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哪些单词出现在句子用原形
解题思路: 要分几种情况,这些都是有规律的。
解题过程:
1、 在情态动词后用动词原形,情态动词有:can---could, may--might, must, need, have to, shall---should.
如:I can ride a bike. He must finish his homework first.
We have to get to school early tomorrow.
2、在句型转换时用了助动词,动词要用原形。
如:He goes to school by bike.
Does he go to school by bike?(一般疑问句)
How does he go to school?( 特殊疑问句)
3. 在某些动词后也接动词的原形。
如:帮某人做某事(help somebody do something),
He often helps his mom do housework.
(see(看到)/ watch(看)/find(发现) somebody do something),
I saw him play on the ground.(我看到过他在操场上打球)
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最终答案:略