新概念英语第二册：第20课课文详解及语法解析.doc

新概念英语第二册第二十课课后习题答案详解Lesson 201. b根据课文第4行 I never catch anything---not even old boots, 只有 b. nevercatches anything 与课文实际内容相同，而其他3个选择都与课文内容不符。

根据课文最后一句I am only interested in sitting in a boat and doing nothingat all! 只有c. doing nothing 是正确答案，而其他3个选择都不符合课文内容。

本句是对主语提问的，回答是. who (谁)是对主语提问的；c. whom(谁)是对宾语提问的；d. whose(谁的)确是对定语提问的；只有b. which 是对做主语的事物提问的，所以选b.本句是带never的否定句，只有b. anything 可以用在否定句中。

而a. nothing若用在否定句中，就会使原句变成肯定意义的句子，不符合题目意思；c. something 只能用于肯定句中；d. everything 也不能用在否定句中。

前面句子 I am even less lucky 中的 less(不及)是表示否定意义的比较级,只有c. not so是表示否定意义的,而其他3个选择都没有否定的意思.只有b. an empty bag 最符合语法。

而其他3个选择都有语法错误。

a. a empty bag 中empty是以元音开头的，前面不能用a 而应该用an; c. empty bag 中 bag 是可数名词，需要用an 来修饰；d. oneempty bag 不符合习惯用法，单数可数名词前通常用不定冠词a 或an 修饰，除非表示强调才用one 修饰。

因此应该选b.只有c. all 才能使这个句子同前一句I am only interested in doingnothing.的含义相符合，all等于the things that ，可以代替doing nothing. 而其他3个选择中a. only 和d. the only 不符合语法，b. the one 不符合题目意思，不能完全表达清楚。

Lesson20 One man in a boat 课⽂内容： Fishing is my favourite sport. I often fish for hours without catching anything. But this does not worry me. Some fishermen are unlucky. Instead of catching fish, they catch old boots and rubbish. I am even less lucky. I never catch anything-not even old boots. After having spent whole mornings on the river, I always go home with an empty bag. ‘You must give up fishing!' my friends say.‘It's a waste of time.' But they don't realize one important thing. I'm not really interested in fishing. I am only interested in sitting in a boat and doing nothing at all ! 本⽂语法：动名词 语法归纳：动名词由“V + ing”构成，是兼有动词和名词⼀部分性质的⾮谓语动词，可以通俗地理解为表达动词的含义⽽具有名词的词性。

动名词在句⼦中可充当主语、宾语、表语、定语等： 1)动名词作主语： Saving is having.节约就是财富。

Finding a good job is very difficult now.现在找⼀个好⼯作很难。

Watching television is a waste of time.看电视就是在浪费时间。

●LESSON 201.生词与短语1）catch表示捉到的时候,还可以用：grab，seize，hold，take hold of等等Catch fish 钓鱼，捕鱼Catch thief 抓住小偷Catch the bus 赶公共汽车→miss the bus 错过公共汽车catch one’s attention Catch one’s eyesdraw one’s attention Draw one’s eyes }吸引某人注意力attract one’s attention Attract one’s eyescatch fire 燃烧，着火（强调动作）be on fire 燃烧着的，着火的（强调状态）Catch a cold 患感冒（强调动作）Have a cold 患感冒（强调状态）Catch sb. doing sth 抓住某人正在做某事Eg. The little boy was caught stealing apples from the garden.这个小男孩正在偷苹果被．抓住了。

Eg. The early bird catches the worms. 早起的鸟儿能捕到虫子。

（谚语的实际含义：捷足先登）【同义词区分】grab 抓起，抢夺，热切或拼命地抓snatch 抢夺，突然而迅速地抓起arrest （依法）逮捕capture 俘虏，捕获trap 设陷阱捕捉grasp 握紧，抓住seize 握紧，抓住catch it 被责骂，受处罚【口】（常与will等连用）Eg. If I come home late , I’ll catch it from my mother. 如果我回家晚了，妈妈会骂我的。

catch up with 赶上（某人）eg. Go ahead , please. I’ll soon catch up with you.Catch on (意见，时尚)受欢迎的Catch phrase 标语，引人注目的句子2）fishFish →fishman (pl. fishmen)Fish 鱼（c.）n..⑴fish 鱼（pl.）单复数头同形⑵fish 不同种类的鱼A big fish in a small pond. 一个小池塘里的大鱼（中文寓意：山中无老虎，猴子称霸王）Eg. When the cat is away, the mice will play.当猫不在的时候，老鼠就开始玩儿了。

新概念英语第二册：第20课课文详解及语法解析课文详注 Further notes on the text1.I often fish for hours without catching anything.我经常一钓数小时却一无所获。

without 通常表示“缺乏”、“没有”：I can't repair the car without your help.没有你的协助我无法修理这车。

当它位于动名词前时，它表示“不曾”、“不”：They tried to leave the restaurant without paying.他们企图不付账就离开餐馆。

John left the room without telling anyone.约翰离开房间时不曾告诉任何人。

2.Instead of catching fish, they catch old boots and rubbish.他们往往鱼钓不到，却钓上来些旧靴子和垃圾。

instead有“作为替代”、“反而”等含义，一般以短语形式instead of出现：Jack took part in the race instead of Tony.杰克代替托尼参加了比赛。

Instead of sugar, he bought some salt.他没有买糖，而是买了些盐。

副词instead单独使用时一般出现在句尾：If you don't want a holiday in England, why don't you go to Australiainstead?如果你不想在英国度假，那你为什么不去澳大利亚呢?3.I am even less lucky.我的运气甚至还不及他们。

less是little的比较级，意为“不及”、“不如”、“更少”：Tom has got little chocolate, and Jack has got even less.汤姆只有一点儿巧克力，杰克则更少。

