1、新牛津深圳版英語(yǔ)七年級(jí)下冊(cè)第4單元知識(shí)要點(diǎn)一、單詞：1. disease 疾病( illness ) 2. convenient 方便的(= easier; convenience n. )3. branch 樹(shù)枝( branches pl. ) 4. discuss 討論(= talk about; discussion n.)5. against 反對(duì)( again ) 6. container 7. example 例子( exam; simple ) 8. harmful 有害的( harm n.; harmless )9. oxygen 氧氣 10. produce 生產(chǎn)(= mak

2、e; product; production )11. gas 氣體 12. pine 松樹(shù)( fine; line; mine; nine; wine )13. hole 洞;孔( whole 整個(gè)的 ) 14. furniture 家具( 不可數(shù)名詞; future )15. save 拯救( safe adj. ) 16. imagine 想象( imagination n. imagine doing )17. dig 挖( dug; digging ） 18. major 主要的(= big and important = main )19. carry 搬運(yùn)；攜帶(marry結(jié)婚)

3、 20. root 根( foot; boot; room; roof )21. fight 與作斗爭(zhēng)( fighter n. fought; eight; light; might; night; right; sight )二、詞組：1. take in=absorb 吸收 2. know/ learn about 了解；學(xué)到3. for example 例如 4. in fact=as a matter of fact 確切的說(shuō)；實(shí)際上5. look around 環(huán)顧四周 6. millions of 大量的，數(shù)以百萬(wàn)計(jì)的7. be made of 由制成 8. in our dail

4、y lives 在我們?nèi)粘Ｉ钪?. come/ be from 來(lái)自 10. air pollution 空氣污染 11. writedown 寫(xiě)下；記下 12. with the help of 在的幫助下 13. cut down 砍倒 14. be good for 對(duì)有利/好處15. as a result 結(jié)果是 16. living things 生物；有生命事物17. fight against 與作斗爭(zhēng) 18. be good at = do well in 擅長(zhǎng)于；在某方面好19. be in danger 處于危險(xiǎn)中 20. a lot of = lots of = ma

5、ny / much 許多21. discuss = talk about = talkover 討論；商討22. be bad for = be harmful to = do harm to 對(duì)有害23. have fun = have a good time = enjoy oneself 過(guò)得愉快；玩得開(kāi)心24. provide sb with sth = provide sth for sb = offer sth to sb 給某人提供某物三、句型結(jié)構(gòu)：1. stop doing sth 停止做某事 2. stop to do sth 停下來(lái)去做另件事 3. imagine doin

6、g sth 想象做某事 4. imagine sb to do sth 想象某人做某事5. help sb do sth 幫助某人做某事 6. plan to do sth 計(jì)劃打算做某事7. want to do sth = would like to do sth = feel like doing sth 想要做某事8. want sb to do sth = would like sb to do sth 想要某人做某事9. keep / make adj. 使 keep clean make the room beautiful 辨析：1. carry 搬運(yùn)；攜帶（無(wú)方向性）; ta

7、ke 拿走；帶走; bring 拿來(lái)；帶來(lái); fecth 去拿來(lái) = go and bring 2. be made of 由.制成; be made from 由.制成; be made up of 由.組/構(gòu)成 The table is made of wood. 桌子是用木頭制成的。(看得見(jiàn)原材料。) The wine is made from grapes. 酒是用葡萄釀造的。 (看不見(jiàn)原材料。) China is made up of over thirty provices. 中國(guó)是由三十多個(gè)省組成的。四、語(yǔ)法：現(xiàn)在進(jìn)行時(shí)態(tài)1. 定義：現(xiàn)在進(jìn)行時(shí)表示現(xiàn)在正在發(fā)生的動(dòng)作或存在的狀態(tài)。

8、也可表示現(xiàn)階段在進(jìn)行的動(dòng)作。2. 標(biāo)志(時(shí)間): now= at the moment 提示詞: Look Listen Its 8:00 now. 對(duì)這些時(shí)間狀語(yǔ)提問(wèn)時(shí)用疑問(wèn)詞 when例: Look! They are playing football. Listen! The girl is singing in the room.Its 12:00 now. Mr.Smith is having lunch3、現(xiàn)在進(jìn)行時(shí)態(tài)構(gòu)成： 主語(yǔ)+ be動(dòng)詞現(xiàn)在式（am、is、are）+動(dòng)詞ing 4、現(xiàn)在進(jìn)行時(shí)的幾種句型：（一）陳述句（肯定句、否定句）肯定句：主語(yǔ) be(am, is, are)

