21世纪大学英语综合教程（第二册）课后练习答案Unit 1
2010-03-13 13:18阅读：
P18 vocabulary
Exercise 5
1. passengers 2. immediately
3. similar
4. wonder
5. continent
6. traffic 7.
misunderstandings
8. embarrassed 9. flights
10. common
11. serious
12. searched
exercise 6
1. got on 2. head for
3. tapped 4. pull over
5. resulted in
6. feel like 7. By the time
8. turn out all right
9. in the end
10. instead of
P20 structure
Exercise 7
1. By
t
he time I got home, I was too tired to do anything active.
2. The
two girls look too similar for people outside their family to tell
them apart from each other.
3. What
in the world does mm stand for? The abbreviations that people use
on the BBS are too confusing for me to understand.
4.
Because of TV, most people have become too lazy to
make the effort to go to the cinema.
5. Ann
made a serious mistake yesterday because the test gave her too
little time to decide on the correct choice.
Exercise 8
1. Until
I have really learnt the basics of the language.
2. Until
the end of the book.
3. Until
they have finished their speeches.
4. Until
my teacher explained them in class with several examples.
5. Until
I saw Sam Ward leave the building.
6. Until
he got on a city bus.
P21 Translation
Exercise 9
参考答案：
1. Because of the heavy snow, the
passengers had to wait at the airport until midnight when the snow
stopped.
2. Twenty minutes after the train
started, the two boys found that they had got on a train heading
for Huangzhou instead of their hometown, Suzhou.
3. Similar-sounding English words
often result in misunderstandings among English-speaking
people.
4. The driver heard an unusual sound
from the car engine, so he pulled over immediately to check, but it
turned out all right in the end.
5. Mr. Lee felt very embarrassed when
he realized that he had made a very common mistake among speakers
of English as a second language.
6. Mary felt like learning Japanese
and hoped she could learn it quickly, but soon found it was too
difficult for her to learn in a short period of time.
Exercise 10
1. Giving us heat and light
2. Ranging in age from 4 to 16
3. Being invited to speak here
4. Your encouraging words
5. Sitting between Mary and Tom
6. Leaving today’s work for
tomorrow
7. Playing in the playground
8. Taking a break
9. Leaving me alone
10. Taking mechanical things apart
Exercise 14:
1. mysteries 2. mysterious
3. meanings
4. stared
5. estimate
6. imagined 7. figured
8.
board
9. pronounce 10.weighed
11. presented
12. object
Exercise 15
1. Take a look 2. get right
3. objected to
4.at least
5. makes no sense 6. beside himself
7. dawn on
8. think of
