Second, 方法2? Third, 方法3?Finally, 方法4…(闡明解決方法)I am sure if everyone can make a contribution to ?, the ? will become better and better.(總 結(jié))
巧用連接詞,賦予語(yǔ)言靈氣 比較下面幾個(gè)句子:
1.I played football on the playground.I fell down and hurt my legs.(good)
When I was playing football on the playground, I fell down and hurt my legs.(better)
2.We are good friends.We should help each other.(good)
We are good friends and we should help each other.(better)
As we are good friends, we should help each other.(best)
3.I was deeply moved(感動(dòng))and I couldn’t say a word.(good)
I was too moved to say a word.(better)
記住下面的連接詞和詞組,你的作文就有文采了!
按事情發(fā)展的先后或時(shí)間順序
1)First, then/next, after that/ next, finally 2)soon, suddenly, as soon as, from now on, at the same time, not...until, when , while, during 表示舉例 for example,such as 表示遞進(jìn)besides(另外)/ what’s more(更重要的是)/ what’s worse(更糟糕的是)Luckily/unluckily/unfortunately…
表示轉(zhuǎn)折 however, but,though, instead of 表示原因 thanks to, because of,because 表示結(jié)果 as a result(of), so...that, such...that, 表目的 so that?;in order that?;in order to?;表比較 the same as, than, be different from 表示并列not only...but also, both...and, either...or, neither...nor,on the one hand?on the other hand
表示對(duì)比:while;;prefer…to…;would rather do…than do…;表示總結(jié): in a word;(總而言之,一句話)表示利弊:be good/bad for ….;?have great/much influence on 表示喜愛(ài):love/like/enjoy?;be interested in?;;be good at;作文萬(wàn)能句式 開(kāi)頭經(jīng)典句型:
1).As we all know,...becomes more and more....2)Many people say that....But I don’t think so 3)I will never forget the...結(jié)尾經(jīng)典句型:
1)At last/ Finally/in the end...最后 2)I believe if we can...,...will be....3)What a...!/ How...!4)I will work hard to make my dream come true.我要努力實(shí)現(xiàn)我的夢(mèng)想 5)I hope your dream will come true one day.我希望你的夢(mèng)想會(huì)實(shí)現(xiàn)
6)In a word,...總而言之 7)In short,...簡(jiǎn)言之 8)We hope that··· 我們希望 9)Let’s try our best to....作文萬(wàn)能詞組
1.It takes sb.+時(shí)間+to do…花費(fèi)某人多少時(shí)間做某事
2.Sb.spend+時(shí)間/錢+on sth./(in)doing sth.某人話時(shí)間/錢買某物/做某事 3.It’s important/necessary/useful/useless/common?(for sb.)to do…對(duì)某人來(lái)說(shuō)做某事是重要的/必要的/有用的/無(wú)用的/常見(jiàn)的??
4.It’s nice/kind of sb.to do...某人做某事是?? 5.It’s time for sb.to do sth.是做某事的時(shí)候了
6.Great changes have taken place in…發(fā)生了巨大變化
7.It seems/seemed that…好像是
8.It is said /reported/believed that…據(jù)說(shuō)/據(jù)報(bào)道/大家都相信?? 9.I have made up my mind to …我已下決心?? 10.I am sure that…我確信??
