高中英语题目，求详细解题步骤谢谢！

Question

37.Yesterday the League secretary and monitor ______ asked to make a speech at the meeting.
A.is B.was C.are D.were.
38.Mary as well as her sisters ______ Chinese in China.
A.are studying B.have studied C.studies D.study
39.The rich______ not always happy.
A.are B.is C.will D.may
40. ______can be done ______done.
A.All, have been B.All that ,have been C.All has D.All that ,has been
41.Either of the plans ______equally dangerous.
A.are B.is C.has D.have

Answer 1

37.选B。the League secretary and monitor指的是同一个人（有两个头衔），如果是the League secretary and the monitor 就是指两个不同的人了。所以这里选过去式的单数was，其实从后面的make a speech就知道选单数了。

38.选C。A as well as B句式做主语重点在A，判断谓语形式时可直接无视B，所以选单数studies。

39.选A。先排除C、D，这两项都没谓语。the rich 指的是富人，不只是一个人，自然不能用单数。

40.选D。先排除A和C，选它们的话这句话就出现两个谓语了。那么就只能用状语从句做主语，而All that can be done是抽象不可数的，自然谓语要选单数has been

41.选B。首先排除C和D，没谓语。either of 指两者中任何一个，谓语要用单数，选is。

Answer 2

37[B]
.Yesterday the League secretary and monitor B.was ____ asked to make a speech at the meeting. [the +n.and+n. 指的是同一个人的两种身份
the +n.and+the +n. 指的是两个人
且为过去

38[C]
A as well as B" 做主语时，则主语根据A 就远一致

39.
.[A]The rich指一类人
the+形容词表示某一类人，用复数
The rich这里指富人们
40[D]
all that can be done has been done.定语从句 all用that
all that = every thing that

41[B]

either:任何一个,所以后面用单数形 考查主谓一致

学习进步^^

Answer 3

37b.两个名词前面只有一个冠词修饰并且用and连接时说明这个人兼有这两个职务，就视单数
38c因为as well as 连接名词只看前面的名词
39the加形容词特指一类人应视为得数选a,这里happy作的表语前面应该有连系动词
40all在这里作为代词其后跟从句应用that引导，其后作为整体视为单数所以选d
41either作为主语视为单数.这里选b.be动词作为系动词后可接形容词。

Answer 4

37.选 B，单数，过去式
38.选C，单数，注意是Mary
39.选A，类别，复数，一类人
40.选B，这个没什么好说的，注意主句和复句的区别就行了。
41.选A，复数主语，dangerous是形容词，用are

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