问题 选择题

下列说法错误的是[ ]

A.

将菜炒熟的过程中,分子热运动加剧,香味越来越浓

B.

将活塞迅速压下时,筒内空气的温度升高,蘸了乙醚的棉花燃烧起来

C.

1Kg的汽油在气缸内燃烧放出的热量,就是汽油的热值

D.

由于沙石的比热容比海水的小,导致沙漠地区的昼夜温差比沿海地区的大

答案

答案:C

单项选择题

阅读下列短文,从每题所给的四个选项(A、B、C和D)中选出最佳选项,并在答题卡上将该项涂黑。

                              A

You probably know who Marie Curie was,but you may not have heard of Rachel Carson.Of the outstanding ladies listed below,who do you think was the most important woman of the past 100 years?

Jane Addams(1860-1935)

Anyone who has ever been helped by a social worker has Jane Addams to thank.Addans helped the poor and worked for peace. She encouraged a sense of community(社区)by creating shelters and promoting education and services for people in need In 1931,Addams became the first American woman to win the Nobel Peace Prize.

Rachel Carson(1907-1964)

If it weren’t for Rachel Carson, the environmental movement might not exist today.Her popular 1962 book Silent Spring raised awareness of the dangers of pollution and the harmful effects of chemicals on humans and on the world’s  lakes and oceans.

Sandra Day O’Connor(1930-present)

When Sandra Day O’Connor finished third in her class at Stanford Law School, in 1952,she could not find work at a law firm because she was a woman. She became an Arizona state senator(参议员) and ,in 1981, the first woman to join the  U.S. Supreme Court. O’Connor gave the deciding vote in many important cases during her 24 years on the top court.

Rosa Parks(1913-2005)

On December 1,1955,in Montgomery,Alabama,Rasa Parks would not give up her seat on a bus to a passenger. Her simple act landed Parks in prison.But it also set lff the Montgmery bus boycott. It lasted for more than a year, and kicked off the civil-rights movement. “The only tired I was, was tired lr giving in,”said Parks.

What can we infer about the women mentioned in the text?()

A. They are highly educated.

B. They are truly creative.

C. They are pioneers.

D. They are peace-lovers.

单项选择题