新概念英語第二冊48課講解及課后答案.doc

1、新概念英語第二冊第48課課文重難點(diǎn) Further notes on the text 1Dentists always ask questions when it is impossible for you to answer. 牙科醫(yī)生們總是在你無法作出回答的時(shí)候向你提出問題。在when引導(dǎo)的時(shí)間狀語從句中，it為先行主語，代指后面的不定式，for+人稱代詞名詞說明不定式表示的動(dòng)作是誰做的：It is not hard for you to help them.你幫助他們并不難。It was a mistake for me to come to the party.我來參加晚會(huì)是錯(cuò)誤的。

2、impossible通常不以人作主語，而以不定式或從句作主語：It is impossible for him to help you.他不可能幫你。It is impossible that he will help you.（譯文同上）2In answer to these questions I either nodded or made strange noises. 作為對這些問題的回答，我不是點(diǎn)頭，就是發(fā)出奇怪的聲音。（1）in answer to為固定短語，在這里表示作為對的回答：In answer to my question, Dan shook his head.作為對我的

3、問題的回答，丹搖了搖頭。這個(gè)短語的另一個(gè)含義是響應(yīng)的請求：In answer to my request, he wrote a letter to George.應(yīng)我的請求，他給喬治寫了封信。（2）made strange noises, 發(fā)出奇怪的聲音。我并不是有意發(fā)出這些聲音，而是因?yàn)樽炖镉兴幟蓿窒牖卮疳t(yī)生的話造成的。3Meanwhile, my tongue was busy searching out the hole where the tooth had been. 與此同時(shí)，我的舌頭正在忙著尋找剛拔掉的那顆牙的傷口。（1）副詞meanwhile表示在此期間、與此同時(shí)：He w

4、ont come until ten oclock. Meanwhile you can have a rest.他10點(diǎn)以前不會(huì)來。在此期間你可以休息一下。Mary was talking to me about her new dress. Meanwhile I was thinking about something else.瑪麗在和我講她的新衣服。與此同時(shí)我卻在想著其他事情。（2）search out表示找出、查出、搜出等：Have you searched out the books I needed?你找出我需要的書了嗎？（3）where the tooth had been用

5、的是過去完成時(shí)，因?yàn)樵诿枋鲞@件事的時(shí)候那顆牙已經(jīng)不在了。牙齒尚在的時(shí)間是過去的過去。4When the dentist at last removed the cotton wool from my mouth當(dāng)那位牙醫(yī)最后將藥棉從我嘴中取出時(shí)remove可以表示拿去、除去、去掉，通常結(jié)構(gòu)為remove +名詞+from；它也可以單獨(dú)使用：Ive removed that picture from the wall.我已經(jīng)把那幅畫從墻上拿走了。Please remove your hat.請摘下你的帽子。語法 Grammar in use復(fù)習(xí)第2645課的部分語法It is one of th

6、e ugliest faces(that) I have ever seen.這是我見過的最丑陋的頭像之一。（that在關(guān)系從句中作賓語，可省略）There arent many students who sing as well as she does.在學(xué)生當(dāng)中沒幾個(gè)人唱歌像她那么好。（who在關(guān)系從句中作主語，不可省略）People are not so honest as they once were.人們不再像以前那樣誠實(shí)了。（not so/ asas用于比較狀語從句）He had hardly had time to settle down when he sold the hou

7、se.他還沒等安頓下來就賣掉了房子。（hardlywhen用于過去完成時(shí)）No sooner had I sat down than he came in.我剛坐下他就進(jìn)來了。（no soonerthan用于過去完成時(shí)；否定詞位于句首時(shí)句子要倒裝）The box was so heavy that she couldnt lift it.箱子太重了，她搬不起來。（so+形容詞+that表示如此以至于）The thief got such a fright that he dropped the bag.那個(gè)小偷嚇得把提包都扔了。（sucha+名詞+that表示如此以至于）Billy is no

8、t at home at present. Hes at school.比利現(xiàn)在不在家，他在學(xué)校。（at+名詞的用法）詞匯學(xué)習(xí) Word study1pull vt.,vi.（1）拉，拖，牽，扯：I felt someone pulling my arm.我覺得有人在拉我的胳膊。They pulled the heavy bag into a room.他們把那個(gè)重袋子拖到一個(gè)房間里。You have to pull hard.你得用力拉。（2）拔，抽：Youve pulled out the wrong teeth!你拔錯(cuò)了牙！He pulled an address book from h

9、is pocket.他從口袋里抽出一本通訊錄。2nod（1）vt.,vi. 點(diǎn)頭，點(diǎn)頭示意招呼：I asked him if he wanted to come and he nodded his head.我問他是否想來，他點(diǎn)了點(diǎn)頭。When we meet each other in the office, he always nods at me.我們在辦公室見面時(shí)，他總是向我點(diǎn)頭打招呼。（2）vi. 打盹，打瞌睡（常與off連用）：He used to nod off during the French class.他過去常在上法語課時(shí)打瞌睡。As he was very tired,

