5．The student’s puzzled look suggested that she failed to________what I said. A．take out

　　B．pick out C．figure out

　　D．find out

　　解析：選C.考查動詞短語辨析.句意：那個學生迷惑的表情表明她沒能理解我所說的.A項“拿出”;B項“挑選”;D項“查明”均不符合語境.C項“理解,想出”正確.

　　6．I________when there came a knock at the door. A．am going to bed B．just about to go to bed C．was about to go to bed D．have gone to bed

　　解析：選C.be about to do通常與when引導的從句連用.A、D兩項時態不符合題意;而B項句子成分不完整.

　　句型巧析 1(教材P25)Without the breakthroughs of these pioneers in science and technology,whether lucky or planned,the world as we know it today would have been a completely different place.　

　　沒有科技上的這些尖端突破,無論是好運帶來的還是按計劃取得的,我們今天的世界將完全是另一個樣子. 【句法分析】 (1)without可用于虛擬語氣.當虛擬語氣表示與現在事實相反時,從句的謂語動詞用“過去式(be的過去式用were)”,主句的謂語動詞用“would/could/should＋動詞原形”構 成. (2)句中的whether...or意為“不論……還是……”，引導狀語.它可以連接并列的成分.有時該短語結構也可以作賓語. ①We human beings could not survive without all the plants and animals around us. 如果我們周圍沒有植物和動物,人類就不能生存. ②We couldn’t finish so quickly without your help. 沒有你的幫助我們不可能完成得如此快. ③Whether true or false,the story is interesting. 不管這個故事是真是假,它很有趣. ④I really don’t care whether he will stay or not. 我真的不在意他要留下來還是要走.

　　⑤I was wondering whether to go upstairs or to follow Maxim to the library. 我正不知是該上樓,還是該跟馬克西姆去圖書館.

　　2(教材P25)There is no doubt about it.　關于這一點是毫無疑問的.

　　【句法分析】“There is no doubt about sth.”是一個常用句型。它表達的含義是“毫無疑問，不用懷疑”。There is no doubt that...,毫無疑問……,There is some doubt whether...,是否……還有些疑問(1)在肯定句中doubt后面接whether。 (2)在否定含義的句中doubt后面接that. (3)當doubt是動詞時后面接的從句也同樣適合此特點. ①There’s no doubt that he’s lying to all of us. 毫無疑問他在對我們大家撒謊. ②There’s_some_doubt_whether Jack will be made monitor. 杰克是否會被選為班長還有些疑問.

　　③Fred doesn’t doubt that he will rank the first in the final. 弗雷德毫不懷疑在決賽中他將排名第一. ④There_is_no_doubt_about what has happened. 對所發生的事是毫無疑問的.

　　跟蹤訓練 Ⅰ.完成句子 1．Without your help,I__________________________(不會完成)the task successfully. 2．__________________________(毫無疑問)to protect nature is to protect ourselves. wouldn’t have completed There is no doubt that Ⅱ.單項填空 1．If________,give me a ring and I will do whatever I can to help. A．in doubt　 B．no problem C．no hurry

　　D．no doubt 解析：選A.考查介詞短語.句意：如果有疑問的話就打電話給我,我將全力幫你.in doubt“懷疑,不確定”.

　　2．He said that very clearly so that nobody was in any________about what was meant. A．doubt

　　B．case C．question

　　D．wonder 解析：選A.句意：他說得很明確了,因此沒有人對他的意思表示懷疑.doubt“懷疑”;case“情況”;question“問題”; wonder“驚奇,奇跡”.

　　3．Without electricity,human life________quite different today. A．is

　　B．will be C．would have been

　　D．would be

　　解析：選D.考查虛擬語氣的用法.表示與現在事實相反時,條件從句謂語動詞用過去式,主句謂語動詞用would＋動詞原形,這里用Without electricity(＝If there were no electricity)引出了虛擬條件.

　　4．(2024·河南鄭州質檢)By the time he realizes the mistake he______,it will be too late for him to do anything about it. A．has made

　　B．made C．makes

　　D．will make

　　解析：選A.句意：在他意識到他所犯的錯誤的時候,再采取任何措施已經為時已晚.顯然,在他意識到犯錯誤的時候,他已經犯下錯誤,因此應用現在完成時.

