廣州七年級(jí)下新版英語(yǔ)Unit4SaveTheTrees

1、Unit 4 Save The Trees必會(huì)重點(diǎn)短語(yǔ)和詞匯單詞拯救松樹(shù)討論樹(shù)枝根與作斗爭(zhēng)反對(duì)例子有害的氣體產(chǎn)生；生產(chǎn)氧氣主要的方便的家具想象；設(shè)想疾病挖洞搬；扛；背容器短語(yǔ)吸收來(lái)自確切地說(shuō)例如環(huán)顧四周由制成大量的；數(shù)以百萬(wàn)計(jì)的 對(duì)有好處，有用重點(diǎn)詞匯及辨析discuss v. 討論 discussing; discussed; discussed【必會(huì)考點(diǎn)】discuss v.討論 后接名詞、動(dòng)名詞或when, whether, what等引導(dǎo)的從句，但不可接that從句。 They are discussing what to do next. 他們正在討論接下來(lái)要做的事情?！局R(shí)拓展】d

2、iscussion n.討論2. a不定冠詞，意為 匕（個(gè)、臺(tái)一） 【必會(huì)考點(diǎn)】第一次提到某人或某物時(shí)，用不定冠詞。There is a dog sitting on the ground. 刃叼 L 有只狗坐在地上。不定冠詞和可數(shù)名詞連用時(shí)，可泛指某一類(lèi)中的任何一個(gè)。A horse runs fast.馬跑得很快。不定冠詞表示”的數(shù)量，但數(shù)的概念沒(méi)有one強(qiáng)烈。The teacher entered the classroom with a book.老師帶著本書(shū)走進(jìn)了 教室【知識(shí)拓展】用在表示時(shí)間、重量、速度、價(jià)格等名詞前，意為每一”He takes exercise a day. 他每天

3、做運(yùn)動(dòng)。fight v. 斗爭(zhēng)， 打架 fighting; fought; fought【必會(huì)考點(diǎn)】fight with / against與作斗爭(zhēng)；與打架Yesterday he fought bravely with the thief.昨天他勇敢地和小偷作斗爭(zhēng)?！局R(shí)拓展】against為介詞，還可意為遠(yuǎn)背，遠(yuǎn)抗；緊靠；防備 ”P(pán)eople hold umbrellas against rain. 人們撐著傘擋雨。take v.拿，拿著 taking; took; taken【必會(huì)考點(diǎn)】take in吸收The village is a good place for people to

4、take in fresh air.這個(gè)村莊是一個(gè)讓人們呼吸新鮮空氣的好地方。take back拿回；收回（錯(cuò)話或錯(cuò)誤的想法）I forgot to take back the luggage I left here.我忘了 拿回留在這的行李了。take care （of） 照顧Take care of yourself when you are on vacation.度假時(shí)好好照顧你自己。take off脫下；起飛The plane is taking off.飛機(jī)馬上就要起飛了?！局R(shí)拓展】take on呈現(xiàn)，具有The city takes on a new appearance in

5、 recent years.這個(gè)城市最近幾年呈現(xiàn)出種新的面貌。take up占有，占據(jù)I am sorry for taking up too much of your time.很抱歉占用了你這么多時(shí)間。take over接管，接收I will take over the company one day.總有一天我會(huì)接管這家公司。take away 拿走Take away the glasses and the tray. 把這些玻璃杯和托盤(pán)拿走。 take out 拿出The robber made him take out money.那個(gè)強(qiáng)盜讓他把錢(qián)拿出來(lái)。produce v. 生產(chǎn)，

6、產(chǎn)生 producing; produced; produced 【必會(huì)考點(diǎn)】produce v. 生產(chǎn)，產(chǎn)生The factory produces many kinds of toys.這個(gè)工廠生產(chǎn)彳艮多種類(lèi)的玩具?！局R(shí)拓展】product n.產(chǎn)品Try to get the best product at the lowest price.盡力以最低的價(jià)格買(mǎi)到最好的產(chǎn)品。production n.生產(chǎn)；產(chǎn)品We needed to increase the volume of production.我們必須增力口產(chǎn)量。productive adj.生產(chǎn)的；多產(chǎn)的，富有成效的More

7、productive farmers have been able to provide cheaper food.生產(chǎn)力更高的農(nóng)民們已能提供更便宜的食品。look v.看，看著 looking; looked; looked【必會(huì)考點(diǎn)】look for 尋找He is looking for his keys.他正在找他的鑰匙。look after 照顧You should look after your sick mother instead of going out to play.你應(yīng)該照顧你生病的媽媽?zhuān)皇浅鋈ネ?。look around環(huán)顧四周He looked around to

