【正文】 considered as = be regarded as。Hear from 收到?的來信（已經(jīng)含有收信的意思，無需用letter）= receive a letter from oneself in ? 意為“沉浸于?”Eg：The scenery is so attractive that visitors often lose themselves in 。 is the biggest city in China and Beijing is the second biggest ，北京位居第二。 them, the Yangtze River is the longest one and the second longest is the Yellow ，黃河位居第二。 number of books are lent out from the library every 。(great)number of ? 許多/大量，后接可數(shù)名詞復(fù)數(shù)，作主語時(shí)，謂語用復(fù)數(shù)；the number of ?。country 是先行詞，that 是關(guān)系代詞，在定語從句中作主語，也可以用which.。Unit5 Knowing about China Topic 1 How much do you know about China？ is a great country that has about 5000 years of ?！痵 a quarter as big as the 。What’s worse 更糟糕的是。eg：It is(或has been)three years since we left 。 has been two days since we landed on 。(2)can +be +過去分詞，是情態(tài)動(dòng)詞構(gòu)成的被動(dòng)語態(tài)。(1)當(dāng)think, believe, suppose, imagine, expect等動(dòng)詞后的賓語從句含有not的否定詞時(shí)，該否定應(yīng)移至主句，即否定主句的謂語動(dòng)詞。（過去她曾住這兒） method worked well at night as long as the weather was good and the stars could be ，能看見星星，這種方法就能很好地發(fā)揮作用。no longer（通常在動(dòng)詞前），not?any longer。Recorders are often used by English 。Wood is used to make 。(3)be used by 被??使用，by后跟人/物，強(qiáng)調(diào)使用者。’s used for helping us to improve our 。Was this cake made by your mother?這蛋糕是你媽媽做的嗎？Metal can be made into all kinds of 。These houses are made of 。(4)be made by 由（被）??（人）制作，后接表示人的名詞或代詞。(2)be made of 用??制造的，表示原材料未經(jīng)化學(xué)變化，仍可看得出原材料?！痵 made from 。(3)allow +doing sth 允許做某事 如：We don’t allow smoking in the 。常用于以下幾種形式：(1)allow +n./prep 如：We can’t allow such a 。Unit 4 Amazing Science Topic 1 Spaceship are mainly controlled by of 夢想Eg：I dream of studying in a 寄，送Eg：I will send a gift to my mother on her birthday.=I will send my mother a gift on her ：～ for 派人去請～off 送行～ out發(fā)出（光、熱）；長（葉子）～ up 發(fā)射 doubt 毫無疑問Eg : There is no doubt he is a kind to 多虧eg : Thanks to the bad weather we don’t have to do morning on 打開turn off 關(guān)掉turn up 調(diào)高turn down 調(diào)低 Topic 2 When was it invented? I’m not allowed to play puter 。t catch the last bus.?因?yàn)闆]有趕上末班車, in 吸收，如：The English language has taken in many new words from other 3 Could you give us some advice on how to learn English well? sb understood 使某人被理解Eg：He say it slowly to make him understood hard at 努力?eg:He worked hard at English and at last he passed the final 建議（后接to do 或Ving）eg：I advises waiting till the proper advise you to leave to 堅(jiān)持(to 是介詞，后接名詞或Ving)Eg：If you stick to the truth ,you have nothing to sticks to having a talk with his at 嘲笑Eg：Don’t laugh at to realize 明白eg：After talking to his teacher,he have e to realize his teacher is always caring for him。m still worried about my as for...? 至于?, 關(guān)于某人/某事eg: As for the spelling differences, you can easily find them when you use a puter.?? difficulty doing 注：difficulty作“困難,艱難,費(fèi)勁,辛苦,難度”解時(shí)為un 作“難題,難事,難處,困境,危難”時(shí),為 eg: We have difficulties understanding foreigners closed to...? 靠近..., The Disneyland is close to Los Angeles.? 迪斯尼樂園離洛杉磯很近。s way to +地名, 在去某地的路上(后接副詞時(shí)不用to)?.? eg: Lucy is on her way to .??Tom is on his way .[要區(qū)別于By the way順便問/說一下。