题目内容
20．Shirley Temple，an American actress，put herefforts （努力） into acting at a very young age．分析 秀兰•邓波儿，一个美国的女演员，在很小的时候就为演出付出努力．
解答 答案：effort（s）
秀兰•邓波儿，一个美国的女演员，在很小的时候就为演出付出努力．根据提示"努力"用在动词put的后面，故这里的"努力"为名词，与put一起构成动宾结构． 这里的"努力"可以表示"一般性的努力"，也可以为"强调一次一次具体的努力（尝试）"，所以这里用effort的单复数都可以．
点评 effort表示一般性的努力时不可数，强调一次次具体的努力时可数．
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阅读短文完成表格，每空一词．
"There has never been an airplane of that kind that could fly-never an airplane so big，so light，using so little energy，"said Bertrand Piccard，a leader of the project．
Engineers plan to test a night light soon．They plan to travel around the world in that plane in 2012．"We want to fly it day and night without fuel，"Piccard said．
Piccard and pilot Andre Borschberg will take the plane around the world．They will make a few stops to change places and rest after a long time in the air-and to show off their aircraft．
The plane flies at 70kilometers per hour on average．That is faster than a bike．The pilots will keep the plane in the air for up to five days at a time．
阅读短文完成表格，每空一词．
| Plane uses sun's power to fly | |
| （61）where | The plane took off from an airport in Switzerland． |
| how | The airplane is big，light and using little （62）energy． |
| when | It will travel around the world in （63）2012． |
| how fast | It can fly at （64）70，000 meters per hour． |
| how long | The plane can fly for （65）five days at a time． |