练习题

1 People realize that, although animals may not have
the same intelligence like human being, they are smart 1.__________
enough to learn certain things.

2 Marconi, the Italian inventor who gave us radio,
probably didn’t realize what effect his great invention
would have for the world in the yours to come. 2.__________

3 Before you make travel in another country, find
out much as possible about its manners and customs. 3.__________
You will probably be surprised how different they
can be with your own. 4.__________

4 We are told that the world’s population is increasing
with such a speed that the need for fresh water will be 5.__________
doubled by the end of the century.

5 Immediately before him was a very flat piece
of bread that looked to him, very much as napkin. 

6 It is encouraging to note that in recent years, 6.__________
cigarette smokers have been in the decline, especially 
among the older people.

7 In 1980 black students comprised of about 10 7.__________
percent of all college enrollments, up from 5 percent
in 1965.

8 The law I am referring requires that everyone who 8.__________
own a car have accident insurance.

9 But perhaps we should look at both sides of the 9.__________
coin before arriving hasty conclusions. 

10 Big cities of the world are well-known by their 10.__________
noises.

答案：
1.like -with
2. for-in
3.out前面加as
4.with-in
5.to-at
6.encouraging-encouraged
7.of去掉
8.referring后加to
9.at-into
10.by-as