题目内容

The police still haven’t found her, but they’re doing all they .

A. will B. can C. may D. must

 

B

【解析】

试题分析:句意:这有两本关于这个学科的书,但是我不确定哪本书更好。两者比较要用比较级,特指的要用定冠词the。故选B。

考点:考查形容词的比较级。

 

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What is the first thing you want to do when you see someone yawn(打哈欠)?You want to yawn, too! Yawning is contagious.

Scientists have found that all people yawn. Babies start to yawn even before they are born. The earliest yawn takes place when a baby is still inside its mother. When young children are about one year old, they start to yawn when they see others yawning. That’s why scientists seem to think yawning is contagious.

It’s no secret that yawning is contagious, but why do we yawn? Well, scientists are not really sure.

Some think we yawn because we feel bored. Recently scientists studied two groups of students between the ages of 17 and 19. One group watched music videos, and the other watched a boring color test. Scientists compared the numbers of their yawns and found that the color test group yawned more times than the video group.

Another reason for yawning has to do with breathing. Some scientists believe that when we are bored or tired, we breathe more slowly. As our breathing slows down, we cannot get rid of (去除)enough carbon dioxide, our bodies will tell the brains(大脑)to breathe deeply. The result is a big yawn.

In 2007, scientists suggested a new reason. They said that the reason why people yawned was to cool down their brains. These scientists found that people who were warmer than others yawned more often.

Scientists are still trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, almost everyone else nearby wants to yawn, too.

1.The underlined word “contagious” in Paragraph 1 means _________.

A. helpful to our health

B. passing from one person to another

C. hard to understand

D. getting into one trouble after another

2.According to the scientists, people start to yawn when they are _______.

A. bornB. one year oldC. 17 or 19 years oldD. inside their mothers

3.Which of the following are the possible reasons for yawning according to the passage?

People yawn because they are bored

People yawn to catch others’ attention

People yawn to cool down their brains

People yawn to get rid of carbon dioxide.

A. ①②③B.②③④C.①②④D.①③④

4.We can probably read this passage in a ____________

A. storybookB. travel guidebookC. movie posterD. science magazine

 

On February 9th, 2013, Sarah Darling was walking along the street when she met a homeless man named Billy Ray Harris. She reached into her change purse, emptied out all the coins she had and gave them to the homeless man. Neither of them realized that this small generous act would change their lives.

Sarah didn’t realize that she had given Billy not only all her change but also her diamond ring that she had put in her change purse earlier until the following morning. She and her husband, Bill Krejci, rushed to see if they could find Billy. The homeless man was not only in the same place, he also immediately returned the ring. The grateful couple paid him back for his honesty by emptying out their pockets of all the money they had.

Bob Krejci, a web designer, felt that he needed to do something more for this amazingly honest man. So on February 18th, he set up a special page to raise money for him. In just four days, Billy received over $85,000 and there seems to be no end yet.

That is not enough. Billy is living with a person who is generous instead of living in the streets. And that’s not all—Thanks to the news report, he got together again with his older brother, Edwin Harris who he had been unable to find for 27 years.

All the good luck is just because Billy did the right thing—returning something that did not belong to him.

1.When did Sarah realize that she had also given Billy her diamond ring?

A. On February 9th, 2013 B. On February 10th, 2013

C. On February 18th, 2013 D. On February 22nd 2013

2.Which of the following is NOT mentioned in the passage?

A. Billy is living with a generous person.

Billy has found his brother.

Billy bought a diamond ring.

Billy appeared in the news report

3.The underlined word “That” in Paragraph 4 refers to(指代) “________”.

A. returning the ring B. setting up a page

C. living in the streets D. receiving money

4.What’s the best title of the passage ?

A. Generous Woman Changed Her Own Life

B. Kind Man Set Up Special Page

C. Homeless Man Returned Diamond Ring

D. Many People Donated Much Money

 

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