1. Did you come by air 2.Are you coming by air?请问 第一句用did 因为come是行为动词 那为什么第二句也有come 却用are呢? 还有 第二句的句意是1.你是乘飞机来的吗?还是2.你会乘飞机来吗?

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1. Did you come by air 2.Are you coming by air?请问 第一句用did 因为come是行为动词 那为什么第二句也有come 却用are呢? 还有 第二句的句意是1.你是乘飞机来的吗?还是2.你会乘飞机来吗?
1. Did you come by air 2.Are you coming by air?
请问 第一句用did 因为come是行为动词 那为什么第二句也有come 却用are呢? 还有 第二句的句意是1.你是乘飞机来的吗?还是2.你会乘飞机来吗?

1. Did you come by air 2.Are you coming by air?请问 第一句用did 因为come是行为动词 那为什么第二句也有come 却用are呢? 还有 第二句的句意是1.你是乘飞机来的吗?还是2.你会乘飞机来吗?
意思理解对了,第一句是过去时,第二句是将来时,只不过形式上是现在进行时,come,go,fly等单词都是这样的规律,在现在进行时形式中本身就要求是be动词加上行为动词,而在一般现在时,一般过去时中助动词主要是帮助行为动词将句型变成不同句式,如否定句,疑问句等

第二句问的是你现在是乘飞机来吗,问的是现在

1. Did you come by air ?你是乘飞机来的吗?
2.Are you coming by air?你会乘飞机来吗?
第一句是一般过去时态;第二句是一般将来时态请问是不是come这个行为动词并不影响整句话是do提问还是are提问 那决定用do还是用are是看什么条件啊?句子的谓语部分只有行为动词时,就要借助于助动词do/does/did来做问句或否定句。 He ...

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1. Did you come by air ?你是乘飞机来的吗?
2.Are you coming by air?你会乘飞机来吗?
第一句是一般过去时态;第二句是一般将来时态

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