2. Is there such a thing as being big boned?
有没有“骨架大”这么回事？
介词短语as being big boned在句子中作定语，“being big boned”是动名词短语，作介词as的宾语。类似的句子还有：Her friends all speak of her as being sweet-tempered。 As也可以作关系代词，在限制性定语从句中常和such, the same, so连用; 在非限制性定语从句中代指主句的整个内容，例如：
Such exercises as he does are good for old people. I hold the same view as the majority does. He is a teacher, as is clear from his manner.
As was his wont(习惯), he cleared his throat before starting the lecture. Big boned 指“骨架大的”。
3. Walking and riding your bike count, and so do school sports.
步行和骑自行车都有用，学校里的体育活动也有用。
Count除“计数，计算”的意思外还有“被视为、在…之列、有…作用”等意思。例如： His opinions don’t count.
Knowledge without common sense counts for little.
so do school sports是省略句，相当于：school sports also count. 4. When you sleep, your body prepares you for the day to come. 当你睡觉的时候，你的身体为新的一天做好准备。 Prepare sb for sth: 使….做好….的准备，例如： Education prepares students for their future careers.
We must prepare her for the bad news so that it won’t come to her as too much a shock. 不定式短语to come在本句中作定语，修饰the day, 表示“即将来临的”
5. As a matter of fact, loss of sleep can make you look tired, and even cause you to put on
weight.
事实上，睡眠不足会使你看起来疲倦，甚至导致你体重增加。
As a matter of fact: in fact。Loss 是lose 的名词形式，loss of sleep 意思是“睡眠不足”，不是“失眠”。Cause sb to do sth, 使某人做某事。
6. Many teenagers are surprised to learn that when you exercise, your body produces some chemicals that make you feel relaxed and increase your ability to concentrate when you study.
许多青少年听说体育锻炼可以使身体产生帮助放松精神、促进集中注意力的化学物质时都觉得吃惊。
Be surprised to learn得知某事感到惊奇，learn在这里是“得知、了解到”的意思。surprised to learn 【同步练习】 一、单项选择
1．He is a friend of______.
A. Mike’s brother’s B. Kate’s brother C. father’s of Mike D. Mike father’s
2. Encourage is a ____________ word.
A. 9-letters B. 9-letter C. 9-letter’s D. seven-letters’ 3. The nurse is taking my ________ temperature.
A. mother’s-in-law B. mother-in-laws C. mothers-in-law D. mother-in-law’s 4. This cup is ______big as that one.
A. half as B. as half C. three-seventh D. two as 5. Mr. Wolfe seldom speaks in a loud voice, _____ he?
A. does B. doesn’t C. is D. isn’t
6. Peter said he would practice yoga, and _________.
A. so did he B. so would he C. so he did D. so he does 7. ____ we all know, China is a big developing country.
A. what B. so C. which D. as
8. The old classmates talked of the things and persons ______ they remembered.
A. who B. whom C. that D. which
9. A good ______ of students have sign up for the outing.
A. amount B. deal C. many D. lot
10. You can’t ______ to neglect such an important client. A. offer B. afford C. pay D. refuse 11. We put the food in the shade to ______ it cool. A. remain B. prevent C. stay D. keep
12. Such a _______ person can never be trusted with so important a job. A. worthless B. valueless C. priceless D. worthy
13. If you ______breakfast often, you will have no energy for the morning work.
A. leave out B. drop C. give up D. skip 14. Those _____ want to have a go please step forward. A. that B. who C. they D. for whom
15. Her charm _____ well with those eager young gentlemen. A. counts B. results C. works D. affects
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