9、 + 現(xiàn)在分詞 Jim is singing.否定句：主語(yǔ) be(am, is, are) + not + 現(xiàn)在分詞 He isnt reading English.（二）一般疑問(wèn)句；（變疑問(wèn)句將be動(dòng)詞移到句首主語(yǔ)前）Be(Am, Is, Are) + 主語(yǔ) 現(xiàn)在分詞 Is Tom working? Yes, he is. No, he isnt.（三）特殊疑問(wèn)句疑問(wèn)詞 be (am, is, are) 主語(yǔ) 現(xiàn)在分詞例: They are playing football on the playground now. 否定句: They arent playing football on

10、the playground now. 一般問(wèn)句: Are they playing football on the playground now? 特殊問(wèn)句: What are they doing on the playground now?肯定式否定式單數(shù)I am working.You are working.He/ She is working.I am not working.You are not working.He/ She is not working.復(fù)數(shù)We/ You/ They are working.We/ You/ They are not working. 附:

11、動(dòng)詞的現(xiàn)在分詞的構(gòu)成規(guī)則(v.-ing)1、一般情況下，直接加ing，如：cookcooking、readreading、looklooking2、以不發(fā)音的e結(jié)尾，去e加ing，如：makemaking, havehaving、writewriting3、以一個(gè)元音字母 + 一個(gè)輔音字母結(jié)尾的重讀閉音節(jié)動(dòng)詞,雙寫(xiě)該輔音字母,再加- ing:runrunning, stopstopping、swimswimming、sitsitting、beginbeginning4、 以y或w結(jié)尾的動(dòng)詞,直接加-ing: playplaying flyflying throwthrowing5、 但 die

12、 (死) dying lie(躺;說(shuō)謊) lying tie(系;捆) tying fixfixing五、寫(xiě)作指導(dǎo) 作文范文：（一） Save the trees Trees are our best friends on Earth. They produce oxygen for us to breathe, and they take in waste gas from cars and other harmful gases from the air. Trees also make our lives more comfortable and convenient. Look aro

13、und and you will find that a lot of products are made of wood.However, trees are now in danger. People cut down millions of trees every year. Can you imagine the world without trees? In fact, if we dont start protecting them from now on, well soon lose our friends, the trees.（二） Trees are our good f

14、riendsTrees are very important in our daily life. They are our good friends.Trees keep the air cool and clean, they take in harmful gases from the air and produce oxygen for us to breathe. They are major fighters against air pollution and make cities beautiful.Trees make our lives more convenient. T

15、hey provide a lot of useful things for people, such us paper, food and oil. Trees also stop water and soil from going away.In a word, we cant live without trees. We should stop cutting down millions of trees every year. We should plant more trees and take care of them. Tree Planting DayYesterday it

16、was March 12 - Tree Planting Day. We went to the hill to plant tress with our teachers. There we learned how to plant trees. We also learned a lot about plants. For example, trees can help clean the air. They give us food, such as apples, oranges, grapes, peached and pears. People and other animals

17、need them to live. We planted a lot of trees yesterday. We were very tired, but we felt very happy.I、寫(xiě)出下列動(dòng)詞的現(xiàn)在分詞形式：1. sing 2.live 3.ski 4.run 5.carry 6. get 7.stop 8.die 9.throw 10.write 11.dig 12.dance 13.know 14.begin 15.clean II、詞語(yǔ)釋義：1. Air pollution is a major pollution. A. big and important B.

18、small C. easy D. not important 2. Trees produce oxygen for us to breathe. A. get B. make C. go D. take 3. We talked about the problem in our class meeting yesterday afternoon. A. discuss B. discussed C. think D. thought 4. Do you come from Australia? A. Are.from B. Do.from C. De D. Ae fro

19、m 5. I really did my homework by myself this time. A. along B. of oneself C. alone D. have no time 6. People rescued the sleeping baby from the fire. A. took B. carried C. saved D. dug 7. Do you think one pill (藥丸) can cure all kinds of disease in the future? A. cancer B. illness C. stomachache(胃病)

20、D. cold 8. Mr Green is a blind man. He always goes everywhere with a guide dog. A. cant hear B. cant smell C. cant see D. cant walk 9. Trees are important because they can take in harmful gases. A. make B. absorb C. stop D. put 10. Life is more convenient than before. A. easier B. harder C. the easiest D. the hardestIII、根據(jù)句意，用所給詞的正確形式填空：1. Eating too much junk food is ( harm ) for our health.2. The camel(駱駝) is a ( use ) animal when you tra