8、 make sure he was safe. 他環(huán)顧四周，確保他是否安全。look at看著The children looked at their new teacher in curiosity.孩子們好奇地望著新老師。【知識(shí)拓展】look up抬頭看，查閱You can look up the dictionary if you don t know the word.如果你不認(rèn)識(shí)這個(gè)單詞，你可以查下字典。look over仔細(xì)檢查；翻閱Look over the paper again before you hand it in.在你交試卷前， 要仔細(xì)檢查試卷。millions of

9、數(shù)以百萬(wàn)計(jì)的，大量的【必會(huì)考點(diǎn)】當(dāng)表示一個(gè)籠統(tǒng)概念時(shí)，用 數(shù)詞復(fù)數(shù) + of +可數(shù)名詞復(fù)數(shù)”：eg: hundreds of 幾百 thousands of 幾千 millions of 幾百萬(wàn) billions of 幾億 hundreds of thousands 成千上萬(wàn)的thousands of millions 許多的，大量的當(dāng)以上數(shù)詞前有具體基數(shù)詞時(shí)，結(jié)構(gòu)為：基數(shù)詞+數(shù)詞單數(shù) + of +可數(shù)名詞復(fù)數(shù)eg: two hundred of eggs 兩百個(gè)雞蛋8. however VS. but【必會(huì)考點(diǎn)】however adv.然而【知識(shí)拓展】however副詞可位于句首、句中、

10、必須用逗號(hào)與句子句末分開(kāi)but違詞位于句首戒句中后面連授L個(gè)句子 時(shí)無(wú)需用逗號(hào)例：I want to study abroad; however, it is a difficult decision.I want to study abroad, but it is a difficult decision.我想出國(guó)留學(xué)，然而，這是一個(gè)困難的決定。on the phone 在打電話，在電話中【必會(huì)考點(diǎn)】on表示通過(guò)某種方式 “on the phone 在打電話，在電話中on the radio 通過(guò)廣播on the internet 在網(wǎng)絡(luò)上on TV在電視上v.討厭，不喜歡【必會(huì)考點(diǎn)】ha

11、te為及物動(dòng)詞，后可跟名詞、代詞、不定式或動(dòng)名詞【知識(shí)拓展】 hate doing VS. hate to dohate doing表示習(xí)慣性的動(dòng)作I hate running.我 討厭跑 步。hate to do表示某一次具體的動(dòng)作I hate to go out in such a rainy day.我討厭在這樣一 個(gè)雨天出門(mén)。11. practise v.練習(xí) practising; practised; practised 【必會(huì)考點(diǎn)】v.訓(xùn)練，練習(xí)（后可跟名詞、代詞或代名詞）He keeps practising playing the piano every day.他每天堅(jiān)持練

12、習(xí)彈鋼琴。practice n. U訓(xùn)I練，練習(xí)You need more practice to improve your skills.你需要更多的練習(xí)來(lái)提高你的技能。not until 直至1J 才【必會(huì)考點(diǎn)】 notuntil的結(jié)構(gòu)中，主句的動(dòng)詞一般非延續(xù)性動(dòng)詞，它所表示的動(dòng)作直到until所表示的時(shí)間才發(fā)生。He didnt come back until 10 o clock.直到十點(diǎn)鐘，他才回家?！局R(shí)拓展】 until為連詞，意為 直到時(shí)”，用于肯定句，主句的動(dòng)詞一般為延續(xù)性動(dòng)詞。The show will last until midnight.這個(gè)演出會(huì)一直持續(xù)到半夜。13

13、. another VS. other VS. the other VS. others VS. the others【知識(shí)拓展】another既可作形容詞，也可作代詞，表示另一個(gè)”other只作形容詞，表示 其它的”，不指 剩下的，后跟名詞復(fù)數(shù)the other后可跟名詞單數(shù)或復(fù)數(shù)，表不剩下的，其余的（一個(gè)或一些）”others只作代詞，代指可數(shù)名詞復(fù)數(shù)，表示其他的”，不指剩下的”the others后不跟名詞，代指可數(shù)名詞復(fù)數(shù)，表不剩下的，其余的”eg : The cake is delicious. I want another. 這個(gè)蛋糕很好吃，我還想要一個(gè)。Some students

