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♥♥♥初二英语语法问题

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♥♥♥初二英语语法问题
( ) The teacher told us yesterday that the earth _____ around the sun.
A.moves B.moved C.has moved D.was moving
( ) Look A big modern building ________ in our city.
A.is built B.was being built C.is being built D.has built
( )Old people must be looked after and _____ politely.
A.speak to B.spoken C.speak D.spoken to
( ) Hey ,look where you are going!---Oh,i 'm terribly sorry._________.
A.I'm not noticing B.I wasn't noticing C.I haven't noticed D.I don"t notice.
正确答案为:A C B B 为什么?☺☺☺☺☺
1选 A,当讲述的对象是客观真理的时候,事态采用一般现在时,不受句子其他时态的影响.
2选 C ,building是被修建,排除D,根据look,排除AB,答案为C.
3.选D,换成句子 We should look after the old people and speak politely to them.就好理解了,句子不过把old people提前做了主语,采用被动语态而已.
4.选B,我刚才没注意 ,是这在说Hey ,look where you are going!的人没发言之前没注意.
纯人工打出来的,答案有时候也是有错误的,别盲从教科书上的答案,要灵活思考.