题目内容

Directions: For this part, you are required to write a composition of about 100~120 words based on the following situation. Holiday Economy Outline: 1．对于由长假引发的“假日经济”，人们一直存在争议； 2．很多人认为“假日经济”的负面作用更大 3．“我”的看法。

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一位教师上生物课，讲昆虫的趋食性时，举了这样一个例子：“在楚汉相争中，项羽被刘邦击败，星夜逃跑，当天亮到达乌江岸边时，突然发现，江边有几个黑色大字——‘项羽必亡’。他走近细看，黑字全是蚂蚁拼成的。顿时军中一片混乱，他们认为这是天公要灭项羽。项羽无奈拔剑自刎了。”这时，同学们个个聚精会神，纷纷猜测其中的道理。最后在老师的帮助下揭开了这个谜。原来是刘邦的军师张良利用昆虫趋食性的道理，黑夜派人用食油和米糖在江边写下了那几个字，招来无数蚂蚁，造成项羽军心的恐慌。试分析以上这个材料教师主要运用了哪种教学原则，并结合材料分析运用这一原则应体现的基本要求。

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The passage implies that modern airlines are （）.

A. reliable
B. dangerous
C. complicated
D. efficient

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What can be inferred from the passage（）

A. Dolphins have highly evolved.
B. Mammals don"t eat plants at all.
C. All fishes developed from land animals.
Dolphins were once closely related to humans.

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A test flight is dangerous because the test pilot has to （）.

A. fly his plane at a very high altitude
B. secure a safe landing in a plane crash
C. find out how to handle a plane when its engines stop working
D. fix the damaged engines during the flight

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