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SectionC知识点
1.A few students are running around the playground.
few 和 little 的区别：few--短对应俩字儿--“可数”；little 长对应仨字儿--“不可数” 。
a few 与 few 以及 a little 与 little 的区别：有 a 就有,表肯定，没 a 就没，表否定。例如：
It is so cold outside that night that ________ people went outside.
so cold 那天晚上如此地别冷--暗示出去的人很少--少到几乎没有--就是所谓的否定含义，所以我们就选不含 a 的短语，又因为people是可数名词，于是就用 few！
2. Look!Many students are sitting there and watching.
Look！Listen！其实是最简单的祈使句，让你看，让你听的时候，这个事正在发生，所以后面用正在进行时。
3. What about the girls over there? over there--那边，稍远点的那些女孩在干啥？
4. Look at your classmates.They are not having lessons.
1）look at ... 同样是个祈使句，提示你看，后面是个正在做的动作；
2）现在进行时的否定句，not 放在be 后面
5. What are Jane and Maria doing?这句问俩人，be动词用are
SectionD知识点
1. Wed like to know about the school life of American students.
1）would like to 想，愿意，想做而没做，后跟不定式
2）know about 了解, 知道，有同学说 know 不就是知道了解吗？和 know 相比，know about 知道的程度深度都小的多。
2. Well, many students usually take a yellow school bus or walk to school.
这句话无法简单替换 by bus，因为那样漏掉了定语 yellow 和 school ，而 by a yellow school bus 不被母语人使用，如果非要同义句替换，可以说成：many students usually go to school in a yellow school bus
3. What time is school over, then?
这句话中的 over 意为“结束”，但是他不是个动词，而是个副词，和 be 结合表示“结束”，school is over\ class is over \ game is over \ meeting is over
4. What do they do in their free time?
in ones free time : 在谁谁谁空闲的时候，free 可以替换为 spare ，free 和 spare 都有“空闲的”意思，也都可以当动词，表示“释放......”--其实就是“让......空闲起来”
5. Nice talking to you.
相当于 Talking to you is nice. 类似的还有 Nice meeting you！Glad meeting you! 和跟不定式的说法意思一样，不过这里的情况是 谈话已经结束，用这种 -ing 的更合适。
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