14、 are playing, and other students are studying.一些學(xué)生在玩，而另外一些在學(xué)習(xí)The twins are cute. One is Jack, the other is Tom.這對(duì)雙胞胎很可愛(ài)。一個(gè)叫杰克，一個(gè)叫湯姆。Some people like outdoor activities, but others don有些人喜歡戶夕施動(dòng)，但有些人不喜歡。They will help the teacher to carry the books, and the others will stay in the classroom.他們會(huì)去幫老師搬書(shū)，

15、而其他人則留在教室里。14. carry VS. bring VS. take VS. fetch 【必會(huì)考點(diǎn)】carry搬，背強(qiáng)調(diào)搬或背的動(dòng)作，而不強(qiáng)調(diào) 動(dòng)作的方向性bring帶來(lái)強(qiáng)調(diào)把某物從另一個(gè)地方帶來(lái) 說(shuō)話人所在的地方take拿走強(qiáng)調(diào)把某物從說(shuō)話人所在的地 方帶去另一個(gè)地方fetch去拿來(lái)強(qiáng)調(diào)從說(shuō)話人所在的地方去另 一個(gè)地方取某物，并將此物帶 回說(shuō)話人所在地eg: Most of the middle school students carry heavy bags to go to school.大多數(shù)的中學(xué)生每天都背著很重的書(shū)包去上學(xué)。Please bring the book b

16、ack to me tomorrow.明天請(qǐng)把書(shū)帶來(lái)給我。He has taken my money.他把我的錢(qián)拿走了。Go and fetch the chair. 去把那把椅子拿來(lái)。cover v. 覆蓋 covering; covered; covered【必會(huì)考點(diǎn)】cover v.覆蓋；遮蓋The group of buildings covers more than ten thousand square metres.這片建筑群覆蓋了超過(guò)一萬(wàn)平方米的土地。cover with 用把蓋上He covers the box with a small square of fabric c

17、arefully. 他小心地用一塊方形的布把那個(gè)盒子蓋上了。be covered with 被覆蓋著The whole road is covered with snow.整條路都被雪覆蓋了【知識(shí)拓展】cover n. 需;子；覆蓋物16. because of VS. because 【必會(huì)考點(diǎn)】because of介詞短語(yǔ)其后可接名詞、代詞、動(dòng)名詞、what從句等because違詞后跟句子eg: He failed in the exam because of his carelessness.他因?yàn)榇中?，沒(méi)有通過(guò)考試。I didn t go out because it rained h

18、ard then.我沒(méi)有出去，因?yàn)楫?dāng)時(shí)雨下得很大。the number of VS. a number of【必會(huì)考點(diǎn)】the number of的數(shù)量后接可數(shù)名詞復(fù)數(shù)，但謂語(yǔ)動(dòng)詞要用單數(shù)形式a number of大量；許多后接可數(shù)名詞復(fù)數(shù)，但謂語(yǔ)動(dòng)詞要用復(fù)數(shù)形式eg : The number of the students in our class is 20.我們班學(xué)生的數(shù)量為20。A number of students are waiting outside. 許多學(xué)生在門(mén)口等著。besides VS. except VS. but【知識(shí)拓展】besides除之外”，在原有基礎(chǔ)上附加新

19、的內(nèi)容except除之外”，在原有基礎(chǔ)上排除一個(gè)內(nèi)容but除之外，常放在any, no以及含有這些詞的復(fù)合 不定代詞 anything, nothing 等和 no one, none, all 等詞 之后eg : I think she has many good qualities besides being very beautiful.我覺(jué)得她除了非常漂亮之外，還有許多好的品質(zhì)。I wouldnt have accepted anything except a job in New York.當(dāng)時(shí)我不會(huì)接受一份除紐約以外任何其他地方的工作。He couldn t speak anyth

20、ing but Greek.除了希臘語(yǔ)之外，他不會(huì)說(shuō)其它任何語(yǔ)言。discover v. 發(fā)現(xiàn) discovering; discovered; discovered 【必會(huì)考點(diǎn)】discover v.發(fā)現(xiàn)He is the first European to discover America.他是第一個(gè)發(fā)現(xiàn)美洲的歐洲人?！局R(shí)拓展】discovery n. 發(fā)現(xiàn)I felt I had made an incredible discovery.我感到自己有了一個(gè)驚人的發(fā)現(xiàn)。重點(diǎn)語(yǔ)法現(xiàn)在進(jìn)行時(shí)形式：be (am, is, are) + 現(xiàn)在分詞現(xiàn)在分詞的構(gòu)成：直：直接加 ing,如：work-

