Question

几道英语题目,在线等.

帮我解释分析下面几道英语题,解出其中原理.谢谢.

1.____ the days when all the old friends were happily together.
A.Going are B.To go is C.Gone are D.Are gone

2.-Why didn't you come yesterday?
-I ____,but I had an unexpected visitor.
A.had B.would C.was going to D.did

3.The research is so designed that once ____ nothing can be done to change it.
A.begins B.having begun C.beginning D.begun

Answer 1

1 c 这是个倒装，因为句子主语the days when....太长，英语不习惯头重脚轻，所以表语提前倒装。这里gone是形容词，意思是 “走了，离开了”。
2 c 表过去打算后面省略了come，跟后面的BUT相配合表本打算去，但是......。
3 d 这是个状语从句的省略，状语从句常常在引导词后省略掉主句的主语+be动词，或者it+be动词。那么这句话就是once引导从句，后面省略了the research is或者it is.补全句子变成 The research is so designed that once it is ___ nothing can be done to change it.
这样看就很明显了，应该是个被动，研究被开始，用过去分词。
回答完毕，希望对你有帮助。祝成功！

Answer 2

c c b/d

Answer 3

c
b
a

Answer 4

C
C
A

Answer 5

C C A

Answer 6

1. 选c 倒装句，因为从句里有were这个这个be动词，所以选项里只有gone能与之对应，表示 所有老朋友快乐相聚在一起的日子已经过去了。 The days when all the old friend were happily together are gone.

2.C 你就记住was going to表示原本打算就行了， 就像I was going to go，意思就是我原本打算去的
3．A， begin是个瞬间动词，永远不会有完成时态，整个句子都是一般时态，所以应相应选择begins。如Once he talks, he can not stop他一开始谈话就听不下来