仁爱英语同步练习册九年级仁爱版广东专版
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答案：
(
A
)4. —Do you know which language is spoken ______ the largest number of people in the world?
—I think Chinese is.
A. by
B. as
C. to
D. in
答案：A
解析：句意为“—你知道世界上使用人数最多的语言是哪种吗？—我认为是汉语。”“be spoken by...”表示“被……说”，by引出动作的执行者，选A。
( )5. —Your oral(口头的) English is very good. But I think you should spend a little more time on your written English.
—______
A. That's a good idea.
B. Thanks. I will.
C. I'm sorry to hear that.
D. What a shame!
答案：B
解析：上句是对方提出的建议，对于别人的建议和夸奖，应先感谢再表示会采纳，“Thanks. I will.”符合语境，选B。
Pollution is a serious problem in big cities
all over
the world.
答案：all over
解析：“throughout the world”表示“全世界”，其同义短语是“all over the world”，所以填“all over”。
2. Today people use computers in both cities and towns. (改为被动语态)
Today
computers are used by
people in both cities and towns.
答案：computers are used by
解析：主动语态变为被动语态，将宾语computers作主语，谓语动词use变为被动形式“are used”，by引出动作的执行者people，所以填“computers are used by”。
A letter
is written
to my parents by
me
once a month.
答案：is written; me
解析：主动语态变为被动语态，将宾语a letter作主语，谓语动词write变为被动形式“is written”，by引出动作的执行者I，此处用宾格me，所以填“is written; me”。
I
hope to
go to Beijing University one day.
答案：hope to
解析：“hope+宾语从句”可以转换为“hope to do sth.”，表示“希望做某事”，所以填“hope to”。
5. George has worked much harder in math for one year. Now he
is good at
it. (同义句转换)
答案：George has worked much harder in math for one year and now he is good at it.
解析：“does well in”表示“擅长”，其同义短语是“is good at”，所以转换为“George has worked much harder in math for one year and now he is good at it.”（注：原句未给出具体转换要求，根据常见同义短语转换，此处用“is good at”替换“does well in”，并补充连接词“and”使句子连贯。）