11.I am not sure whether/if…我不確信是否?? 12.too + adj./adv.to do太??而不能
13.I would rather do….than do…我寧愿做??不愿做?? 14.Thank you for v-ing.為??感謝
15.If everyone can make a contribution to the earth/ nature/ society, our life will be better and better.如果大家都對(duì)??做出貢獻(xiàn),我們的生活將會(huì)越來(lái)越好 16.be/get used to(doing)sth.習(xí)慣于做某事 17.learn from…向??學(xué)習(xí)
18.be proud of/ take pride in…以??感到自豪 19.agree with sb.同意某人 20.with the help of sb.=with one’s help(反義:without one’s help)在某人的幫助下 21.pay attention to doing…注意 22.take good care of …照顧好
23.make friends with…和??交朋友
24.get on/along well with …與??相處的好 25.wish you success 祝你成功 26.as time goes by…隨著時(shí)間的流失 27.graduate from…從??畢業(yè)
28.looking back to the past three years,…(用現(xiàn)在完成時(shí)態(tài))回顧過(guò)去的三年 29.make up one’ mind to do sth.(on sth.)下決心做某事 30.make a decision to do下決心做某事 31.work hard at English 努力學(xué)英語(yǔ) 32.from then on 從那時(shí)起 33.in the future在將來(lái) 34.in fact實(shí)際上 35.at first首先
36.have trouble/difficulty in(doing)sth.做某事有困難37.have experience in(doing)sth.有做某事的經(jīng)驗(yàn) 38.follow one’s advice/suggestions 按照某人的建議 39.ask sb.for help向某人尋求幫助 40.can’t wait to do迫不及待
41.be supposed to do應(yīng)該做,被要求做 42.encourage sb.to do 鼓勵(lì)某人做 43.deal/do with …處理
44.work out/solve the problems解決問(wèn)題 45.come up with good ideas想出好主意
46.be surprised at sth.(to do sth.)對(duì)??感到驚訝 47.in order to 為了 48.keep healthy/fit 保持健康
49.a good way to do…做某事的好方法 50.keep(on)doing…堅(jiān)持做某事 51.worry about…/ be worried about…擔(dān)心某事 52.in one’s spare/free time 在某人的空閑時(shí)間 53.be kind/friendly to對(duì)??好 54.be strict with sb對(duì)??嚴(yán)格 55.help others幫助別人
56.have fun/enjoy oneself/have a good time玩的高興 57.plenty of 大量的 58.be popular with…受歡迎 59.share sth.with sb.和??分享
60.know little/much about …對(duì)??了解少/多 61.do/try one’s best to do…盡力 62.be/feel sorry for…感到遺憾
63.help sb.(to)do sth./ with sth.幫助某人 64.teach sb.to do sth.教某人做某事 65.raise money募捐
66.have an influence on對(duì)??有影響 67.pass the exam 考及格
如果你寫英語(yǔ)作文還感到有點(diǎn)難,背誦積累一些好句子是快速提高的好方法。要有把握寫會(huì)!
中考英語(yǔ)書面表達(dá)經(jīng)典句子積累
寫
人
1、He is tall and strong.He has short / long hair.He often wears a pair of glasses.他高大強(qiáng)壯,有著短(長(zhǎng))發(fā),戴眼鏡。
2、He/ She is outgoing / easygoing / funny / active / lovely / smart / creative.他/她外向(隨和、風(fēng)趣、活躍、可愛(ài)、聰明、有創(chuàng)造力)。
3.He/She is a bright and lively boy/girl.He/She is popular with everyone.He/She is polite to others.他/她聰明活潑,受人歡迎,對(duì)人禮貌。
4、I want to be an artist / a scientist / a musician in the future.我將來(lái)想成為一名藝術(shù)家(科學(xué)家、音樂(lè)家)
5、I like reading, chatting with friends and flying kites.我喜歡看書、聊天和放風(fēng)箏。6.I take an active part in sports.I am interested in soccer / basketball.我積極參加運(yùn)動(dòng),對(duì)足球(籃球)感興趣。
7.I have lots of hobbies , especially I am good at English and drawing.我有很多愛(ài)好,尤其擅長(zhǎng)英語(yǔ)和畫畫。
8、We get along well with each other.我們彼此相處融洽。
9、I am friendly to others.I am ready to help others.我對(duì)人友好,樂(lè)于助人。
10、I am strict with myself.I am hard-working.我對(duì)自己要求嚴(yán)格,學(xué)習(xí)勤奮。
愛(ài)好與學(xué)習(xí)
1.I have so much homework to do that I can’t find any time for my hobbies.2.I have a lot of hobbies like singing, reading, playing basketball and so on.3.My hobbies make me feel relaxed and make my life more colorful.4.I am not allowed to watch TV, surf the Internet or listen to my favourite music.5.I have difficulty studying Math./ I am not good at … 6.I hope you can give me some useful advice.7.I often stay up late doing my homework and feel sleepy in class.8.I don’t have enough time to do my own things..9.Some students will tell their teachers or parents about their problems 10.I think we’d better ask our teachers, parents and friends for help when we are in trouble.11.I failed in the last exam, I feel so stressed.12.If I try my best to study , I will do it better.13.we’ll be too nervous to work well in the exam 與父母的溝通
