1.All animals need air and ___ .

1.All animals need air and ___ .
A.so need plants B.so do plants
怎么判断need在这儿是实意动词还是情态动词呀?选哪一个呢?另外一个为什么不对呢?
2.I suppose she __ be about fifty when she died.A.would B.may C.should
3.If you undertake this project you are bound to __ many difficulties.
A.encounter B.face with
选什么?

liy0512 1年前已收到1个回答举报

云峰之露幼苗

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1、B.后面用动词原形则need是情态动词.如：Need you wash the clothes?
后面用名词或者动词不定式时,作实意动词.如：I need you./You need to do something to improve yourself?
2、A.这应该是个虚拟句.虚拟语气中时态都要用过去,would用在此表过去将来时.
3、B.be faced with= face,在这里和encounter同义.

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liy0512 举报

2.suppose的虚拟不是要用should吗？ 3.答案选A

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2、这是一种虚拟，另一种虚拟是用过去时态。如：If I were you, I wouldn't have broken my promise. 如果我是你，我就不会背弃承诺。 3、就是选A，解析是对的，B少了一个be。

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