新概念英语第二册21和22课作业答案

新概念英语第二册21和22课作业答案
新概念英语第二册21和22课作业答案

新概念英语第二册21和22课作业答案
Lesson 21
Mad or not?
是不是疯了?

课文详注 Further notes on the text
1．I live near an airport and passing planes can be heard night and day. 我住在一个机场附近,过往飞机日夜不绝于耳.
（1）passing 是现在分词,作形容词用,表示“经过的”、“过往的”：He stopped a passing car.
他挡住了一辆过往汽车.
He forgot the man with passing time.
随着时间的消逝,他忘掉了那个人.
（2）night and day是固定短语,意为“日日夜夜”、“夜以继日”：He thought of the matter night and day.
他日夜在想这个问题.
He worked night and day.
他夜以继日地工作.
2．The airport was built years ago, but for some reason it could not be used then. 机场是许多年前建的,但由于某种原因当时未能启用.
（1）years 前面不加确定的数词时,一般表示“许多年”,weeks等的用法与它相似：
He left the city years ago.
他多年前就离开了这座城市.
I have not seen him for weeks.
我已经有好几个星期没见他了.
（2）some 在这里不表示“一些”,而表示“某个”、“某种”等：
I'll tell you someday.
有一天我会告诉你的.
We'll talk about it some other time.
我们改日再谈这件事.
3．…it came into use. ……机场开始使用了.
come into use 为固定短语,表示“开始被使用”：
When did the train come into use?
这火车什么时候开始使用的?
The road came into use last month.
这条路上个月通车了.
4．Over a hundred people must have been driven away from their homes by the noise. 有一百多人肯定是被噪音逼得已经弃家远去.
情态动词 must +be表示根据事实所作的推论,这在第1册第127课已经讲过.在这句话中,must+完成时态表示对过去某事的推测：
This pen is John's. He must have been here.
这枝钢笔是约翰的.他一定来过这里.
5．I am one of the few people left. 我是少数留下来的人中的一个.
（1）one of表示特指的一群人/一些东西中的一个,后面的名词用复数：
One of the girls standing over there is Tim's sister.
在那些站在那儿的女孩当中有一个是蒂姆的姐姐/妹妹.
You can take one of these bags.
你可以从这些提包中拿走一个.
（2）left相当于who are left(by the others).即其他人走了以后而留下了他们.
语法 Grammar in use
被动语态（2）
在第10课的语法中,我们已经讲了被动语态的基本形式以及它在用了一般现在时、现在完成时、现在进行时和一般过去时的句子中的使用情况.被动语态还可以和大部分情态动词连用（包括具有部分情态功能的will和 would）.
He may have been told the news.
他或许已被告知这消息了.
词汇学习 Word study
1．drive
（1）vt.,vi. 驾驶,驾车：
You must have been driving at seventy miles an hour.
你刚才一定是以每小时70英里的速度开车.
Mary drives(her car) very slowly.
玛丽开车开得很慢.
（2）vt. 赶,驱赶,围赶（猎物、敌人等）：
With the help of two dogs, he drove the sheep down the mountain.
在两只牧羊犬的帮助下,他把羊从山上赶了下来.
（3）vt. 逼迫,迫使：
Aeroplanes are slowly driving me mad.
飞机正在慢慢地把我逼疯.
The death of all her children has driven her mad.
她所有的孩子的去世把她逼疯了.
2．home与house
home 一般译为“家”、“家庭”,着重指所居住的人,常有爱、温暖、舒适、安全等隐含意义.house通常译为“房子”、“房屋”、“住宅”,指的是建筑物.试体会它们的区别：
They live in a large house.
他们住在一所大房子里.（不可用home）
My father is at home now.
我父亲现在在家.（不可用 house/at house）
Tom must be somewhere in the house.
汤姆肯定在这屋子里的某个地方.（不可用home）
I have a sweet home.
我有一个甜蜜的家庭.（不可用house）
练习答案 Key to written exercises
1．关键句型练习答案
A …passing planes can be heard(1.2); The airport was built (1.2); it could not be used then(1. 3); a hundred people must have been driven away(11.4-5); this house will be knocked down by a passing plane(11.6-7); I have been offered a large sum of money(1.7)
C 1 A message will be sent immediately.
2 All these goods must be sold.
3 I told you the parcel would be received in time.
4 The letter has to be delivered by hand.
5 Your letter must have been lost In the post.
2．难点练习答案
A (sample answers)
The dog drove the sheep out of the field.
The police drove the crowds back.
I drove my car into the garage.
B1 home 2 houses 3 house 4 home
3．多项选择题答案
1c 2d 3c 4d 5a 6c
7b 8b 9a 10d 11c 12c

