请英语语法专家回答

来源:百度知道 编辑:UC知道 时间:2024/05/20 08:39:40
1.It is well konwn ______a person eats causes changes in the body
A.that what B.that C.what D.how

2You will easily know______video recorders are the same
A.what those B.that of those C. that all of Dwhich of those

3.we give him _________help we could

a.what .b.that c.which d.this

要解释的
怎么没人对啊

B
D
C

A
首先it is...that是强调句
然后what a person eats作为causes的主语
what是eat的宾语

B
of those是video recorders的主人
因为后面说了是the same所以选that

B
这里的help是名字,后面的we could作它的定语
用that

A that what ,that 是连在前面的,而what a person eats 是表示句子短语做后面的主语

2.B

3.A we could 后省略了give

1. c
it is well known 。。。it是形式主语
what a person eats 。。是真正的主语。
就是what a person eats。。。is well known

2。d
kown后面+宾语从句。在那些video recorders中,哪些是一样的。

3。a
what help we could(offer/give)

第一个选B it 做形式主语,里面只有that 最符合题意
第2个选C 宾语从句
第3个选A 宾语从句 what 为关系代词,注意和疑问代词what的区别
= we give him all the help that we could

1C
2C
3A

1,C. what 引导主语从句,在从句中做eat的宾语. it 是形式主语,代替由 what 引导的主语从句.
其他选项:(从句中缺宾语,而that引导主语从句是不能充当任何成分的,故不选A. B.多了that,由 what引导从句就够了.C在从句中要做状语,意思也不对.)

2.C 宾语从句中不缺成分和意义,用that 引导.而B选项加 上了of those后, 从句没主语了.

3.A what引导宾语从