some practices

来源：百度知道 编辑：UC知道 时间：2024/05/09 16:59:53
1. If ever again _____ happens an accident like this, we will have only ourselves to blame．
A．it
B．so
C．there
D．that

2. A light with no more power than _____ by an ordinary electric light bulb becomes intensely strong as it is concentrated to a pinpointsized beam.
A．as is produced
B．that produced
C．which is produced
D．produced

3. The play is said to be worth seeing. You must have seen it yesterday evening, _____ you?
A．didn't
B．mustn't
C．did
D．can't

4. It is difficult for us to explain phenomena of which we have little or _____ direct knowledge.
A．not any
B．no
C．none
D．nothing

5. A certain scientist had discovered that a metal called uranium gave off a kind of radiations, which Madame Curie was later _____ radioactivity.
A．calling
B．called
C．to call
D．to be called

6. Finally they set off again

1.
A．it

2.
B．that produced

3.
A．didn't

4.
B．no

5.
C．to call

6.
A．should be

7.
C．has been working

8.
C．using

9. A．them doing so

10.
A．other than

C D A B C
A D A B B

确定的答案

1. c.

2. c.

3. A.

4. B.

5. A.

6. A.

7. C.

8. A.

9. B.

10. A

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