1.My parents don’t think it is necessary for me to spend much time on my hobbies.2.2.They think spending time on hobbies will have a bad influence on my study.3.If you have different ideas , you can tell her what you are thinking about and listen to hers.4.4.If she doesn't take your advice , just keep silent and give her a smile.好友、親情與感恩
1.I am very thankful to my friend xxx 2.Thanks to their help/ with their help , I have made much progress in the past three years.3.They helped me with my studies 4.They will always tell me what to do when I am in trouble.5.They won’t go to bed until I finish my homework in the night.6.We always help each other.7.Thank you for teaching us so well, I have learnt a lot from you.8.Though sometimes we made you angry , you always help us with our studies.9.you are one of the best teachers in my heart, you can always make your class lively.10.you give us good advice , you are not only my teacher but also my best friends.推薦信
1.He is tall and strong, he always has short hair , he likes wearing white T-shirt.2.He is helpful(generous kind confident creative organized…)3.He has many hobbies, like swimming ….4.He is always willing to help others.運(yùn)動(dòng)與健康
1、It’s easy to have a healthy lifestyle.有一個(gè)健康的生活方式是容易的。1.It’s important to sleep eight hours a night.每晚 8 個(gè)小時(shí)的睡眠是重要的。2.It’s important to eat a balanced diet.飲食均衡是重要的。3.You should exercise to stay fit.你應(yīng)該通過(guò)鍛煉來(lái)保持健康。
4.You should eat fruit and vegetables and drink lots of water.你應(yīng)該吃水果蔬菜并喝大量的水。5.You should also listen to music to relax.你也應(yīng)該聽(tīng)音樂(lè)放松。6.You shouldn’t stay up.你不應(yīng)該熬夜。7.Don’t get stressed out.不要有壓力。
8.You’re easy to be ill if you eat too much junk food.吃太多的垃圾食品容易生病。
9.I like sports , such as swimming, jogging(慢跑), playing basketball.10.My favourite sport is …./ I like ….best / I enjoy/like playing basketball.11.We should do some exercise every day..12.Doing sports every day can make us healthy and strong.13.Some students go to school without breakfast, as a result, they often feel hungry in class and can’t listen to the teachers carefully.14.I think it’s good for our health.15.Do sports make us strong and keep us energetic , so we can have more energy to study hard.環(huán)境與城市變化
1.Great changes have taken place in our city in the past 10 years.2.Our city used to be small and it wasn’t as beautiful as it is now.3.There were only several streets in our city, but now there are so many wide streets and there are so many modern shops.4.In the past , people lived in small , low houses.Now most of us have lived in bright flats in tall buildings.5.People used to go out by bike or by bus , but now more and more people have their own cars.6.There are some beautiful parks in our city.We have planted more and more flowers and trees in the city.7.We mustn’t break the traffic rules and talk loudly in public.8.We can pick up the litter and keep the environment clean.9.In order to live a better life, something must be done to stop the pollution.10.It’s a good idea for us to go to school by bus or by bike.節(jié)約與環(huán)保
1.It's our duty to protect our environment.保護(hù)環(huán)境是我們的責(zé)任。
2.It is really important to take care of our environment愛(ài)護(hù)環(huán)境確實(shí)重要
3.We should plant more trees我們應(yīng)該多植樹(shù)
4.We shouldn’t waste our food.我們不應(yīng)該浪費(fèi)食物
5.We should save electricity ,we’d better turn off lights if we leave a room 我們應(yīng)該節(jié)約用電,當(dāng)離開(kāi)房間的時(shí)候,最好把燈關(guān)上。