　　溫馨提示 請做課時作業　選修七　Unit 20 本部分內容講解結束 按ESC鍵退出全屏播放 解析：選D.句意：我過去和朋友們靠書信交流,而現在用互聯網更方便了.correspond with“與……通信”;meet with“碰見”;come up with“提出”;put up with“容忍”.

　　4．It is reported that the government will give all private________to flood-stricken areas. A．relations

　　B．intonations C．donations

　　D．dominations

　　解析：選C.donation 捐贈(物);relation 關系;intonation 語調;domination 支配,控制.句意：據報道政府將把所有私人捐贈交給遭受洪災的地區. 5．Don’t be nervous.The police will________you to find her address. A．thrill

　　B．enlarge C．assist

　　D．outline

　　解析：選C.assist sb.to do...“幫助某人做某事”,C項符合句意.句意：別緊張,警察會幫助你找到她的地址的.thrill“使得……驚恐”;enlarge“擴大”;outline“勾出……輪廓”.

　　短語細解 8lead to　通向,導致(to為介詞,后跟名詞或動名詞) (教材P30)This invention made it much quicker and easier to reproduce written work and led_to the first ever mass- production of books and literature.　 這項發明使得復制作品變得更省時、省力,從而實現了書籍和文學作品的首次批量生產.

　　歸納拓展

　　助 記

　　①The thieves cut the wires leading to the surveillance cameras.小偷切斷了連接監視攝像頭的電線. ②This crisis led to the downfall of the government. 這一危機使當時的政府倒臺了. ③His carelessness led_to his failure in the exam. 他的粗心大意導致他沒有通過考試.

　　9be about to　即將,就要 (教材P24)Edwin Hubble was_about_to make astronomy’s greatest breakthrough of the century.　埃德溫·哈勃即將作出這個世紀文學上的最重大的突破.

　　辨析be about to,be to do sth.,be going to be about to 表示即將要發生的動作,不表示按計劃安排的動作,不與at once,immediately或表示將來的時間狀語連用. be to do sth. 表示按計劃或職責、義務要求必須做的事. be going to 表示“打算,想要”,也可用來表示很可能發生的事或自然現象;類似的還有be coming,be leaving等. ①Don’t go out now.We are about to have lunch. 現在別出去了,就要吃午飯了. ②When is the plan to_be put into practice? 這個計劃何時會被用于實踐？

　　③I’m not going to tell you the secret as you have a big mouth.我不打算告訴你這個秘密,你太多嘴了.

　　10on purpose　故意地

　　歸納拓展 ①You sometimes hurt yourself by accident but you don’t hurt yourself on purpose. 你有時會偶然傷害自己,但你不會故意傷害自己. ②I wouldn’t go shopping on_purpose_for buying a pair of socks.我不會只為買一雙襪子而去購物.

　　11figure out　理解,弄明白;計算出 (教材P24)．..,scientists figured_out how to split the atom...　……科學家弄明白怎樣去分裂原子……

　　①I can’t figure out what he’s trying to say. 我弄不懂他想說什么. ②Have you figured_out how much the travel to Beijing will cost？去北京旅行要多少錢你計算出來了沒有？ 跟蹤訓練 Ⅰ.選詞填空 wonder about，base on，figure out，come out，carry out，give away，be suitable for，get across，take over，make up for 1.Next you need to________________how to overcome those obstacles. 2．After signing the contract,neither of the two sides can________________the content to a third one. figure out give away 3．Mr Green feels that he is old,so his son will soon________________his business. 4．Can you give me some advice on how to________________the time I have lost? take over make up for 5．No matter what difficulty you will meet with,________________your plan. 6．Did what you explain________________to the students? 7．I think this course will________________four persons.

　　carry out get across be suitable for 8．The new problems______________ along with their deeply discussion. 9．Scientists________________that too,and they are a step closer to solving the mystery now. 10．The theory________________a series of wrong assumptions. come out wonder about is based on Ⅱ.單項填空 1．They really have a great time too,designing everything,drawing the blue prints,________the angles and so on. A．looking out　 B．taking out C．finding out

　　D．figuring out

　　解析：選D.句中的the angles(角度)必須通過計算才能得到.又如：It took me hours to figure those problems out.我花了好幾個小時才算出那些題.

