2025年知识与能力训练八年级英语上册沪教版第51页答案
( ) 2.The children of the town would be
B
if the deadly disease struck the town. We needed medicine as soon as possible to stop other kids from getting sick.
A.harmless
B.helpless
C.fearless
D.careless

答案

B

解析

根据后句“needed medicine...stop other kids from getting sick”可知,致命疾病来袭时孩子们会无助,需要药物救助。A.harmless无害的;B.helpless无助的;C.fearless无畏的;D.careless粗心的。B符合语境。
( ) 3.He worked very hard and made full preparations for the exam. For this reason, he passed the exam and
A
got a full mark.
A.even
B.still
C.seldom
D.again

答案

A

解析

前半句表明他努力备考并通过考试,后半句“got a full mark”是比“passed the exam”更进一步的结果,“even”表示“甚至”,符合语境。“still”(仍然)、“seldom”(很少)、“again”(再次)均不符合逻辑。
(
A
) 4.Though the teacher tried to make the kids ______, the thunder won the battle for their attention.
A.concentrate
B.change
C.hide
D.sit

答案

A

解析

根据句意“尽管老师努力让孩子们______,但雷声还是吸引了他们的注意力”,可知此处需填“集中注意力”。A.concentrate(集中)符合语境;B.change(改变)、C.hide(隐藏)、D.sit(坐)均不符合。make sb. do sth.用动词原形,选A。
(
C
) 5.As one of the well-known scientists on space and time in the world, Hawking devoted his whole life to discovering the secrets of the ______.
A.ocean
B.planes
C.universe
D.astronauts

答案

C

解析

根据“scientists on space and time”可知霍金研究时空,相关的秘密应在“宇宙”范畴。A.ocean(海洋)、B.planes(飞机)、D.astronauts(宇航员)均与时空研究无关,C.universe(宇宙)符合语境。
(
B
) 6.Catherine aimed at finding a good job in a famous company, but the ______ of such jobs was very strong.
A.exam
B.competition
C.work
D.energy

答案

B

解析

本题可根据各选项的含义,结合句子语境来判断正确答案。
选项A:“exam”意为“考试”,放在句子中“但这样的考试非常激烈”,与“找好工作”的语境不匹配。
选项B:“competition”意为“竞争”,“the competition was very strong”表示“竞争非常激烈”,符合“在一家著名公司找好工作,竞争很激烈”的语境。
选项C:“work”意为“工作”,放在句子中“但这样的工作非常强烈”,语义不通。
选项D:“energy”意为“能量;精力”,放在句子中“但这样的精力非常强烈”,不符合语境。
(
A
) 7.*Closing the Gap* written by the American author Jay, gives advice on how to have a better ______ with your parents.
A.relationship
B.idea
C.environment
D.joke

答案

A

解析

根据句意“美国作家Jay所著的《Closing the Gap》就如何与父母建立更好的______给出了建议”,选项A“relationship(关系)”符合语境,“have a better relationship with sb.”表示“与某人有更好的关系”。B“idea(想法)”、C“environment(环境)”、D“joke(笑话)”均不符合题意。
(
C
) 8.Many old people don’t have good ______. They can’t watch TV but they can listen to music or news over the radio.
A.hearing
B.health
C.eyesight
D.time

答案

C

解析

题干提到“They can’t watch TV”,说明老人们无法看电视,但可以通过收音机听音乐或新闻,这表明他们的视力(eyesight)不好,而不是听力(hearing)、健康(health)或时间(time)的问题。因此,根据句意,选择与视力相关的选项。
(
B
) 9.John’s mum promised to attend his teacher-parent meeting. To his ______, his mother didn’t appear in the meeting finally.
A.enjoyment
B.disappointment
C.surprise
D.excitement

答案

B

解析

本题考查固定短语“to one's + 情感名词”,表示“令某人...的是”。根据题意,约翰的妈妈答应参加家长会但最终未出现,应表示令他失望。选项A“enjoyment”意为“愉快”;选项B“disappointment”意为“失望”;选项C“surprise”意为“惊讶”;选项D“excitement”意为“兴奋”。根据语境,应选B。
(
D
) 10.Your parents have given you many things in their lifetime, ______ you may not realize that until they are gone.
A.so
B.and
C.for
D.but

答案

D

解析

本题可根据各连词的含义及句子逻辑关系来选择合适的连词。A选项“so”表示因果关系,意为“所以”;B选项“and”表示并列或顺承关系,意为“和,并且”;C选项“for”表示原因,意为“因为”;D选项“but”表示转折关系,意为“但是”。前半句“Your parents have given you many things in their lifetime”(你的父母一生中给了你很多东西)和后半句“you may not realize that until they are gone”(你可能直到他们离开了才意识到这一点)之间是转折关系,所以应该用“but”连接。