题目内容
选择正确答案,完成短文.
Dinosaurs once lived happily on the earth. But 65 __1__ years ago, they suddenly all died out. What happened __2__ them? Scientists think that a change in temperature may tell us why. They have come up with __3__ ideas to explain the end of the dinosaurs. The most famous one is the minor planet
(小行星)idea. Let's go back to that day to see what happened. Everything was OK before a minor planet suddenly hit the earth. __4__ terrible hit! It __5__ big fires, storms, acid rain(酸雨)and even earthquakes(地震)and volcanic eruptions(火山爆发). The hit made a lot of dust. It flew up into the air and kept the sun away for months. The earth became very cold __6__ sunlight. The __7__ died first. Then the grass-eating animals died because they had __8__ food. Then the meat-eating animals couldn't find food, __9__. They began to eat each other, but after a while they died out, __10__.
(1) A .million |
B .millions |
C .millions of |
(2) A .of |
B .for |
C .to |
(3) A .lots of |
B .a lot of |
C .A and B |
(4) A .How |
B .How a |
C .What a |
(5) A .take |
B .bring |
C .brought |
(6) A .with |
B .no |
C .without |
(7) A .animals |
B .plants |
C .flowers |
(8) A .not |
B .any |
C .no |
(9) A .too |
B .either |
C .also |
(10) A .too |
B .either |
C .also |
答案:A;C;C;C;C;C;B;C;B;A
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