题目内容
20．The boy could play the violin when he was five years old．（同义句）The boywas able to play the violin at the age of five．
分析 --这个男孩五岁时会拉小提琴．
--这个男孩五岁时就能拉小提琴了．
解答 答案：was able考查句型转换．根据题干中的could（can的过去式）=be able to能够，主语the boy单数形式，用is的过去式was，故答案是was able．
点评 考查句型转换．此类题先掌握原句的句意及句型，根据根据已知的条件，再做同义句转换，用合适的单词符合原题意．
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14．
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| easy think hang down between two homework subject take study |
First，be sure you understand the task．Write it （57）down in your notebook if you need to，and don't be afraid to ask questions about it．It's much （58）easier to take a minute to ask the teacher than to struggle（奋斗） to remember later that night!If you want，you can also ask how long it should （59）take to finish certain homework so that you can plan your time．
（60）Second，use any extra（额外的） time you have in school to work on your homework．Many schools have study halls that are built to allow （允许） students to（61）study or get homework done．It's tempting（诱人的） to （62）hang out with friends during study time，but the more work you can get done in school，the less you'll have to do that night．
Third，if you don't finish your homework during school，（63）think about how much you have left and what else is going on that day，and then plan your time．Most high-school students have （64）between 1and 3hours of homework a night．If it's a heavy homework day and it seems like you've got homework in every（65）subject，you'll need to spend more time on homework．