【題目】Languages across the world are becoming extinct______ endangered mammals and four times endangered birds.

A. at twice the rate of B. as twice fast as

C. twice faster as D. twice at the rate of

【答案】A

【解析】句意：世界上的語言消亡的速度是瀕危動物滅絕速度的兩倍，是瀕危鳥類滅絕速度的四倍。分析可知固定短語at the rate of“以...的速度”，對比選項可知A選項采用“倍數(shù)+the+名詞+of”的表達(dá)方法。故選A。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】Listening to music at home is one thing, going to hear it ________ live is another.

A. being performed B. performed

C. performing D. having been performed

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】In the time of social reform, people’s state of mind tends to keep _____ with the rapid change of society.

A. contact B. progress C. touch D. pace

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】—Why is Mr. Li so happy this morning?

—Because he was honoured with a(n)______ for excellence in teaching.

A. present B. gift C. award D. reward

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】An increased concentration of carbon dioxide and certain other gases in the Earth’s atmosphere ______ global warming.

A. contributing to B. contribute to

C. contributes to D. to contribute to

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】He must have sensed that I ______ him. He suddenly glanced at me and said quietly, “Why are you staring at me like that?”

A. would look at B. looked at

C. was looking at D. am looking at

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】My father was 　　　　a gold cup for his beneficial scientific invention for the development of the company, which cost a lot of effort.

A. awarded B. prized

C. awarding D. prizing

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】The book ___ to me is very interesting.

A. you lent it B. you lent

C. that you lent it D. which you lent it

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】–Hi Tracy, you look tired.

–I am tired, I ______ the living room all day, and tomorrow I’ll continue painting it,

A.painted B.have been painting

C.had painted D.have painted

查看答案和解析>>

同步練習(xí)冊答案