上海市中等职业技术学校寒假作业中职一年级
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（
C
）2. When does the porcupine start and end its aestivation?
A. It starts in January and ends in March.
B. It starts in March and ends in April.
C. It starts in August and ends in October.
D. It starts in November and ends in February the next year.
答案：C
解析：根据第三段“During this time the porcupine can’t find any to live on, so it lies down to aestivate for months without eating. It comes out again when the cool autumn days arrive.”可知，豪猪在炎热的夏天夏眠，秋天凉爽时出来，选项中C（8月开始，10月结束）符合夏季时间段，选C。
（
D
）3. Which of the following is NOT true?
A. Hibernating animals are active in summer.
B. Porcupines in Southeast Africa live mainly on earthworms.
C. One kind of tree frogs in South Africa sleeps inside trees in summer.
D. The body temperature of an aestivation animal in summer is as low as that in winter.
答案：D
解析：根据最后一段“The most interesting thing about the aestivating animal is that while it sleeps, its body temperature drops just as the hibernating animal’s body temperature drops in winter.”可知，夏眠动物体温下降，和冬眠动物冬天体温下降情况类似，但不是“和冬天一样低”，D错误，选D。
（
B
）4. What does the underlined word “hibernate” mean in Chinese?
A. 觅食
B. 冬眠
C. 蜗居
D. 隐藏
答案：B
解析：根据第一段“As winter draws near, many of the cold-blooded animals hibernate till spring comes.”可知，冬天临近到春天，冷血动物的状态是“冬眠”，选B。
