Question

几道英语选择题，需要详细解释……谢谢啦

Without facts, we cannot form a worthwhile opinion for we need to have factual knowledge __________ our thinking.
A. upon which to base B. which to be based on
C. which to base upon D. to which to be based

______________ that they may eventually reduce the amount of labor needed on construction sites by 90 percent.
A. Such construction robots are clever
B. So clever the construction robots are
C. So clever are the construction robots
D. Such clever construction robots are

All flights__________ because of the storm, they decided to take the train.
A. having canceled B. were canceled
C. have been canceled D. having been canceled

区分 guilt charge blame accusation 这四个词各自是用在什么场合？

Answer 1

1 B. which to be based upon
解释：we need to have factual knowledge __________ our thinking.
我们需要基于我们想法的实际知识，也就是表达“实际知识基于我们的想法”
这个含义，可以用
which（指代factual knowledge） is based on our thinking.
or
which to be based on our thinking.

二者等价。

2 C. So clever are the construction robots

So... that句型，so在前主谓倒装，所以are在robots前，一般倒装不用such...that。

3 D. having been canceled

由于后面的一句是主语，所以All flights__________ because of the storm只可能是一个短语，这里应该是被动语态，“被取消”，所以是having been canceled.

区分 guilt charge blame accusation
guilt 负罪感，用于某人做了错事之后感到良心不安
charge， accusation 二者均为指控，一般表达为 charge...with，accuse of例如：
在警察局他被正式控告犯谋杀罪。
At the police station, he was formally charged with murder.

他被指控为不称职。
He was accused of incompetence.

blame 责备，一般是小错误，如:
The driver was not to blame for the accident.
这次事故怪不着司机。

Answer 2

1.疑问词+不定式以及定语从句，末尾的介词往往可以提前，此句是词组base……upon/on……,所以选择A。
2.此句考的是so开头的句子要倒装，所以选择C。AD是such开头，不能作主语，故错。B没倒装。
3.此句中间是用逗号连接的，因此需要有引导词引导从句

Answer 3

1.疑问词+不定式以及定语从句，末尾的介词往往可以提前，此句是词组base……upon/on……,所以选择A。

2.此句考的是so开头的句子要倒装，所以选择C。AD是such开头，不能作主语，故错。B没倒装。

3.此句中间是用逗号连接的，因此需要有引导词引导从句。可是却没有引导词，因而只能用非谓语动词。BC不是非谓语，排除。
A不是被动，也排除。选D。

区别：
guilt对自己，自责
blame对别人，程度较轻，仅仅责备，埋怨，怪罪
charge 程度严重，控告
accusation 法律术语，控告

Answer 4

ACC