---How many students have visited the West Lake? ---________.
A. No one B. Nobody C. None
【答案】C
【解析】句意：——多少学生已经参观了西湖？——没有一个。No one，nobody没有人，对who提问时的回答；None没有一个，对How many提问时的回答，故选C。
【题型】单选题
【结束】
21
The story is hard to understand, _____ there are no new words in it.
A. so B. but C. though
【答案】C
【解析】句意：那个故事很难理解，尽管里面没有生单词。so所以，but但是；though尽管。结合句意，此处表示让步关系，故用连词though，故选C。
【题型】单选题
【结束】
22
Forests are very important to human beings, a lot of water _____by forests.
A. save B. can be saved C. can save
【答案】B
【解析】句意：森林对于人类来说非常重要，很多水可以被森林节约下来。根据by forests可知此处用被动语态，故选B。
【题型】单选题
【结束】
23
As students, we should study hard and try to ______ every day.
A. satisfy our needs B. make progress C. comfort ourselves
_____of the land in that area ______covered with trees and grass.
A. Two fifths; is B. Two fifth; are C. Two fifth; is
【答案】A
【解析】句意：在那个地区五分之二的土地被树木和草覆盖。表示分数时，分子大于一时，分母用复数形式。当分数修饰名词作主语时，谓语根据所修饰的名词来判断，此处的名词land是不可数名词，故谓语用单数is，故选A。
【题型】单选题
【结束】
20
---How many students have visited the West Lake? ---________.
A. No one B. Nobody C. None
【答案】C
【解析】句意：——多少学生已经参观了西湖？——没有一个。No one，nobody没有人，对who提问时的回答；None没有一个，对How many提问时的回答，故选C。
【题型】单选题
【结束】
21
The story is hard to understand, _____ there are no new words in it.
A. so B. but C. though
【答案】C
【解析】句意：那个故事很难理解，尽管里面没有生单词。so所以，but但是；though尽管。结合句意，此处表示让步关系，故用连词though，故选C。
【题型】单选题
【结束】
22
Forests are very important to human beings, a lot of water _____by forests.
A. save B. can be saved C. can save
_____of the land in that area ______covered with trees and grass.
A. Two fifths; is B. Two fifth; are C. Two fifth; is
【答案】A
【解析】句意：在那个地区五分之二的土地被树木和草覆盖。表示分数时，分子大于一时，分母用复数形式。当分数修饰名词作主语时，谓语根据所修饰的名词来判断，此处的名词land是不可数名词，故谓语用单数is，故选A。
【题型】单选题
【结束】
20
---How many students have visited the West Lake? ---________.
A. No one B. Nobody C. None
【答案】C
【解析】句意：——多少学生已经参观了西湖？——没有一个。No one，nobody没有人，对who提问时的回答；None没有一个，对How many提问时的回答，故选C。
【题型】单选题
【结束】
21
The story is hard to understand, _____ there are no new words in it.
A. so B. but C. though
— Are Jack and Tim playing outside?
— ________. They are doing their homework in the study.
A. Either B. Both C. Neither
【答案】C
【解析】句意：——杰克和蒂姆正在外面玩吗？——都没有。他们正在书房里做作业。Either两者中的任何一个；both两者都；neither两者都不。根据They are doing their homework in the study.可知他们都在做作业，没有一个在外面玩，故用neither，故选C。
【题型】单选题
【结束】
19
_____of the land in that area ______covered with trees and grass.
A. Two fifths; is B. Two fifth; are C. Two fifth; is
【答案】A
【解析】句意：在那个地区五分之二的土地被树木和草覆盖。表示分数时，分子大于一时，分母用复数形式。当分数修饰名词作主语时，谓语根据所修饰的名词来判断，此处的名词land是不可数名词，故谓语用单数is，故选A。
【题型】单选题
【结束】
20
---How many students have visited the West Lake? ---________.
A. No one B. Nobody C. None
—Jane, how long have you been in China?
—I here two years ago and I in China for two years.
A. came; have been B. have been; came C. came; have gone
【答案】A
【解析】试题分析：句意：--Jane,你待在中国多久了？--我两年之前来的，并我已经在中国有两年的时间。根据时间状语two years ago可知用一般过去时态；第二个空用现在完成时have done的用法。根据题意故选C。
考点：考查动词的时态。
【题型】单选题
【结束】
18
— Are Jack and Tim playing outside?
— ________. They are doing their homework in the study.
A. Either B. Both C. Neither
【答案】C
【解析】句意：——杰克和蒂姆正在外面玩吗？——都没有。他们正在书房里做作业。Either两者中的任何一个；both两者都；neither两者都不。根据They are doing their homework in the study.可知他们都在做作业，没有一个在外面玩，故用neither，故选C。
【题型】单选题
【结束】
19
_____of the land in that area ______covered with trees and grass.
A. Two fifths; is B. Two fifth; are C. Two fifth; is
—Jane, how long have you been in China?
—I here two years ago and I in China for two years.
A. came; have been B. have been; came C. came; have gone
【答案】A
【解析】试题分析：句意：--Jane,你待在中国多久了？--我两年之前来的，并我已经在中国有两年的时间。根据时间状语two years ago可知用一般过去时态；第二个空用现在完成时have done的用法。根据题意故选C。
考点：考查动词的时态。
【题型】单选题
【结束】
18
— Are Jack and Tim playing outside?
— ________. They are doing their homework in the study.
A. Either B. Both C. Neither
