9B Unit l Life on Mars
课时练****4 (Grammar)
一、根据句意及所给首字母或中文提示,完成下列句子
1.He asked_________(是否)they needed some more books or not.
2.Anything that is dropped falls towards the ground because of the force of_________(重力).
3.Some scientists do not believe that the_________(旅程)to Mars will be very comfortable.
4.About four-________(五)of the books in our 1ibrary are written in Chinese.
5.It’s c________ that every effect must have a cause.
二、用所给单词的适当形式填空
1.This problem always__________(worry)me.
2.I can imagine what the place is going to look like in a few_________(year)time.
3.Li Lei came into the classroom_________(quiet)when he was 1ate.
4.You can experience the__________(beautiful)of the old park if you go there.
5.The workers are made___________(work)all day,
三、单项填空
( )1.一May I watch TV this Thursday? There’s a live football match.
一_________.You may only watch TV at the weekends.
A.Yes,you may. B.No,you mustn’t
C.Yes,you can D.No,you needn’t
( )2.I didn’t know __________they could pass the exam or not.
A.why B.when C.that D.whether
( )3.You ________go and ask Daniel.He __________know the answer.
A.must;can. B.must may C.need;can D.can may
( )4.Can you tell me________people are going to move to Mars?
A.what B.who C.whether D.that
( )5.Do you kno