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 
 
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