Lesson 20 One man in a boat【New words and expressions】生词和短语★catch v. 抓到 catch fish, catch thief catch cold：染上感冒 catch a bus：赶车catch one's breath：摒住呼吸 catch sight of(see)：看见catch fire：着火 catch one's eyes：吸引某人注意力★fisherman n. 钓鱼人，渔民★boot n.靴子 a pair of boots★waste n. v. 浪费 You are wasting time.a waste of: It is a waste of time.★realize v. 意识到 I realized that I was wrong.实现，realize one's dream【课文讲解】fish一般情况下作为不可数名词用There are a lot of fishes（表示种类）in the sea.fish(v.)：钓鱼，捕鱼主语通常由名词和代词充当，以及动词＋ingfor+时间……表示一段时间 for hours=for some hourswithout (prep.) 介词后面一定要加宾语动词＋ing：1.做主语；2.做宾语anything用在否定句中without作为状语而出现，表示结果状语, without 后面的动作是主语来做.He went out without saying any words.Without asking for money, the boy went to school.(v.)worry sb. The house worried me. My daughter worried me.(adj.)be worried about 主语为宾语而感到担心I was never worried about this.instead of 后面的词一定是没有做的，可以放在主句后面without强调没有做某件事，instead of强调这件事没做成而做成了另外一件事我原准备做……但是后来做了……I go to school instead of staying at home. I bought books instead of buying dresses. less+原级 (不如) : A is less ... than Bspend+时间+在某地：在某地度过……时间after(conj.)+从句，从句主语必须是主句的主语才能换成下面一种形式after(prep.)+名词／动词的ing形式After I go to school, I learned a lot of knowledge.After going to school, I learned a lot of knowledge.with: 带着 without；没带give up doing/stop doing：放弃做某事在船上in the boatnot at all在否定句中起强调作用【Key structures】动词＋ing(非谓语动词)可以做主语和宾语b.be keen on, be fond of, be interested in, enjoy+动词ingbe afraid of, be up to ,be capable of, without, instead ofc. I apologize.apologize for (not) doing sth., thank you for..., congratulate sb. on doing sth. Exercises C1.without without prep.+ doingHe went out of the restaurant without paying the bill.2.instead ofShe bought a pair of boots instead of getting a pair of shoes.＝She bought a pair of boots instead of a pair of shoes.3.of : She was afraid of spending the night alone.4.afterafter＋从句；after prep.+doing After hearing the news, she fainted.5.beforeThink carefully before answering my question. 在回答我的问题之前，请仔细考虑。

新概念英语第二册第二十课课后习题答案详解Lesson 201. b根据课文第4行 I never catch anything---not even old boots, 只有 b. nevercatches anything 与课文实际内容相同，而其他3个选择都与课文内容不符。

2.c根据课文最后一句I am only interested in sitting in a boat and doing nothingat all! 只有c. doing nothing 是正确答案，而其他3个选择都不符合课文内容。

3.b 本句是对主语提问的，回答是Fishing.a. who (谁)是对主语提问的；c. whom(谁)是对宾语提问的；d. whose(谁的)确是对定语提问的；只有b. which 是对做主语的事物提问的，所以选b.4.b本句是带never的否定句，只有b. anything 可以用在否定句中。

而a. nothing若用在否定句中，就会使原句变成肯定意义的句子，不符合题目意思；c. something 只能用于肯定句中；d. everything也不能用在否定句中。

5.c前面句子 I am even less lucky 中的 less(不及)是表示否定意义的比较级,只有c. not so是表示否定意义的,而其他3个选择都没有否定的意思.6.b只有b. an empty bag 最符合语法。

而其他3个选择都有语法错误。

a. a empty bag 中empty是以元音开头的，前面不能用a 而应该用an; c. empty bag 中 bag 是可数名词，需要用an 来修饰； d. oneempty bag 不符合习惯用法，单数可数名词前通常用不定冠词a 或an 修饰，除非表示强调才用one 修饰。

因此应该选b.7.c只有c. all 才能使这个句子同前一句I am only interested in doingnothing.的含义相符合，all等于the things that ，可以代替doing nothing. 而其他3个选择中a. only 和d. the only 不符合语法，b. the one 不符合题目意思，不能完全表达清楚。

一、词汇catch v. 抓到fisherman n. 钓鱼人，渔民boot n. 靴子waste n. 浪费realize v. 意识到★catch v. 抓到①vt. 捉住，逮住，捕获The police have caught the thief.②vt. 抓住，握住Can you catch the ball?③vt. 及时赶到，赶上catch up with 赶上，跟上Go ahead please.I ' ll soon catch up with you.★ boot n. 靴子a pair of boots 一双靴子★waste n. 浪费①n. 浪费a waste of, 浪费,,It is a waste of time/money/food/water.②vt. 浪费You are wasting time.★realize v. 意识到① v. 认识，知道，明白，意识到I went into the wrong room without realizing it. 我无意中走错了房间。

I realized that I was wrong.② v. 实现（希望、目标、愿望等）realize one's dream 实现某人的梦想She has realized her hope to be an actress.③使变为事实，使发生（常用于被动语态）This plan can never be realized.二、课文讲解1、Fishing is my favourite sport.fishing 是一个动名词，由动词+ing 组成，动名词可以作主语或宾语，如eating ，reading 等等★fish①n.鱼（不可数名词），鱼的种类（可数）There are a lot of fishes（表示种类）in the sea.②V.钓鱼，捕鱼2、I often fish for hours without catching anything.for+ 时间表示一段时间for hours=for some hours 数小时without catching anything 作为状语而出现, 表示结果状语。