人教版必修2Unit3解析

　　小編今天整理人教版必修2Unit3的解析，如果有需要的同學(xué)們可以收藏起來(lái)參考一下。

　　Unit3 Computers知識(shí)點(diǎn)詳解

　　Ⅰ. ?？紗卧~必背

　　1.simplify vt. 簡(jiǎn)化

　　Try to simplify your explanation for the children.

　　設(shè)法讓你的解釋簡(jiǎn)易一些，讓孩子們能聽懂。

　　[快速閃記](méi)

　　simplified adj. 簡(jiǎn)化的

　　simplification n. 簡(jiǎn)化

　　2. sum n.總數(shù);算術(shù)題;金額　v.合計(jì)

　　In sum，the course is clear.

　　總而言之，這個(gè)過(guò)程是清晰的。

　　[快速閃記](méi)

　　in sum 總之，總而言之

　　sum up 概括;合計(jì)

　　sum up to 總計(jì)為

　　3.intelligence n.智力;聰明;智能

　　Computer scientists study artificial intelligence.

　　計(jì)算機(jī)科研人員研究人工智能。

　　[快速閃記](méi)

　　intelligent adj. 智能的;聰明的

　　4. solve vt. 解決;解答

　　Can you help me to solve this maths question?

　　你能幫我解答這個(gè)數(shù)學(xué)問(wèn)題嗎?

　　[快速閃記](méi)

　　(1) solve/settle/deal with problems 解決問(wèn)題

　　(2) solution n. 解決，解答

　　5.total adj. 總的;整個(gè)的 n. 總數(shù);合計(jì)

　　In total，they spent 420 hours on the project.

　　他們?cè)谶@項(xiàng)工程上總共花了420 個(gè)小時(shí)。

　　[快速閃記](méi)

　　totally adv. 完全地;整個(gè)地

　　6.application n.應(yīng)用;用途;申請(qǐng)

　　There were more than 300 applications for the six jobs.

　　有300多人申請(qǐng)這6份工作。

　　[快速閃記](méi)

　　apply v. 應(yīng)用，運(yùn)用，申請(qǐng)，請(qǐng)求

　　7. explore vt.&vi. 探索;探測(cè);探究

　　The scientists are exploring all possible ways to improve food production.

　　科學(xué)家們正在探究所有可能提高食品產(chǎn)量的方法。

　　[快速閃記](méi)

　　exploration n. 探索

　　explorer n. 探險(xiǎn)者

　　8. anyhow adv. (也作anyway)無(wú)論如何;即使如此

　　The fog was heavy that day, but anyhow he drove away.

　　那天的霧很大，但是即使如此他還是開車離開了。

　　[快速閃記](méi)

　　somehow adv. 不知怎么地;以某種方式

　　somewhat adv. 稍微;有點(diǎn)

　　9. goal n.目標(biāo);目的;球門;(進(jìn)球)得分

　　To become an excellent director is her life goal.

　　成為一名優(yōu)秀的導(dǎo)演是她的人生目標(biāo)。

　　[快速閃記](méi)

　　life goal/one's goal in life 人生目標(biāo)

　　set a goal 設(shè)定一個(gè)目標(biāo)

　　achieve/realize one's goal 實(shí)現(xiàn)目標(biāo)

　　10. signal vi.&vt. 發(fā)信號(hào) n.信號(hào)

　　He signaled the waiter to bring the menu.

　　他做手勢(shì)要侍者拿菜單來(lái)。

　　[快速閃記](méi)

　　signal (to) sb (to do sth) 向……發(fā)出(做……)的信號(hào)，示意(某人)做某事

　　signal to do 用信號(hào)指示做……

　　signal (sb) that 示意……

　?、? 高頻短語(yǔ)必會(huì)

　　1.from...on 從……時(shí)起

　　From now on，we should pay more attention to protecting the environment.

　　從現(xiàn)在起，我們應(yīng)該更加注意保護(hù)環(huán)境。

　　[快速閃記](méi)

　　from then on 從那時(shí)起

　　from now on 從今以后

　　from that day on 從那天起

　　2.as a result 結(jié)果，單獨(dú)使用，作連接性狀語(yǔ)，起承上啟下的作用。

　　He didn't work hard; as a result he failed the exam.

