题目内容

【题目】the students in this school is about four thousand,of them are boys.
A.A number of, three fifth
B.The number of, three fifths
C.A number of, three fifths
D.The number of, three fifth

【答案】B
【解析】此题考查分数的表示方法。分数在英语中通常是借助于基数词和序数词来共同表达的。其中基数词表示分子,序数词表示分母。分子超过1,分母要加s.分数修饰名词时,若该名词是不可数名词只能用单数;若是可数名词,用单数或复数均可。但是,若它们在句子中作主语,则谓语动词是用单数还是复数取决于名词,即与分数所修饰的名词保持一致。根据语境可知此句的含义是这所学校的学生大约有四百人,其中五分之三的是男生。表示…的数量要用名词短语the number of,五分之三要用three fifths, 故选B。

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【题目】根据短文内容,选择正确答案。
B
Researchers have discovered the first Earth-sized planet. It was first marked by NASA's Kepler telescope(望远镜) so it's called Kepler-186f. It lies about 500 light years from Earth and goes around its star. The planet is the right distance from its star for water: not too close or not too far. Water is one important condition that scientists guess is necessary for life. So it could have water and possible life. It's called a true Earth cousin.
"This planet is an Earth cousin, not an Earth twin," said Barclay, who is among a team of scientists reporting on the discovery in the magazine Science this week.
"It's very exciting to find a planet similar to the Earth," Barclay said, "It's not easy work because things change as we get more measurements."
Scientists don't know anything about the air of Kepler-186f, but it will be a task for future telescopes which can study for chemicals that have something to do with life.
"It's possible for life to live in this planet, but that doesn't mean there is life in it," Barclay said.
So far, scientists have found nearly 1,800 planets in the universe.
"The past year has seen a lot of progress in the search for Earth-like planets. Kepler-186f is very important because it is the first planet that is the same temperature and is almost the same size as Earth," scientist David Charbonneau wrote in an email.
(1)Scientists have already found about _______ planets now.
A.500
B.186
C.1,800
D.1,801
(2)Which of the following about Kepler-186f is NOT true according to the passage?
A.It could have water and possible life, so perhaps we might live there.
B.It's almost as hot as and as large as Earth.
C.In the future, scientists will study the chemicals of it by telescope.
D.It's an Earth-like planet.
(3)We can probably read this article in _______.
A.a story book
B.a newspaper
C.a text book
D.a sport magazine
(4)Which of the following is the best title?
A.Space research.
B.Journey to space.
C.Is there water and possible life in Kepler-186f?
D.Scientists discover the most Earth﹣like planet.

【题目】 Old habits, especially bad ones, can be hard to break.

People often make fun of New Year's resolutions (决心). However, resolutions present a big opportunity for self-improvement. Fortunately, social science has some ideas about how to start a good habit and stick to it.

Gary Charness and Uri Gneezy, two scientists at the University of Chicago, did some research, where 120 students were asked to take part in an experiment about exercise habits, and each of them would get $175 in the end. The students were randomly assigned (随机分配) to three groups. The first group got the money for just giving researchers permission (允许) to record their gym attendance (出勤). The second group gave permission, but had to go to the gym at least once the next month. The final group gave permission and had to go to the gym eight times that month.

Unsurprisingly, the group that had to make eight gym visits to get paid exercised more than the other two groups. After the payments stopped, these students kept going to the gym at higher rates (频率). They went to the gym about twice as often as the other two groups.

In another study, researchers invited 151 students to work out in the gym, and randomly assigned 75 to a "temptation-bundling" group. As they exercised, they listened to the start of an attractive audio-novel (有声小说).At the end of their workout, students were told that if they wanted to hear what happened next in their book, they would have to come back to the gym .They could only listen to the audio-book while exercising. The other 76 students also completed the first workout but without any kind of temptation bundle.

It turned out that the students in the temptation-bundling group visited the gym 27% more often than the control group over the next seven weeks. Sadly, the temptation-bundling trick fell apart over the Thanksgiving holiday when the gym was closed.

The studies show that trying something new quite often for as little as a month can kick-start a lasting change in behavior. Moreover, "temptation-bundling" may also be a useful method for changing behavior, particularly when used together with other methods. Even if you cannot promise yourself to stick with something for long, there is a huge benefit in putting in a lot of energy for a few weeks. It may pay off for longer than you think. So, why not challenge yourself with next New Year's resolution?

1What can we learn from the two studies?

A.The students got different payments according to their gym attendance.

B.The temptation-bundling group loved audio-novels more than the other group.

C.The students who exercised more often at first were more likely to keep working out.

D.27% of students in the temptation-bundling group exercised more often than before.

2The third paragraph is mainly about ________.

A.what was found in the research

B.how the research was performed

C.why the scientists did the research

D.who took part in the research

3The underlined word "temptation-bundling" in Paragraph 5 probably means ________.

A.forming new habits by trying something you didn't like before

B.pushing yourself by doing two tasks at the same time

C.improving your workout skills by listening to audio-books

D.connecting something you like with something you have to do

4What is the writer's main purpose in writing this passage?

A.To encourage people to go to the gym more often.

B.To present a new way to do scientific research.

C.To offer advice on how to develop a good habit.

D.To stress the importance of New Year's resolutions.

【题目】 It was Saturday again. Grace and Karen disliked Saturdays. That was another thing the twins had in common. They shared the same clothes and tied their hair in the same manner. In fact, it was d1for their classmates and teachers to tell them apart sometimes.

Unlike their classmates, they had to get up early at seven every Saturday to prepare for their lessons. Grace had to a2 the art lesson and Karen had to attend her ballet lesson. "How I wish I could do something different today," said the twins with one v3. All at once, an idea came to Grace and Karen at the s4 time. "How would you like to be me for a day?" they asked each other. It seemed like a w5 plan to them. After giving each other a description of their own friends, Grace put on Karen's ballet dress while Karen put Grace's b6 and paints into her bag. Then they left for their classes.

When the art lesson started, Karen was lost. Unlike Grace, Karen was poor at drawing. When the art lesson f7 ended, Karen didn't dare to hand in her work.

Meanwhile, Grace was struggling in the ballet class as well. As she had no idea about the dance steps, she had to follow her classmates blindly. As a result, she k8knocking into them. Their ballet teacher became i9with her, "Karen, you should remember the basic steps. You can't rely on copying what others are doing."

When Karen and Grace got home, they were tired out. They d10 that they would never try to be someone else they were not. It seemed that the grass was not always greener on the other side.

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