　　2．He is very stubborn;don’t________to his opinion.Just stick to your own. A．give in

　　B．give up C．give away

　　D．give out

　　解析：選A.考查give短語辨析.句意：他很固執,不要向他的觀點讓步,堅持你自己的觀點.give in(to...)“(向……)屈服”; give up“放棄”;give away“泄露(秘密),贈送”;give out“用盡;分發;釋放”.

　　3．Have you heard that CBS Records was________by Sony? A．taken away

　　B．taken down C．taken over

　　D．taken up

　　解析：選C.句意：你聽說哥倫比亞廣播公司的唱片公司已被索尼公司收購了 嗎？take away“拿走,帶走”;take down“拿下,記下”;take over“接替,接管”;take up“開始從事,著手處理”.因此選C. 4．The teacher thought his students needed more practice and learning skills________much homework. A．other than

　　B．rather than C．more than

　　D．in place of

　　解析：選B.句意：老師認為他的學生需要更多的實踐和學習技巧而不是太多的作業.other than除了;rather than而不 是;more than多于;in place of代替.

　　歸納拓展 ①(2010·高考浙江卷)The assistant seemed a sincere man.助手似乎是一個真誠的人. ②I was employed to assist the manager with his duties. 我受雇協助經理工作.

　　③One of her fellow passengers came to her assistance. 同車的一個乘客過來幫她. ④With_the_assistance_of my cousin we paddled across the river in the dark to participate in a private meeting. 在我表弟的幫助下,我們趁天黑劃過河去,參加一個秘密會議.

　　⑤(2011·高考浙江卷)The manager was worried about the press conference his assistant was giving in his place but,luckily,everything was going on smoothly. 經理擔心著他的助手代替他所舉辦的資訊發布會.幸運的是,一切進展順利.

　　2discrimination　n．差別對待;歧視 (教材P20)．..,as everyone will have jobs and discrimination will be a part of the past.　……,因為每一個人都會有工作,歧視將成為歷史.

　　歸納拓展 ①Discrimination against blacks is still common. 歧視黑人仍是普遍現象. ②They organized to fight against racial_discrimination. 他們組織起來為反對種族歧視而斗爭.

　　3dilemma　n．困境,進退兩難的窘境 (教材P24)If you had to choose the single most important discovery of the 20th century,you would have a real_dilemma_on your hands.　如果要選擇二十世紀最重要的發現,你將面臨一個真正的難題.

　　歸納拓展 ①Faced with a dilemma,he was determined to hold on. 面臨著進退兩難的困境,他決定頑強地堅持下去.

　　②I’m in_a_dilemma_about this job offer. 對于提供的這份工作我不知道是接受還是不接受. ③The bad weather put us into a dilemma. 糟糕的天氣使我們進退兩難.

　　4donate　vt.捐贈;贈送 (教材P24)Medical advances ranged from discovering the causes of diseases under microscopes to surgical procedures replacing diseased organs with donated ones.　醫學的進步包括從在顯微鏡下發現疾病的起因到用捐獻器官替代病變器官這樣的外科手術過程.

　　歸納拓展 ①In the Yushu earthquake,most people throughout the country donated money,food,clothing and so on. 在玉樹地震中,全國人民捐獻出錢、食物、衣服等東西. ②She donated a large sum of money to the charity. 她捐了一大筆錢給慈善機構. ③Local people lined up to donate_blood_for the brave girl. 當地群眾排隊給這位勇敢的姑娘獻血.

　　5correspond　v．相一致;相聯系;通信 (教材P24)．..the way we_correspond went from writing letters to emailing.　……我們通信的方式從寫信變成發電子郵件.

　　歸納拓展

　　助 記

　　①We’ve corresponded with each other for years but I’ve never actually met him. 我們已互相通信多年了,可是我從未見過他本人. ②Your account of events corresponds with hers. 你說的情況跟她說的相符. ③I’m sure my actions will correspond_with my words. 我保證,我將言行一致. 6permit　vt.允許,準許　n．許可證 (教材P27)You are not permitted to work if you are on a student visa.　如果你沒有得到學生簽證,是不會被允許工作的.

