第1个回答 推荐于2017-09-04
我正在学习和教授英语。
这句话用了现在进行时,也就是be动词的现在时(am、are、is)加现在分词,表示现在或现阶段正在进行的动作。
现在分词的构成:
一、动词原形加-ing。如saying、speaking、talking。
二、以不发音的-e结尾的动词,去掉e加ing,如:having、writing、coming。
三、以重读闭音节或r音节结尾的动词,末尾为单辅音字母(x除外)时,双写这个辅音字母再加-ing,如:getting、barring、spurring、occurring、beginning、 admitting,但是:fixing、mixing。
四、以c结尾的动词,先加k再加ing。如:panicking、picnicking。
五、少数现在分词做不规则变化,如:lying、tying。
如:
The kettle is boiling.
Is the sun shining?
It is blowing hard.
It is snowing outside.
John is losing his hair.
I am learning English at college.
He is taking physics this semester.
I am taking the medicine three times a day.
Tourist villages are sprouting along the desert shore.
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