　　他學(xué)習(xí)不努力，結(jié)果考試不及格。

　　[快速閃記](méi)

　　as a result of 表示“由于……的原因，作為……的結(jié)果，”后接名詞或代詞，在句中常用來(lái)引導(dǎo)原因狀語(yǔ)。

　　3.so...that... 如此……以至于……

　　She was so strong that she could lift the heavy box.

　　她很強(qiáng)壯，能夠拎起這個(gè)沉重的盒子。

　　[快速閃記](méi)

　　so+形容詞/副詞+that... 如此……以至于……

　　so+形容詞+不定冠詞+名詞單數(shù)+that... 如此……以至于……

　　so+much/little+不可數(shù)名詞+that... 如此多/少……以至于……

　　so+many/few+可數(shù)名詞復(fù)數(shù)+that... 如此多/少……以至于……

　　4.in a way (=in one way/in some way) 在某種程度上

　　[快速閃記](méi)

　　in this way 用這種方法

　　in the/sb's way 擋路，妨礙

　　in no way 決不(置于句首，句子要倒裝)

　　5.with the help of 在……的幫助下

　　With the help of my teachers，I have made great progress.

　　在老師們的幫助下，我已取得很大成就。

　　6.deal with 對(duì)付，應(yīng)付;處理，安排;論及，涉及;與……交流，交易

　　You should deal with him more politely.

　　你應(yīng)該待他更客氣一些。

　　[快速閃記](méi)

　　deal with中的deal為不及物動(dòng)詞，常與疑問(wèn)詞how連用，表示“怎么處理/對(duì)待”;同義短語(yǔ)為do with，其中的do為及物動(dòng)詞，表示“怎么處理/對(duì)待”時(shí)，與疑問(wèn)詞what連用。

　?、? 寫作句式必學(xué)

　　1....it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.

　　大約兩百年后，查爾斯·巴比奇才把我制成了一臺(tái)分析機(jī)。

　　2.As time went by，I was made smaller.

　　隨著時(shí)間的推移，我被做得更小了。

　　3.Anyhow，my goal is to provide humans with a life of high quality.

　　不管怎樣，我的目標(biāo)是給人類提供高質(zhì)量的生活。

　　4.By the time I was sixteen，my dream had come true.

　　到我16歲時(shí)，我的夢(mèng)想已經(jīng)成為現(xiàn)實(shí)。

　　5.She programs us with all the possible moves she has seen while watching human games.

　　她把觀看人類比賽時(shí)所看到的一切可能動(dòng)作編入我們的程序。

　　6.Although I was young I could simplify difficult sums.

　　盡管我很年輕，但我能簡(jiǎn)化一些復(fù)雜的數(shù)額。

　?、? 短文語(yǔ)法填空，然后背誦短文，熟記本單元的重點(diǎn)詞匯。

　　Computers

　　The goal of early calculating machines was __1__(simplify) difficult sums.But with the help of new technology，electronic chips replaced tubes and a revolution of artificial__2__(intelligent) has arisen.From then on，the appearance of computers totally__3__(change) our lives.They can not only download information from the net when __4__(connect) by the network or mobile phone signals，but also solve different types oflogical problems.With operators as their __5__(coach)，they can even control rockets toexplore the moon and instruct androids with the human race's characters to mop floors and watch over __6__(you) naughty niece.Anyhow，computers are so helpful __7__ they do bring happiness.

　　However，computers are easily attacked by viruses.This reality has become a problem that is hard to deal with.__8__ a result，computers are dangerous in __9__ way.So，__10__(personal)，I worry about their universal applications in some fields，such as finance.

　　答案：

　　1. to simplify 2. intelligence 3. changed 4. connected

　　5. coaches 6. your 7. that 8. As 9. a 10. personally

　　Unit3 Computers單元練習(xí)

　?、? 單句語(yǔ)法填空

　　1.You must learn to consult your feelings and your reason __before__ you reach any decision.

　　解析：考查連詞與狀語(yǔ)從句。句意：在做任何決定前，你一定要學(xué)會(huì)考慮自己的感覺(jué)與理智。before在……之前，引導(dǎo)時(shí)間狀語(yǔ)從句，符合題意。

　　2.Brushing straight after a meal may damage the top of your teeth;__as__ a result, you may feel pain when eating.

