选取：1 Do you know when the telephone----?A was invented B invented C has invented D were invented2 kites___messages in the war in the past.A are used for sending B were used to sending C are used send D were used to send

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选取：1 Do you know when the telephone----?A was invented B invented C has invented D were invented2 kites___messages in the war in the past.A are used for sending B were used to sending C are used send D were used to send
选取：
1 Do you know when the telephone----?
A was invented B invented C has invented D were invented
2 kites___messages in the war in the past.
A are used for sending B were used to sending C are used send D were used to send

选取：1 Do you know when the telephone----?A was invented B invented C has invented D were invented2 kites___messages in the war in the past.A are used for sending B were used to sending C are used send D were used to send
1.A
电话是被发明,应该用被动式,而 telephone用的单数,所以系动词不用复数.
翻译成：你知道电话是什么时候发明的么?
2.D
翻译成：在过去,战争中风筝被用来传送信息.
过去式,应该用WERE,be used to do 被用作……

A B be动词加ed表被动

1 A
2 D

1.A.这里是考查被动语态，因时间已过去，并主语telephone 是单数，所以选A
2.D。也是考查被动语态，因时间已过去，主语kites 是复数，故选D。
如答案A的are 是were 也可以用
be used to do sth.强调目的
be used for doing.强调用途，作用
在这两者都适用。...

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1.A.这里是考查被动语态，因时间已过去，并主语telephone 是单数，所以选A
2.D。也是考查被动语态，因时间已过去，主语kites 是复数，故选D。
如答案A的are 是were 也可以用
be used to do sth.强调目的
be used for doing.强调用途，作用
在这两者都适用。

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