新概与念英语第二册90课课后习题详细答案.doc

新概念英语第二册课后习题答案详解Lesson 90 练习答案 Key to written exercises 1．关键句型练习答案 B 1 They have had special cages made to protect the divers from these monsters. 2 The oil companies have had the rigs repaired frequently. 3 The divers often have to work in total darkness. 4 He has had a book published. 5 We have to protect fish stocks. 6 We have not had the letter sent to his new address. 7‘I will have the package sent to you,’she promised. 8 Do you have to go so soon? 9 Are you going to have this suit cleaned? 10 When will you have this loose handle fixed? 11 I have to take this cap in to have new brakes fitted. 12 How long is it since you had to see a doctor? 13 The doctor told me I had to get more exercise. 2．难点练习答案 1 is? 2 is? 3 are? 4 Is? 5 have 3．多项选择题答案 1. b根据课文第1-3行可以判断，只有b.与课文所暗示的情形相符合，并能说明为什么“听说北海石油钻井平台上的潜水员受到大雨的恐吓，让人很吃惊”的原因。而其他3个选择都不能说明这个原因。所以选b. b.雨已经很少见了。 c. it is not common for fist to grow very large.雨长得很大已经不常见了。2. c根据课文第6-7行可以判断出只有c. the fish are huge(鱼是巨大的)是课文所暗示的情形，并能说明为什么“潜水员受到惊吓”，其他3个选择虽然都是课文所提及的内容，但不是潜水员受到惊吓的原因，所以都不对，只有c.是正确的答案。3. c该句中的These eating varieties(这些食用品种)指的是鱼类，它的大小不应该用“深度”来衡量。因此b. depth 和d. deep都不符合题目意思。 a. length(长度)，和c. long(长)都符合题目意思，但a.不符合语法，应该是in length 才对。 c.合乎语法，twelve feet long就等于twelve feet in length,所以只有c是对的。4. c前一句中的total absence of 意为“一点没有”、“根本没有”，本句需要一个与它含义相同的词。a. few,? b. a few 都与a total absence of 含义不符合，因此不对。c. no , d. not 都是不，没有的意思，与a total absence of 含义相同，not 不合乎语法，应该是not any 才正确，所以选c.5. a只有选a. ought to be 才符合语法，并与前一句含义相符合。 其他都不符合语法，所以选a.6. b本句需要一个合适的介词。 a. as 可以作介词，意思为“作为，如同”； b. like 可以做介词，意思为“像，如”； c. similar 是形容词，意思为“相像的，类似的”； d. resemble(像，类似)是动词； c.d.都不是介词，不符合题目意思； a.和b.都是介词，但b.比a更符合题目意思，只有选b. like这个句子意思才更通顺，所以b.是最佳答案。7. c只有c. as long as 才能同句中的twelve feet 搭配，as long as twelve feet(长达12尺)。 a. so much as 不能说明长度， b. longer不合乎语法，因为它不能放在twelve feet前， d. bigger也不合乎语法，也不合乎题目意思。8. b只有选b. are hit by (遭到袭击)这个句子意思才讲得通。a. come over (从远处来，过来，胜过)；b. bump off (美国俚语，残杀，杀死)；d. are terrifying (正在惊吓)这3个选择都不如b.符合题目意思，所