　　解析：句意：飯后立即刷牙會(huì)對(duì)牙齒表層造成傷害，結(jié)果是吃飯時(shí)會(huì)感到疼痛。as a result結(jié)果。

　　3.Many difficulties have __arisen__(arise) as a result of the change over to a new type of fuel.

　　解析：句意：由于換成了一種新型燃料，許多困難出現(xiàn)了。arise意為“出現(xiàn)，產(chǎn)生”，符合句意。

　　4.Could you tell me how to deal __with__ these problems so that I will be able to adapt to the life in Guiyang?

　　解析：句意：你能告訴我為了適應(yīng)貴陽(yáng)的生活，我應(yīng)該如何應(yīng)對(duì)這些問(wèn)題嗎?deal with“處理，應(yīng)對(duì)”，和how連用。

　　5.The mother thanked the young man again and again, without __whose__help her son would have been killed by the passing car.

　　解析：考查定語(yǔ)從句關(guān)系詞。句意：媽媽一遍又一遍的感謝那個(gè)年輕人，要不是他的幫助，她的兒子會(huì)被這個(gè)路過(guò)的車撞死。后面定語(yǔ)從句中，缺少定語(yǔ)，故用關(guān)系代詞whose。

　　6.He made __such__ little progress __that__ his parents felt disappointed.

　　解析：考查結(jié)果狀語(yǔ)從句。中心詞是名詞，所以用such，后面句子中不缺少成分，不能用as而只能用that。

　　7.So much work did we have to do __that__ we were so exhausted.

　　解析：由語(yǔ)境可知，本題考查“so...that...”句型。句意為：我們要做的工作如此多以至于我們都精疲力竭。

　　8.(2016·天津，7改編)__As__the average age of the population increases, there are more and more old people to care for.

　　解析：考查連詞。句意：隨著人口平均年齡的增長(zhǎng)，越來(lái)越多的老人需要照顧。

　　9.—Why do you look so worried?

　　—My computer broke down and my essay __has_been_left__(leave) unfinished since.

　　解析：考查動(dòng)詞時(shí)態(tài)和語(yǔ)態(tài)。句意為：——為什么你看起來(lái)如此著急呢?——我的電腦壞了，而且我的論文還沒(méi)有完成。根據(jù)題干中的時(shí)間狀語(yǔ)詞since可知，此處應(yīng)用現(xiàn)在完成時(shí)，而且主語(yǔ)my essay和謂語(yǔ)動(dòng)詞之間是動(dòng)賓關(guān)系。

　　10.Misunderstandings __arising__(arise) from lack of social communication, unless __handled__(handle) properly, may lead to serious problems.

　　解析：考查非謂語(yǔ)動(dòng)詞。句意：由于缺乏社會(huì)交流而造成的誤解，如果得不到恰當(dāng)?shù)奶幚?，可能?huì)導(dǎo)致嚴(yán)重的問(wèn)題。第一空，misunderstandings和arise為邏輯上的主謂關(guān)系，所以用arise的現(xiàn)在分詞形式，arise from意為“由……產(chǎn)生”。第二空，handle和misunderstandings為邏輯上的動(dòng)賓關(guān)系，所以用handle的過(guò)去分詞形式。

　　11.We won't start the work until all the preparations have__been_made__(make).

　　解析：本題考查動(dòng)詞的時(shí)態(tài)和語(yǔ)態(tài)。句意：直到所有的準(zhǔn)備工作都做完了，我們才開始工作。根據(jù)主句中的關(guān)鍵詞語(yǔ)won't start(不會(huì)開始)是一般將來(lái)時(shí)知，until引導(dǎo)的時(shí)間狀語(yǔ)從句用一般現(xiàn)在時(shí)或現(xiàn)在完成時(shí)代替將來(lái)時(shí)。

　　12.You'd better write down her phone number before you __forget__ (forget) it.

　　解析：句意：趁著還沒(méi)有忘記，你最好把她的電話號(hào)碼寫下來(lái)。before本意是“在……之前”，在句中引導(dǎo)時(shí)間狀語(yǔ)從句，根據(jù)具體的語(yǔ)境在句中可譯為“趁著……，以免……”，從句中用一般現(xiàn)在時(shí)態(tài)表示將來(lái)的動(dòng)作。根據(jù)語(yǔ)境可知forget為將來(lái)的動(dòng)作，故此處用一般現(xiàn)在時(shí)表示將來(lái)。

　　13.While intelligent people can often __simplify__(simple) the complex, a fool is more likely to complicate the simple.

