【正文】 will writeam/is/are going to writewill be writtenam/is/are going to be writtenwill not be writtenam/is/are not going to be writtenWill… write?Am/Is/Are going to write…?過去將來時(shí)would/should writewas/were going to writewould/should be writtenwas/were going to be writtenwould/should not be writtenwas/were not going to be writtenWould/Should… be written?Was/Were… going to be written?現(xiàn)在進(jìn)行時(shí)am/is/are writingam/is/are being writtenam/is/are not being writtenAm/Is/Are… writing?過去進(jìn)行時(shí)was/were writingwas/were being writtenwas/were notbeing writtenWas/Were …being written?現(xiàn)在完成時(shí)have/has writtenhave/has been writtenhave/has not been writtenHave/Has…been written?過去完成時(shí)had writtenhad been writtenhad not been writtenHad …been written?含有情態(tài)動(dòng)詞can writecan be writtencan not be writtenCan…be written?注意：1）短語動(dòng)詞轉(zhuǎn)換為被動(dòng)態(tài)時(shí)，通常被看作是一個(gè)動(dòng)詞，后面的介詞或副詞不能拆開或省略。Eg: We have put off the meeting till next week. The meeting has been put off till next week.2）帶雙賓語的主動(dòng)句轉(zhuǎn)換成被動(dòng)句，常用原句中的間接賓語作被動(dòng)句中的主語。當(dāng)用原句中的直接賓語做被動(dòng)句中的主語時(shí)，要在被動(dòng)句中的間接賓語前加上適當(dāng)?shù)慕樵~。 Eg: They gave her a prize. She was given a prize./ A prize was given to her. 3）主動(dòng)句中的感官動(dòng)詞(see, hear, watch, find)和使役動(dòng)詞(let, make)后接的賓語補(bǔ)足語為不帶“to”不定式時(shí),變被動(dòng)語態(tài)時(shí)要加上“to” Eg: She made her son go to bed early. Her son was made to go to bed early.4）連系動(dòng)詞為不及物動(dòng)詞，它們沒有被動(dòng)語態(tài)形式。但有些表示感受、感官的連系動(dòng)詞（如look, sound, smell, feel, taste等）可用主動(dòng)表被動(dòng)： Eg: The building looks very beautiful. 這座建筑看上去很美。5）在need, want, require等少數(shù)表示“需要”的動(dòng)詞后的動(dòng)名詞用主動(dòng)形式表被動(dòng)意義。 Eg: The house needs cleaning. 房子需要打掃了。These children require looking after. 這些孩子需要照看。U7 復(fù)習(xí)一、短語1. be in danger 處于危險(xiǎn)中2. environmental problems 環(huán)境問題3. the greenhouse effect溫室效應(yīng)4. a kind of一種；某種5. act like 行為舉止像；表現(xiàn)得像6. let … in/out 使…進(jìn)入/出去7. keep/stop/prevent sb/sth from doing sth. 阻止某人/某物做…8. in the form of…以……的形式9. keep in…保留……10. cause something to do something 引起…做某事11. take in 吸收12. hold sb/sth together 使…結(jié)合在一起；使…團(tuán)結(jié) 13. mountains of 堆積如山的，大量的14. in one’s +整十的數(shù)詞復(fù)數(shù) 在某人幾十多歲的時(shí)候15. throw…away把……扔掉16. in order to do sth 目的是；為了做某事17. imagine doing sth. 想象做某事18. answer to…什么的答案19. give up (doing) sth. 放棄20. get/ go back to 回到…, 回歸…21. have a bright future 有一個(gè)美好的未來22. get/ have sth. done. 讓…完成/做23. not … until 直到…才 (主將從現(xiàn))24. as soon as possible 盡快25. pay a fine of… 賠一筆……的罰款 26. go to prison 坐牢27. prefer (doing.) sth. / prefer to do. 28. instead of 代替29. the Whites懷特一家30. be the same as 與…一樣31. be different from 與…不同32. warm … up 熱身，使…活躍起來33. give a reason 說明原因34. know of... 知道…。 熟悉…35. Environmental Protection Bureau環(huán)保局36. waste materials廢料37. a building site 建筑工地38. inform sb. of / about sth. 通知某人關(guān)于…39. take actions 采取行動(dòng)40. deal with 處理41. put out 熄滅。撲滅42. be good/bad for對(duì)……有好處/壞處43. thousands of數(shù)千的；成千上萬的44. take/have a holiday 度假45. as you know正如你所知道的二、詞匯1. consume (n.) consumer2. dangerous (n.) danger3. environment (adj./adv.) environmentalenvironmentally4. imagination (v.) imagine5. warm (n.) warmth6. hot (n.) heat7. importance (adj.) important8. life (adj.) lifeless9. pollute (n.) pollution10. harm (adj.) harmless/harmful11. friend (adj.) friendly12. breath (v.) breathe13. recent (adv.) recently14. wealth (adj.) wealthy15. health (adj.) healthy16. use (adj.) useful/useless17. reduce (n.) reduction18. produce (n.) product19. improve (n.)improvement 20. science (n.) scientist21. difference (adj.) different22. neighbour (n.) neighbourhood23. prefer (n.) preference24. direct (n.) director25. information (v.) inform26. act (n.) action27. tour (n.) tourist28. protect (n.) protection29. chemistry (n./adj.) chemical三、語法1. much too, too much, too many2. reach, arrive in/at, get to3. prefer 的用法 prefer A to B = like A better than B prefer doing sth. to doing sth= prefer to do sth. rather than do sth. eg. Mary likes swimming better than skating. = Mary prefers swimming to skating. = Mary prefers to swim rather than skate.4. why amp。 because1) 疑問詞why用于詢問原因，回答時(shí)用because引導(dǎo)。2) because(因?yàn)?與so (所以)不能同時(shí)使用3) because +從句； because of +名詞/代詞/動(dòng)詞ing形式178。 since(由于, 既然) 和 for(因?yàn)?表推測(cè)) 也可以引導(dǎo)原因狀語從句 Since everyone is here, let’s start. 既然大家都到了，我們就開始吧 It must have rained last night, for the ground is wet.昨晚一定是下了雨，因?yàn)榈孛媸菨竦摹?. as…as…1) as＋形容詞/副詞原級(jí)＋as …和…一樣怎樣eg. My parcel is as heavy as yours. 我的包裹和你的一樣沉。2) not as/so＋形容詞/副詞原級(jí)＋as 不如……eg. He doesn’t calculate as accurately as a calculator. 他計(jì)算不如計(jì)算器精確。178。 同級(jí)比較與比較級(jí)的轉(zhuǎn)換Tom is not as careful as Mary. 湯姆不如瑪麗認(rèn)真。=Tom is less careful than Mary. 3) 倍數(shù)+ as+ adj.+ as eg. Asia is four times as large as Europe. 亞洲有歐洲的四倍大 = Asia is three times larger than Europe. 亞洲比歐洲大三倍。4）as much＋不可數(shù)名詞＋as as many＋復(fù)數(shù)可數(shù)名詞＋aseg. He has learned as many English words as his brother (has). 他已學(xué)了和他哥哥一樣多的英文單詞。My little daughter ate as much food as her sister.我的小女兒和她姐姐吃一樣多的食物。6. as, like, the same as amp。 different from amp。 be similar toas正如，強(qiáng)調(diào)一模一樣 like 像…，強(qiáng)調(diào)某些方面相似 like(v.)—(opp.)dislike like(prep.)—(opp.)unlike the same as　完全相同 different from　不同，不相象 be similar to和…相似的三者常與連系動(dòng)詞be, feel, look, seem, smell, sound, taste連用。