m .?? I39。t follow you.? Can you speak more slowly, please? the same as?? 與...相同，eg: Is Australian English the same sa British English? 澳大利亞英語和英國英語是相同的嗎? 39。s more 還有once in a while 有時(shí)，偶爾，相當(dāng)于at times或sometimes = no matter whentopic 2 English is spoken differently indifferent countries。eg: In general, he has no trouble understanding ，他聽懂別人的說話是沒有困難的。 A into B 把A翻譯成B，eg: The interpreter translates English into 。eg: I39。s possible that you will have some 。 business 出差?eg： is on business in the .. similar to...與...相似eg: Is Spanish similar to English? 西班牙語和英語會(huì)相似嗎？ 39。 now on 從現(xiàn)在起，意思相當(dāng)于later on 后來，過后，將來。 speaking English 練習(xí)說英語。 a good chance to do eg: You39。t help doing ，如：I can39。t wait to fly there!我迫不急待地想要飛往哪里。39。其否定式和疑問式：You oughtn’t to get up so late in the 。如：You ought to help your mother do some 。指道義上應(yīng)該做的事,有時(shí)含有責(zé)備或督促的語氣。應(yīng)當(dāng)”。, you ought to turn off the lights when you leave a ，當(dāng)你離開房間的時(shí)候，應(yīng)該關(guān)燈。用于否定句時(shí)，表“允許”；eg: Teachers are supposed to/ should know a 。 is supposed to do 。Topic 3 Let’s be greener should use both sides of paper, and reuse plastic bags rather than throw them ，將塑料袋再次使用而不是輕易扔掉。如：A：Ｗo(hù)uld you like coffee or tea? B: Either is OK你想要咖啡還是茶？隨便都可以。Either you or he is ，要么他對。a)either?or? “要么?要么?并列連詞,連接主語時(shí),根據(jù)就近原則選取謂語動(dòng)詞。 danger of(doing)eg: They are in danger of losing their 。6．Trees can stop the wind from blowing the earth can also prevent the sand from moving toward the rich ，也可阻止風(fēng)沙吹進(jìn)良田。eg: The children went away, talking and 、笑著離開了。When the traffic lights change/ turn into green, we can ,我們就可以通行。（主動(dòng)語態(tài)）5．A lot of rich land has changed into desert, leaving only ，留下的是遍地黃沙。eg: The earth will be blown away by the 。 it rains, the soil will be washed ，土壤就會(huì)被沖走。A: How much water is there in the bottle? B: ？ 一點(diǎn)兒也沒有。none回答how many/ much的問題；no one回答who的問題。None of my friends like/ likes drawing.（指人）我的朋友們沒有一個(gè)喜歡畫畫。作主語時(shí)，謂語動(dòng)詞只用作單數(shù)。none與no one 的區(qū)別： none “全無”，既可指人也可指物，后常跟of 的短語。The clock says that it is 20:00 ：00。sth.+ says that? 此句型中主語是事或物，say表用“文字、數(shù)字”說明信息。b)如句中含有非延續(xù)性動(dòng)詞，則改為相應(yīng)的延續(xù)性動(dòng)詞或狀態(tài)。不比??做得好” eg: Lucy did no better than Lily in the .= Lucy almost did as badly as Lily in the / since 引導(dǎo)的一段時(shí)間狀語搭配使用。7． Recently it was reported that many teenagers in America can hear no better than 65yearold people do,?近來據(jù)報(bào)道，美國許多青少年的聽力和65歲的老人一樣差。I’m sorry to trouble 。6．I’m sorry for making so much 。他們將停下來吃晚飯。There is a little girl crying in the 。There be + sb./ sth.+ doing 。當(dāng)主從句主語一致時(shí)，常可轉(zhuǎn)換成不定式短語= I hope to move from here 。I can’t stand waiting any 。stand 表“容忍；忍受”，后接名詞、代詞及動(dòng)名詞做賓語。eg: They have learnt about 500 English words in the past two ，他們已經(jīng)學(xué)習(xí)了大約500個(gè)英語單詞。5．In the past sixteen years, Project Hope has raised about 3 billion ，希望工程已籌集了大約30億元。be successful in doing ，相當(dāng)于 succeed in doing ： eg: He was successful in passing the 。I need a pen to write 。to live in 是動(dòng)詞不定式，如動(dòng)詞為不及物動(dòng)詞，或者不定式所修飾的名詞或代詞是不定式動(dòng)作的地點(diǎn)、工具等，不定式后必須跟上相應(yīng)的介詞。provide sth.= provide