Lesson 22
A glass envelope
玻璃信封

课文详注 Further notes on the text
1．A glass envelope, （标题）玻璃信封.
因为第一封信是装在瓶子里的,瓶子便成了那张写有地址的纸条的玻璃信封.
2．My daughter, Jane, never dreamed of receiving a letter from a girl of her own age in Holland. 我的女儿简从未想过会收到荷兰一位同龄姑娘的来信.
文中 dreamed of后面的部分都是宾语.动名词 receiving带有自己的宾语 a letter.（ cf. 第 20课语法）receive… from…表示“从……收到……”.
3．Last year, we were travelling across the Channel and Jane put a piece of paper with her name and address on it into a bottle. 去年,当我们横渡英吉利海峡时,简把写有她姓名和住址的一张纸条装进了一只瓶子.
（1）在写到过去的事情时,一般过去时和过去进行时可以连用.过去进行时往往用来表示背景,一般过去时表示发生的动作.
在这句话中,travelling across the Channel是个持续时间较长的背景动作.
（2）the Channel=the English Channel（channel如果大写,并且除了the以外没有其他定语时,则指英吉利海峡）.
（3）with在这里表示“有”、“带有”、“具有”等,指纸条上写的内容.
4．She never thought of it again…此后她就再没去想那只瓶子……
think of指“考虑”、“想”、“想起”等：
Do you ever think of the girls you met at a party?
你会想起你在一个晚会上遇到的姑娘们吗?
5．Both girls write to each other regularly now. 现在这两位姑娘定期通信了.
both的用法在第14课词汇学习中已经讲过.它用在名词前面时,of可有可无.在both girls中,both为形容词；在both of the…结构中,both为代词.each other指互相,一般作宾语.
6．Letters will cost a little more, but they will certainly travel faster. 这样会稍微多花点钱,但肯定是快得多了.
（1）more和faster都是副词的比较级.这里隐含的比较成分是邮局寄信与海上漂瓶.
（2）动词cost意为“（使）花费”、“价钱为……”,其主语通常为某物或某件事情：
It costs a lot to buy a house.
买一所房子要花许多钱.
The dress cost me twenty pounds.
这件连衣裙花了我20英镑.
语法 Grammar in use
后面可跟of,from,in和on的动词
许多动词后面加上介词后仍具有其通常意义,但它们与哪些介词连用却往往是固定的,如borrow from,believe in（相信,信仰）,receive from等.还有些动词可与不同的介词连用,而动词的意义改变并不大,如dream of/about,help in/with,expect of/from等.在学习中,要牢记哪些介词与它们连用.如下动词和介词通常可以分开使用,可以有自己的宾语,并且大部分都可用于被动结构.
（1）与of连用的动词
Someone must warn him of the difficulties. 必须有人提醒他有这些困难.
He has already been warned of them.
他已经被警告过了.（被动结构）
Don't expect too much of your child.
不要对你的孩子期望太高.
He must have spoken of the matter to John.
他肯定对约翰谈起过这件事.
I have never heard of the actress.
我从来没听说过这位女演员.
（2）与from连用的动词
He borrowed three books from Mary.
他从玛丽那里借了3本书.
He always asks for help from his parents. 他总是向父母求助.
（3）与in连用的动词
Do you believe in everything he says?
你相信他的每一句话吗?
She delights in working hard.
她喜欢努力工作.
He failed in his French test.
他法语考试没通过.
Jack helped me in driving the sheep home.
杰克帮我把羊赶回家.
Mrs. Turner is experienced in teaching. 特纳夫人很有教学经验.
（4）与on连用的动词
He finally decided on going home. 他最后决定回家.
You can't live on fruit only.
你不能只吃水果.
Last Sunday, we called on Mr. Dupont.
上星期天,我们拜访了杜邦先生.
词汇学习 Word study
1．dream
（1）vt. 做梦,梦见：
I dreamt/dreamed I was in Scotland. 我梦见我在苏格兰.
（2）vt. 做梦,梦见（与of,about连用）：
I often dream of/about you.
我经常梦见你.
I dreamt of a large empty room.
我梦见一个很大的空房间.
（3）n.梦；梦想,幻想.
I dreamt/had an interesting dream last night.
昨晚我做了一个有趣的梦.
Have you heard of the American Dream?
你听说过美国之梦吗?
2．throw vt.
（1）投,扔,抛：
Don't throw stones at the dog.
别向那狗扔石头.
Throw the ball to Tom.
把球扔给汤姆.
Shall I throw this old newspaper away?
我把这旧报纸扔掉好吗?
（2）把……对准目标；向……作出举动：
George was very happy today. Julie had thrown a smile at him in the morning.
乔治今天很开心.早上朱莉朝他微笑了一下.
The boss threw him an angry look.
老板恼怒地看了他一眼.
练习答案 Key to written exercises
1．关键句型练习答案
1 from 2 on 3 in 4 on 5 from
6 from 7 of 8 on 9 from 10 in
11 on…in 12 of 13 in 14 on 15 of
16 of 17 from 18 of…on 19 on 20 of…of
21 of 22 of/from 23 of 24 from 25 in
2 6on 27 on 28 from 29 on 30 in
31 from 32 on 33 on 34 on 35 in
36 from 37 on 38 on 39 in 40 of
41 on 42 on 43 of 44 in 45 in
46 in 47 from 48 of 49 of 50 of
51 on 52 of 53 from 54 in
2．多项选择题答案
1d 2b 3d 4d 5b 6d
7a 8 c 9d 10 a 11b 12 b