21、working去：以不發(fā)音的 e結(jié)尾的詞，去 e加ing,如：make-making雙：以重讀閉音節(jié)結(jié)尾的詞，需雙寫(xiě)末尾輔音字母加ingo如：sit-sitting改： 以 ie 結(jié)尾的詞，改 ie 為 y,力口 ing。如：die-dying; tie-tying; lie-lying標(biāo)志詞：時(shí)間類(lèi)： now; at present; these days; right now; at the moment; etc. 情景類(lèi)：listen; look; where is ；etc.用法：表示現(xiàn)在正在逆行的動(dòng)作He is doing his homework now. 他現(xiàn)在正在做作業(yè)。強(qiáng)調(diào)

22、這段時(shí)間一直在逆行的動(dòng)作I am learning to swim these days. 這些天我一直在學(xué)游泳。易錯(cuò)考點(diǎn)：瞬間性動(dòng)詞如 go, come, arrive, die等瞬間性動(dòng)詞用現(xiàn)在進(jìn)行時(shí)表將來(lái)The bus is leaving. 公交車(chē)快開(kāi)了。而是表達(dá)說(shuō)現(xiàn)在進(jìn)行時(shí)與 always, forever, all the time 這種詞連用時(shí)，動(dòng)作不一定正在進(jìn)行,話人強(qiáng)烈感情色彩，如批評(píng)，表?yè)P(yáng)，同情等。He is always helping others.他總是幫助別人。(帶有表?yè)P(yáng)的感情色彩)五類(lèi)不能用進(jìn)行時(shí)態(tài)的詞感官動(dòng)詞 The cake tastes delicious.

23、這個(gè)蛋糕很美味。誤：The cake is tasting delicious.表示擁有或需要的動(dòng)詞I want to have a rest. 我想要休息一下。誤：I am wanting to have a rest.表示喜好或厭惡的動(dòng)詞I like to go for a trip. 我想去旅游。誤： I am liking to go for a trip.表示知道或了解的動(dòng)詞I know what he meant. 我知道他的意思。誤： I am knowing what he meant.5. 表示存在狀態(tài)的動(dòng)詞I exist by what I think. 我靠所思考的東西而

24、生存。誤： I am existing by what I think.EXERCISE單項(xiàng)選擇Mr. Smith short stories, but he a TV play these days.is writing; is writing B. is writing; writes C. writes; is writing D. writes; writesListen! The baby in the next room.crying B. cried C. is crying D. criesWhere s Tom His mother him now.is looking fo

25、r B. will look for C. has looked for D. looks forMary isn t here at the moment. She es B. came C. has come D. is comingHe always in the class, which makes the teacher angry./; talks B. has; talked C. is; talking D. /; talkedListen, the song beautiful.is sounding B. sounds C. sounded D. has soundedSe

26、lecting a mobile phone for personal use is no easy task because technology so rapidly.is changing B. has changed C. will have changed D. will changeThe patient is seriously ill. It looks as if he .dies B. has died C. is dying D. was diedI used to playing the guitar, but now I to play the piano.like;

27、 prefer B. like; am preferring C. am liking; prefer D. am liking; am preferringToday Jim his white shirt and brown trousers.A. is putting on B. wear C. put on D. is wearingHurry up, Jack. We have to get to the station before 11: 45 we can catch the 12: 00 train.since B. after C. as soon as D. so tha

28、tYoull do much better youre more careful with your spelling.if B. before C. although D. unlessFei Junlong and Nie Haisheng said, we didnt see the Great Wall, we felt excited when wepassed over China. ”Because B. If C. Although D. As- Im going hiking tomorrow. - Im afraid not, it will be rainy.before

29、 B. because C. when D. thoughThe roof fell he had time to dash into the room to save his baby.after B. as C. before D. untilIt was not she took off her glasses I realized that she was a famous film star.when; that B. until; that C. until; when D. when; thenYou will be late you leave immediately.unle

30、ss B. until C. if D. orJohn plays football , if not better than, David.as well B. as well as C. so well D. so well asThey were surprised that a child should work out the problem they themselves couldn t.once B. then C. while D. if-A new film is on these days. Shall we go to the cinema together, Lucy and Lily - Lily I will go with you because one of us must be at home to help our father in the garden.Either; nor B. Either; or C. Neither; nor D. Both; and首字母填空I will dthe situation with colleagues tomo