10、 he nodded over his reading.因?yàn)樗芾郏运贿吙磿贿叴蝽?。練?xí)答案 Key to written exercises1難點(diǎn)練習(xí)答案A 1 which 2 denied 3 fetched4 too 5 jobs 6 Oneawho7 past 8 next 9 watching10 continually 11 remarked 12 robbedB (sample sentences)Im sorry to cause you such trouble.Have you ever seen such beautiful pictures before? It

11、s such a nice day that we cant stay indoors!Im feeling so tired that I shall have to stop work.C 1 He had no sooner come home than they rang him up from the office.2 The plane had no sooner taken off than it returned to the airport.D 1 made 2 do 3 make 4 do 5 Do 6 make 7 made8 doesE 1 out 2 up 3 up

12、4 upaway 5 up 6 out 7 back 8 up with 9 up withF (sample sentences)If you dont stop that noise at once, youll have to go to bed. Im at a loss to know what to do.Its stopped raining at last!Hes very busy and cant accept any more work at present. Ill be at home tonight.2多項(xiàng)選擇題答案1c 2b 3c 4b 5a 6c7b 8 b 9

13、 d 10 a 11b 12 c新概念英語第二冊課后習(xí)題答案詳解 Lesson 48 1. c 根據(jù)課文第 3-4 行 I tried to say something, but my mouth was full of cotton wool 可判斷只有 c. There was something in his mouth 最符合課文的真實(shí)情況，這也是作者不能講話的唯 一原因，其他 3 個(gè)選擇都不是原因，所以只能選 c. 2. b 根據(jù)課文第 8-10 行 I suddenly felt very worried,when the dentist at last removed the c

14、otton wool I was able to tell him that he had pulled out the wrong tooth 可以判斷 b. he thought the dentist had pulled out the wrong tooth 是作者著急的唯一原因， 其他 3 個(gè)選擇 都不是他著急的原因，所以選 b. 3. c 只有選 c. cannot 才能使句子同前一句 It is impossible for him to answer.(他是不可能回答的)意義相同,所以 c.是正確 答案.a. might not 與 d .may not 都不符合題目意思.

15、b. could not 時(shí)態(tài)不對. 4. b 本句是將前一句中表示命令請求的間接引 語變成了直接引語（祈使句） 。 a. To rest 是動(dòng)詞不定式，不能做祈使句的謂語； c. Do you rest 是疑問句，不能表示請求； d. Resting 是動(dòng)名詞也不能做祈使句的謂語； 只有 b. Rest 可以做祈使句的謂語,所以選 b. 5. a 本句是將前一句中的間接疑問句.how my brother was 變成直接疑問句， 因此時(shí)態(tài)和語序都要 作相應(yīng)改變。 b. your brother was, c. your brother is 都不是疑問 句語序，所以都不對。 d. was

16、your brother 語序正確， 但時(shí)態(tài)不對：間接引 語是過去時(shí)，直接引語應(yīng)該是現(xiàn)在時(shí)才正確。只有 a. is your brother 語序和時(shí)態(tài)都正確，所以應(yīng)該選 a. 6. c 這是一個(gè)疑問句， It likes you , b. Does it a. like you 和 d. Like you 這 3 個(gè)選擇都意思不通，不符合題目意思，只有 c. Do you like 意思通順，符合疑問句語序，因此只能 選 c. 7. b 介詞 by 后面加動(dòng)名詞可以表示方式。 本 句只能選 b. nodding(點(diǎn)頭)，因?yàn)樗莿?dòng)名詞，可以 放在 by 后面作方式狀語。 其他 3 個(gè)選擇都不

17、能放在介詞 by 后面，所以選 b. 8. b 本句需要選一個(gè)同前一句中時(shí)間短語 for a while (一會(huì)兒)意義相同的短語。 quietly (安靜地)， a. c. while he spoke to me (當(dāng)他跟我說話時(shí))，d. for a long time (很久)這 3 個(gè)選擇都與 for a while 的意義不符。 只有 b. for a short time (短時(shí)間)同 for a while 的含義相同，因此選 b. 9. d a. assembly (集會(huì)，聚會(huì))，b. gathering (聚 集，收集抽象的東西，如消息等)，c. congregation (聚集，聚合) ， d. collection (收集，收藏如郵票，硬幣等)，只有 d 最適合這個(gè) 句子，其他 3 個(gè)選擇都不能與火柴盒連用，所以選 d. 10. a 前一句 I nodded(我點(diǎn)頭)表示同意，只有 a. agreed (同意)才是這一動(dòng)作所表達(dá)的含義。 said b. no (說不)，c. shouted (高喊)，d. whispered (耳語) 這 3 個(gè)選擇都不是 nodded 所表達(dá)的含義，所以選 a. 11. b 本句需要選出同前一句中的 Meanwhile(同時(shí))意義相同的詞或短語。 a. However(不過，然而)；b. In