　　歸納拓展 ①(2010·高考天津卷)Please note that,for safety reasons,pushchairs are not permitted in the State Apartments. 請注意,由于安全原因,折疊式幼兒小推車是不允許進入國家公寓的. ②She took the car without_permission. 她未經許可擅自使用了汽車.

　　7declare 　vt.宣告,宣布,聲明 (教材P28)NASA declared that a rock from Mars proved...　NASA宣稱來自火星的一塊巖石表明……

　　歸納拓展 ①They declared against building a new bridge. 他們聲稱反對修建新橋. ②He declared_that he would never agree. 他聲稱他不會同意.

　　跟蹤訓練 Ⅰ.品句填詞 1．Hundreds of people are still in the water,waiting to be__________(營救)． 2．We have time and time again__________(聲明)that we will never be the first to use nuclear weapons. rescued declared 3．I’ll lend__________(幫助)to them. 4．After many years,he was given__________(允許)to look for gold in South America. 5．All__________(捐獻的)blood is tested for HIV and other infections. assistance permission donated Ⅱ.單項填空 1．The judges had different ideas about the results,so it was two hours before the final results were ________. A．carried out　 B．let out

　　C．announced

　　D．declared 解析：選C.句意：法官們對結果持不同的意見,因此兩個小時后才公布最終結果.announce多用于表示所關心或感興趣的事情,尤指資訊之類的消息;declare多用于宣戰、議和等.

　　2．Before building a house,you will have to________the government’s permission. A．get from

　　B．follow C．receive

　　D．ask for

　　解析：選D.ask for one’s permission是固定搭配,意思是“請求某人的允許”.

　　3．I used to________my friends by letters while now the Internet is more convenient. A．meet with

　　B．come up with C．put up with

　　D．correspond with

　　欄目導引 基礎盤點?自測自評 考點串講?講練互動 選修七 Unit 20　New Frontiers——新領域 選修七 1．...have no/some trouble/difficulty/a hard time/a difficult time(in)doing sth.＝There is no/some difficulty/trouble(in)doing sth.(有/沒有困難做某事)

　　句型公式?妙筆生花 People from the two countries do not have any difficulty in understanding each other. 來自那兩個國家的人們在相互理解上是沒有困難的.

　　There is no difficulty in solving this social problem. 解決這個社會問題毫無困難. 2．There is no need/use/harm/hurry in doing sth.沒必要/用處/危害/不急于做某事

　　There is no harm in using the environmentally friendly products.用環保產品是沒有害處的. There is no hurry in running to school for time is still enough.沒有必要匆匆忙忙去學校,因為時間還充足呢.

　　3．It’s no use/good/worth doing sth.做某事沒用處/好處/價值 It’s no use talking with him.He won’t listen to you. 跟他談沒用,他不會聽你的.

　　4．It’s a waste of time/money/energy doing sth.做某事浪費時間/金錢/精力 It’s a waste of time watching TV programme as this. 像這樣看電視節目純粹浪費時間.

　　基礎盤點?自測自評 核心單詞 1．__________vt.投遞(信件、郵包等) 2．__________n．突破 3．__________adj.意識到的,知道的 4．__________adj.經常的,不斷的 deliver breakthrough aware constant 5．__________vt.余下,留下;vi.保持,仍是→__________adj.仍需做的,還需處理的 6．__________n．精力,能量 7．__________v．延伸;展開 8．__________vt.評價;評估→__________n．評價,評估 remain remaining energy spread assess assessment 9．__________vt.聲明;斷言→__________n．聲明 10．__________vt.讓……離開;遣散;解散;解雇 11．__________vt.幫助;協助→assistance n．幫助 12．__________n．后者 declare declaration dismiss assist latter 13．_____________n．差別對待;歧視→____________vt.區別;辨別;歧視 14．__________n．平等→__________adj.平等的;vt.等于 15．He_______(捐獻)all his possessions to charity and the_________(捐贈物) would be used for children in Africa.