　　解析：根據(jù)While可知，前后句是轉(zhuǎn)折關(guān)系。句意：聰明的人可以簡(jiǎn)化復(fù)雜的事情，愚蠢的人使簡(jiǎn)單的事情復(fù)雜化。simplify簡(jiǎn)化。

　　14.John thinks it won't be long__before__he is ready for his new job.

　　解析：句意：John認(rèn)為用不了多久他就會(huì)為自己的新工作做好準(zhǔn)備。It won't be long before...是個(gè)固定句型，意為“用不了多久就……”。

　　15.Jenny nearly missed the flight as a result __of__doing too much shopping.

　　解析：句意：由于購(gòu)物太多，珍妮差點(diǎn)誤了航班。as a result of“由于……的結(jié)果”。

　?、? 完成句子

　　1.__From__ __then__ __on__ (從那時(shí)起), Tom made up his mind to become an outstanding artist.

　　2.He won a gold medal in the Olympic Games.__As__ __a__ __result__(結(jié)果), he was praised by all.

　　3.__In__ __a__ __way__(在某種程度上), I can see what you mean and I totally accept your point of view as well.

　　4.In modern society, children must be taught how to __deal__ __with__(處理/對(duì)付) different situations in their life.

　　5.A true friend with a sense of responsibility is a friend who can always __share__(分享) happiness and sorrow __with__you.

　　6.在電腦的幫助下，學(xué)生在家上課將成為可能。

　　__With__ __the__ __help__ __of__ __the__ __computer__， it will be possible for students to have classes at home.

　　7.這條狗太聰明了，主人不在時(shí)它會(huì)為主人看家。

　　The dog is so clever that he can __watch__ __over__ his master's house while the master is away.

　　8.湯姆和瑪麗很快成為好朋友，畢竟，他們有許多共同之處。

　　It __look__ __a__ __short__ __time__ __before__ Tom and Mary became good friends;__after__ __all__， they __have__ __a__ __lot__ __in__ __common__.

　　9.隨著時(shí)間的推移，任何有足夠優(yōu)秀的選手的國(guó)家都可以參加奧運(yùn)會(huì)。

　　__As__ __time__ __goes__ __by__， any country can take part in the Olympic Games if their athletes are good enough.

　　10.像我們這樣好的隊(duì)?wèi)?yīng)該能擊敗任何競(jìng)爭(zhēng)者。

　　A team __as__ __good__ __as__ ours should be able to mop the floor with any competitor.

　　Ⅲ. 單句改錯(cuò)

　　1.Personal, I disagree with you on your plan.

　　__Personal→Personally__

　　2.Saying you are sorry won't make out the damage of breaking the vase.

　　__out→up__

　　3.I think we should work out a strategy to deal this situation.

　　__deal后加上with__

　　4.They helped each other in studies and as the result they made great progress and became good friends.

　　__the→a__

　　5.Under the help of the computer, it is now easy to deal with and share information.

　　__Under→With__

　　6.With time went by, I gradually adapted myself to the school life.

　　__with→As或went→going__

　　7.In the way，I'm glad you made that mistake，for it will serve as a warning to you.

　　__the→a__

　　8.Anyone he breaks the law will be punished.

　　__he→who__

　　9.Do you have any concrete thoughts on what to deal with this difficulty?

　　__what→how__

　　10.The environment of Hong Kong is very outstanding that it is chosen as one of the world's most livable cities.

　　__very→so__

　　Ⅳ. 語(yǔ)篇填空

　　My first football competition was in Nagoya, Japan several years ago.Last year our team went to Seattle, Washington in the USA.We ①__won__(win) second place.Personally, I think the team ②__that/which__ won first place cheated.They had developed ③__a__ new type of program just ④__before__ the competition. So we need to encourage our programmer ⑤__to_improve__(improve) our intelligence too. We are determined to create an even ⑥__better__(good) system. In a way our programmer is like our coach. She programs us with all the possible moves ⑦_(dá)_she__ has seen while watching human games. Then she prepares reliable moves to use ⑧__if__ a new situation arises. In this way I can make up new moves ⑨__using__(use) my “artificial intelligence”.I would really like to play against a human team, for I have been programmed to act just like them. After all, ⑩__with__ the help of my electronic brain which never forgets anything, using my intelligence is what I'm all about!