6.Saving water is also important.節(jié)約用水也很重要。7.We should turn off the shower while we are washing hair 洗頭發(fā)時(shí)應(yīng)該把淋浴器關(guān)上 8.We should take our own bags when we go shopping購(gòu)物是應(yīng)該帶自己的包 9.People should stop riding in cars and start riding bikes 人們應(yīng)該停止開(kāi)小轎車,騎自行車
10.We can also recycle books and paper我們還可以回收書本和紙張。
11.We shouldn't use paper towels or napkins so that we can stop more trees from being cut down.我們不應(yīng)該使用紙巾和餐巾紙,以便阻止更多的樹(shù)木被砍伐
12.If everyone cares about protecting the environment, the world will become much more beautiful 如果大家都能來(lái)關(guān)心保護(hù)環(huán)境,我們的世界將會(huì)更美好。13.I suggest we should recycle books and paper.14.We’d better not use the plastic bags any more, and use less paper and water.15.When we go out , we’d better take a bus , ride a bike or even just walk.慈善活動(dòng)
1.I want to be a volunteer to help those who need help.2.I want to raise some money for / donate some money to the poor children in the poor areas
用手機(jī)的問(wèn)題
1.Many parents allow their children to use mobile phones.2.The mobile phones play an important part in our daily life.3.They also have a bad influence on us.4.They think it is bad for students to bring a mobile phone.Because the students will use mobile phones to play games, sent messages, watch movies, etc.如何度過(guò)節(jié)假日
1.Learning and relaxing are very important to us during the summer holiday 2.We often help our parents do some housework.3.I like to do some reading when I am free on Sunday.4.I will do some exercise during summer holiday.And I will have more time for my hobbies.5.I can surf the Internet or watch TV, at night , I can watch TV plays with my parents.6.I will have a trip to the mountains or to the sea , I want to enjoy the beauty of the nature.學(xué)校和校園生活
1.There are many flowers in my school , it looks like a beautiful garden.2.I hope our school can have a big library and it has a lot of nice book or magazines in it.3.I hope our school can organize more after-class activities , and we can have more time for sports,art or music.4.I suggest our school should have fewer exams.5.I hope our teachers will be our friends and make our class more lively , then we will be more interested in studying.參觀旅游
1、We’ll meet at the school gate at 8 am on Sunday.星期六早上 8 點(diǎn)在校門口集中。
2、I’ll show you around some places of interest.我?guī)銋⒂^名勝古跡。
3、Don’t take photos.We mustn’t talk loudly.不準(zhǔn)拍照,禁止大聲喧嘩。
4、We’ll go there by bus / on foot.乘車(步行)前往。
5、Remember to get ready for everything.動(dòng)身前準(zhǔn)備好一切物品。
6、It’s better to take an umbrella / a pen and notebook with us.最好帶一把雨傘(筆和筆記本)
7、Be on time.Don’t be late.要守時(shí),不要遲到。
8、We should take our own foods and drinks.自備食物和飲料。
9、I hope everyone will have a great time / have fun / enjoy yourselves.I wish you a good trip.祝大家玩得開(kāi)心,旅途愉快
10、I plan to go hiking / swimming / fishing / boating / bike riding.我準(zhǔn)備去爬山(游泳、釣魚(yú)、劃船、騎自行車)。
安全
1、Don’t stay too late outside at night.夜間不要在外逗留得太晚。
Don’t go anywhere alone without permission.未經(jīng)許可不要獨(dú)自去任何地方。
2、You’re easy to have an accident if you cross the road in a hurry.慌慌張張過(guò)馬路容易發(fā)生事故。
3、Be careful when getting on and getting off the bus.Don’t push others.上、下車時(shí)注意安全,不要推擠。
4、Be careful on the way to school.Be sure to look at the traffic lights when crossing the road.上學(xué)的路上注意安全,過(guò)馬路時(shí)要看紅綠燈。
5、We should help each other when we’re in trouble.遇到麻煩時(shí)應(yīng)互相幫助。表達(dá)自己觀點(diǎn)的句型:
1.I(don’t)think it’s a good idea/ necessary for us to do…./ it’s good / helpful / wrong of us to do… 2.If we can…., we will / it will ….3.I hope / believe ….can do …
書面表達(dá)要求
1.短文應(yīng)包括提示的所有要點(diǎn),可適當(dāng)發(fā)揮,但不要逐條翻譯;
2.要用自己最有把握的詞匯和句型寫,寫完要查單詞拼寫、詞組、句型、語(yǔ)法上有無(wú)錯(cuò)誤。3.遇到實(shí)在想不起來(lái)的詞匯,用同義句表達(dá)。4.語(yǔ)句通順、意思連貫;
5.不得透露學(xué)校、姓名等任何個(gè)人信息。
6.詞數(shù)80左右,不少于70詞,不多于100詞。
7.不能使用其他顏色筆、修正液等可被視為標(biāo)記的工具修改。