05. 조동사

※ 네모 안에서 둘 중 어법상 올바른 것을 고르시오.

1. Sadly, our environment is much dirtier than it [was/did] in the past.

was : 앞에 있는 is를 대신받기 때문에 was가 적절

2. Even those who ignore sports cannot help [being/to be] aware of these large and pleasantly predictable events.

being : cannot help -ing: -하지 않을 수 없다

3. Researchers believe crying and laughing stem from the same part of the brain. Just as laughing produces a lot of healthy benefits, scientists are discovering that crying [does/is] too.

does : 앞에 있는 produces를 대신 받으므로 does가 적절

4. College is totally different from high school because you are on your own. I [cannot/may not] stress too much about the idea of learning independence. There is no one to walk you to class. You need [motivate/to motivate] yourself because there is no one to make you do your schoolwork, set your schedule, or get to class on time.

cannot, to motivate : cannot - too : 아무리 -해도 지나치지 않다 / need : 본동사로 쓰일 경우 to부정사를 취함 / need는 부정문, 의문문: 조동사 역할 - 동사원형이 뒤에 옴; 긍정문: 본동사 역할 - to부정사가 따라옴

5. Banking by telephone is set to become the standard for most personal clients within the next decade; the customer need never [enter/to enter] his or her local branch.

enter : need : 본동사로 쓰일 경우 to부정사를 취함 / need는 부정문, 의문문: 조동사 역할 - 동사원형이 뒤에 옴; 긍정문: 본동사 역할 - to부정사가 따라옴

6. The judge then instructed the defendant to do the same as the plaintiff [does/did].

did : 앞에 instructed를 대신 받으므로 did가 적절

7. On the way to school, I found a dollar. I think it should have fallen out of somebody's pocket.

must have fallen : should have p.p.: -를 했어만 했다 (하지 못한 일에 대한 후회) / must have p.p.: -했음에 틀림없다(과거의 일에 대한 강한 추측)

05. 조동사