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问题 单项选择题 A1/A2型题

关于霍乱潜伏期下列哪项是正确的（）。

A.潜伏期最短为1～2小时

B.潜伏期最短为2～3小时

C.潜伏期最长5天

D.潜伏期最长7天

E.潜伏期多数为3～4天

答案

参考答案：D

解析：霍乱的潜伏期最短为3～6小时，最长7天，多数为1～3天。

选择题

.

__________ such a short time left before the deadline, it doesn’t seem likely that John will finish the job.

A．For

B．Because

C．As

D．With
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单项选择题

A group of frogs were traveling through the forests, but unluckily two of them fell into a hole. The other frogs tried to help them. When they saw how (1) the hole was, they cried to the two frogs that they could not be saved. The two frogs didn’t (2) and tried their best to jump up out of the hole. The other frogs (3) saying that they were sure to die. (4) , one of the two frogs, who heard what the other frogs were saying, (5) Then he fell down and died.
The other frog, however, (6) to jump as hard as he could, and at last made it out. When he (7) , the other frogs asked, "Didn’t you hear us" The frog, who had a poor (8) , explained, "I thought you were encouraging me all the time. "
The story teaches us a (9) : There is power (力量) of life and death in the tongue. An (10) word to those who are down can help them out while a discouraging word can kill them.

Ⅰ. 完形填空

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阅读下列短文，从每小题所给的A、B、C、D四个选项中选出一个最佳选项。

A．interesting

B．exciting

C．excellent

D．encouraging
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