　?、? 教材原句

　　1.Please take me to a distant land __where__ I can find the animal __which/that__ gave fur to make this sweater.

　　解析：考查定語(yǔ)從句。第一個(gè)從句中不缺主語(yǔ)和賓語(yǔ)，先行詞表地點(diǎn);第二個(gè)定語(yǔ)從句中缺少主語(yǔ)，指物。

　　2.You should pay more attention to the rainforest __where__ I live and appreciate how the animals live together.

　　解析：考查定語(yǔ)從句。從句中不缺主語(yǔ)和賓語(yǔ)，先行詞表地點(diǎn)。

　　3.The flying carpet travelled so fast __that__ next minute they were in Zimbabwe.

　　解析：考查“so+adj./adv.+that”句式，意為“如此……以致于……”。

　　4.It contains a __powerful__ (power) drug which __affects__ (affect) mosquitoes.

　　解析：第一空考查詞形轉(zhuǎn)換，應(yīng)用形容詞作定語(yǔ);第二空考查主謂一致，定語(yǔ)從句的謂語(yǔ)單復(fù)數(shù)形式取決于先行詞，該句先行詞drug為單數(shù)。

　　5.In Tibet Daisy saw an antelope __looking__ (look) sad.

　　解析：考查分詞作賓補(bǔ)。強(qiáng)調(diào)動(dòng)作正在進(jìn)行，且antelope與look之間為主動(dòng)關(guān)系，故用looking。

　　6.Daisy turned around and found that she __was_being_watched__ (watch) by an elephant.

　　解析：考查動(dòng)詞時(shí)態(tài)。分析turned around以及found可知watch正在進(jìn)行且與主語(yǔ)為被動(dòng)關(guān)系。

　　7.Tourists were allowed __to_hunt__ (hunt) only a certain number of animals if they paid the farmers.

　　解析：考查“be allowed to do sth.”，因此填不定式。

　　8.Flying carpet, please show me a place __where__ there's some wildlife protection.

　　解析：考查定語(yǔ)從句。從句中不缺主語(yǔ)和賓語(yǔ)，先行詞表地點(diǎn)。

　　9.Nobody knows for sure why and how dinosaurs disappeared from the earth in __such__ a short time.

　　解析：考查“such+a(n)+adj.+n.”結(jié)構(gòu)。

　　10.They were surprised __to_find__ (find) that these dinosaurs could not only run like the others __but__climb trees.

　　解析：第一空考查表感情的形容詞后跟不定式的用法;第二空考查“not only...but also...”結(jié)構(gòu)。

　?、? 話題寫作

　　用本單元所學(xué)知識(shí)完成下列句子，并按照邏輯連成短文。

　　1.近來(lái)，高智商的機(jī)器人出現(xiàn)了。

　　High intelligent robots__have_arisen__recently.

　　2.有些可以打字、發(fā)信號(hào)。

　　Some can__type_and_signal__.

　　3.有些能處理一些重要事情。

　　Some can__deal_with__some important things.

　　4.在某種程度上說(shuō)，電腦改變了我們的生活。

　　__In_a_way__，computers__have_changed_our_life__.

　　5.許多學(xué)生對(duì)電腦如此著迷以至于在電腦上花費(fèi)了太多的時(shí)間。

　　Many students become so crazy about computers that they spend too much time on them .

　　6.部分學(xué)生在考試中失敗。

　　Some of the students fail in the exams.

　　7.但不管怎么說(shuō)電腦在我們的日常生活中起很重要的作用。

　　Anyhow computers play an important part in our life.

　　組篇公式：定語(yǔ)從句連接句1、2+過(guò)渡詞。

　　答案：

　　High intelligent robots have arisen recently, some of which can type, signal, and even deal with some important things. In a way, computers have changed our life. However, many students become so crazy about computers that they spend too much time on them. As a result, some of the students fail in the exams.Anyhow, computers play an important part in our life.