【热身训练】
Ⅰ. 选择合适的单词填空，使句子完整、通顺。
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already, yet, ever, never, since, for
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1. — Have you __________ been to the USA?
— No, __________.
2. Have you eaten anything __________10.00 am?
3. My cousin hasn’t visited the Great Wall __________.
4. Lin Tao and I have been good friends __________ about five years.
5. Jack has __________ finished his homework. He may watch TV now.
Ⅱ. 按要求完成下列各题。
6. 我刚刚吃过晚饭，一点儿也不饿。(汉译英) __________________________
7. 他最近交了一个新朋友。(汉译英) _________________________
8. They have already returned from their school. (改为否定句)
They __________ returned from their school __________.
【融会贯通】
现在完成时的时间状语很多，让我们一起来总结一下吧。
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用法
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例子
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already
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表示“已经”，常用于肯定句中。
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练习5
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yet
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常用于疑问句和否定句中，表示“仍然、还”。
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练习3和8
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ever
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意为“曾经”，用于疑问句或否定句中。
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练习1
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never
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意为“从来、从不”，表示否定意义。
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练习1
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just
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意为“刚刚”，表示动作刚刚过去，多用于肯定句中。
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练习6
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recently
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意为“最近地”，可用于陈述句、否定句和疑问句。
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练习7
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for
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后加时间段
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练习4
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since
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后加时间点
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练习2
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Key：
1. ever; never 2. since 3. yet 4. for 5. already
6. I have just had supper. I’m not hungry at all.
7. He has made a new friend recently.
8. haven’t; yet
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