题目

1.Helping others is a habit,__________you can learn even at an early age.
A.it
B.that
C.what
D.one
2.The country has already sent up three unmanned spacecraft,the most recent ______at the end of last March.
A.has been launched
B.having been launched
C.bing launched
D.to be launched
3.--I'm sorry I broke the vase
--Oh,_______.It wasn't very expensive.
A.you'd better not
B.I'm afraid not
C.as you wish
D.that's all right
4.Knowing office rules--whether _______or not--is critical,especially for young job seekers.
A.written
B.writing
C.being written
D.having been writte,
5.______to too much sunlight,as is generally considered,will add to the potential of catching skin cancer.
A.Being exposed
B.Exposed
C.Exposing
D.To expose

提问时间：2021-03-21

答案

都是瞎推荐,哎.
更正被推荐答案第一题!
1.D
one是a habit的同位语,而后面的you can learn even at an early age为省略关系代词that的定语从句.
其中关系代词that代替先行词one,在定语从句中充当learn的宾语,所以可以省略.
2.B
逗号前后部分主语不同,但是之间又没有连词and等引导,说明后面部分是独立主格结构.
考查独立主语the most recent (unmanned spacecraft)和非谓语动词launch之间为被动关系,且launch该动作已经发生,所以用having been done结构.
3.D
前面有I'm sorry,所以用That's all right回答,其意思是“没关系”.
4.A
此题考查状语从句的省略,即：
whether written or not = whether (office rules are) written or not
很明显被省略的主语office rules和write之间为被动关系,所以用其过去分词.
5.A
选项做句子主语,所以用动名词或不定式结构,排除B；
句意明显为被动,排除主动结构的CD.
A为动名词的被动结构,做该句的主语.