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河南师范大学-小学教育（本科)-大学英语Ⅱ
题数
48
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【单选题】
[1/48]Which of the following best describes the author‘s tone in this passage?
A.
Optimistic.
B.
Critical.
C.
Objective.
D.
Arbitrary.
参考答案：
C
参考解析：
无
【单选题】
[2/48]We can conclude from the passage that ________.
A.
while pushing asteroids off course nuclear weapons would destroy the world
B.
asteroids racing across the night sky are likely to hit Earth in the near future
C.
the worry about asteroids can be left to future generations since it is unlikely to happen in our lifetime
D.
workable solutions still have to be found to prevent a collision of asteroids with Earth
参考答案：
D
参考解析：
无
【单选题】
[3/48]What do people think of the suggestion of using nuclear weapons to alter the courses of asteroids?
A.
It sounds practical but it may not solve the problem.
B.
It may create more problems than it might solve.
C.
It is a waste of money because a collision of asteroids with Earth is very unlikely.
D.
Further research should be done before it is proved applicable.
参考答案：
B
参考解析：
无
【单选题】
[4/48]What do scientists say about the collision of an asteroid with Earth?
A.
It is very unlikely but the danger exists.
B.
Such a collision might occur once every 25 years.
C.
Collisions of smaller asteroids with Earth occur more often than expected.
D.
It‘s still too early to say whether such a collision might occur.
参考答案：
A
参考解析：
无
【单选题】
[5/48]What does the passage say about asteroids and meteoroids?
A.
They are heavenly bodies different in composition.
B.
They are heavenly bodies similar in nature. 【外语教育&网www.for68.com】
C.
There are more asteroids than meteoroids.
D.
Asteroids are more mysterious than meteoroids.
参考答案：
B
参考解析：
无
【单选题】
[6/48]Commercial application of the research finding will be possible if salad cream can be made resistant...
A.
by varying its chemical composition
B.
by turning it into a solid lump
C.
while keeping its structure unchanged
D.
while retaining its liquid form
参考答案：
D
参考解析：
无
【单选题】
[7/48]According to Brocklehurst, we can keep cream fresh by ________.
A.
removing its fat
B.
killing the bacteria
C.
reducing its water content
D.
altering its structure
参考答案：
D
参考解析：
无
【单选题】
[8/48]According to the researchers, cream sours fast than butter because bacteria ________.
A.
are more evenly distributed in cream
B.
multiply more easily in cream than in butter
C.
live on less fat in cream than in butter
D.
produce less waste in cream than in butter
参考答案：
B
参考解析：
无
【单选题】
[9/48]The significance of Brocklehurst‘s research is that ________.
A.
it suggested a way to keep some foods fresh without preservatives
B.
it discovered tiny globules in both cream and butterwww.Examw.com
C.
it revealed the secret of how bacteria multiply in cream and butter
D.
it found that cream and butter share the same chemical composition
参考答案：
A
参考解析：
无
【单选题】
[10/48].What does the author say about straight, horizontal bars painted across roads?
A.
They are falling out of use in the United States .
B.
They tend to be ignored by drivers in a short period of time.
C.
They are applicable only on broad roads.
D.
They cannot be applied successfully to traffic circles.
参考答案：
B
参考解析：
无