24． The reason why most plants can’t grow on the sandy beach is that
A． there isn't enough sunlight
B． there is too much water
C． it is too crowded there
D． it has little food for plants
第1题：
A、Sorry, he's out.
B、He doesn't want to see you.
C、Why don't you come earlier?
D、No, he can't.
第2题：
Why can't the man go traveling？
A.He can't afford it. B.He doesn't like to fly. C.He has to work.
第3题：
Which of the following is NOT mentioned(提到)in this passage?
A. The problems that light pollution has caused.
B. The reason why humans use too much light.
C. The ways that light pollution can be reduced.
D. The reason why fewer stars can be seen than before.
第4题：
25． Why do we call the sun"a life-giving star"?
A． Because it gives us warmth．
B． Because there are some living things on it．
C． Because plants and animals can't live without it．
D． Because people have to live in the dark without it．
第5题：
30． Why can fish swim in the water? Jack's answer is ________ ．
A．fish can't walk on land
B． fish can- t swim on land
C． fish can-t walk in the water
D．fish has no legs or hands
第6题：
I’m afraid Mr. White isn’t available at the moment. Can I ______?
第7题：
It just isn’t fair I was working as a waiter last month; my friends were lying on the beach. .
A whenever B. though C. for D. while
第8题：
A、Me, too.
B、You work too hard.
C、Why don’t you talk to your doctor?
D、Why bother?
第9题：
It just isn’t fair____________I was working as a waiter last month；my friends were lying on the beach．
A．whenever
B．though
C．for
D．while
第10题：
It just isn’t fair I was working as a waiter last month, my friends were lying on the beach.. A whenever B though C for D while