题目内容

The shocking news made me realize ______ terrible problems we would face.

A. thatB. howC. whatD. why

练习册系列答案
相关题目

Dog Fancy

Cover Price: $ 59.88 Price: $ 12.00 ($ 1.00 / issue)

Details:

Dog Fancy is information driven and provides opportunity for reader interaction. Every issue includes a fold-out four-color poster. Your complete guide helps you better understand, care for and enjoy your dog.

Dog for Kids

Cover Price: $ 23. 94 Price: $ 12.99 ($2.17 / issue)

Details:

Dogs for Kids offers interactive and educational activities, which is intended for children (ages 8 to 12) who love dogs and puppies. Each full-color issue has training tips, fun activities to do with dogs, games, puzzles and posters. Dogs for Kids has received the Maxwell Award for Special Interest Magazines from the Dog Writer’s of America for 2 years in a row.

The Bark

Cover Price: $ 19.80 Price: $ 15.00 ($ 2.50 /issue)

Details:

The Bark magazine is designed to include everything related to dog culture. Each issue includes stories, essays, poetry, reviews, interviews and artwork related to the relationship between humans and dogs. The Bark is not a how-to-care-for-your-dog magazine. It’s a magazine about living with dogs, which is your magazine: touching, smart and simply wonderful.

Dog World

Cover Price: $ 48.88 Price: $ 15.00 ($1.25 / issue)

Details:

Dog World is written for the dog enthusiasts, including professionals in the pet industry. Articles entertain and educate readers about dog health-care, nutrition, appearance, training and behavior and the law. Dog World is a must–read for its devoted, loyal dog–loving readers.

1.Who would be most interested in the above magazines?

A. Wildlife protectors.

B. Story book writers.

C. Pet dog owners.

D. City zoo managers.

2.Which magazine saves most?

A. Dog Fancy. B. Dogs for Kids.

C. The Bark. D. Dog World.

3.The underlined word “enthusiasts” in the last part means _____.

A. 主人 B. 兽医 C. 专家 D. 狂热者

Our class has ___________three papers so as to keep up on current events.

A. subscribed to B. contributed to

C. depended on D. applied for

We all know that eating junk food can make us fat. However, a new study suggests that it can do more than that – it can also make us lazy, reported CBS News.

In the study, researchers at the University of California, Los Angeles, US divided 32 female rats into two groups. The first group was fed a diet of healthy food such as corn and fish, while the second was given a diet of highly processed (加工的) food rich in sugar, namely “junk food”.

Within three months, the rats in the second group were already much fatter than those on the healthy diet. And when researchers trained the rats to do simple tasks, they found even more differences between the two groups rather than weight.

During the task – pushing a lever (杠杆) to receive a reward of sugar water – the rats on the junk food diet were found to be less willing to move, and they took longer breaks between each push than the lean rats did.

“It is as if the rat is thinking ‘This is too much work’,” Aaron Blaisdell, leader of the study, told the Los Angeles Times.

But what about the possibility that the fat rats were less passionate about getting sugar water because they were already eating lots of sugar in their daily diet? That’s why researchers repeated the tests by rewarding fat rats with plain water when they were extremely thirsty. However, the results came out just the same.

According to researchers, these differences suggest that junk food changed the chemistry in the rats’ brains.

The experiment didn’t end there. After six months, the rats’ diets were switched, and the overweight rats were given a healthy diet for nine days. However, this change didn’t help reduce their weight or improve their ability to perform tasks, which means the effects of their junk food diet persisted (持续存在). “There’s no quick fix,” said Blaisdell.

For a long time, we’ve believed that people become fat because they are lazy. But this study has proven the opposite to be true as well, which indicates that laziness and obesity are a “vicious cycle (恶性循环)”.

So, if you constantly feel tired, lacking any urge to get up from your chair, it could be that you’ve been studying too hard. But you should also pay attention to your diet.

1.During the first three months of the experiment by researchers at the University of California, ______.

A. rats from the healthy diet group ate nothing but corn and fish

B. rats on the junk food diet ate more than those on healthy diet

C. rats on the healthy food diet performed better at simple tasks than those on the junk food diet

D. rats on the junk food diet seemed uninterested in sugary food

2.The researchers rewarded thirsty rats with plain water in the lever test to ______.

A. help them control their weight

B. test whether fat rats lost interest in the test because they had taken enough sugar

C. change the diet habits of fat rats

D. find out the influence of sugar on rats’ brains

3. The underlined word “there” refers to ______.

A. after the rats on the junk food diet had worked hard to get sugar water

B. after the type of food rats prefer had been identified

C. after a quick cure for obesity had been found

D. after the fact that fatter rats are lazier than lean rats had been found

4.We can conclude from the article that ______.

A. fat people are usually lazier than lean people

B. people should switch between different types of diets to keep healthy

C. being overweight and being lazy can feed into each other

D. laziness is the main cause of weight problems

5.Which of the following is Not Right according to the passage?

A. Eating junk food can make us fat.

B. Researchers got different results after repeated the tests to fat rats.

C. For a long time, we’ve believed that people become fat because they are lazy.

D. If you constantly feel tired or study too hard, you need to pay attention to your diet.

— Did you go to last night’s concert?

— Yes. And the girl playing the violin at the concert _______ all the people present with her excellent ability.

A. impressedB. comparedC. conveyedD. observed

The two girls are so alike that strangers find _____ difficult to tell one from the other.

A. itB. themC. herD. that

A Dutch artist and designer has come up with a device which he hopes will get rid of pollutants from Beijing's smog skies, creating clean air for the city's mask-wearing people.

An electromagnetic field（电磁场） will pull particles（微粒） in the smog to the ground where they can be easily cleaned.

“It’s like when you have a balloon which has static（静电） and your hair goes toward it. Same with the smog,” says artist Daan Roosegaarde.

His studio has reached an agreement with the Beijing government to test the technology in one of tile capital’s parks.

With its skies regularly covered by dirty gray smog, Beijing this week announced a series of emergency measures to handle the problem.

Roosegaarde says an indoor model device has already proven it works and is confident that the results — with the help of a team of scientists and engineers — can be replicated(复制的) outside.

“Beijing is quite a good place because the smog in Beijing is quite low. It lies in a valley so there's not so much wind. It's a good environment to explore this kind of thing.”

“We'll be able to purify the air and the challenge is to get the top of the smog so you can see the sun again.”

Roosegaarde acknowledges that projects like this are a way of drawing attention to the problem,rather than a practical solution to Beijing's awful air pollution.

“This is not the real answer for smog. The real answer has to do with clean cars, different industry and different lifestyles.”

However, he hopes the project will make a “fundamental statement” by allowing the city's people to realize the difference between breathing clean and smog-filled air.

1.The device works by _______.

A. helping keep the particles out with more masks

B. pulling pollutants to the ground with an electromagnetic field

C. absorbing hair with a balloon with static

D. creating clean air and let it out into the sky

2. According to the passage，_______ .

A. the Beijing government has agreed to use the technology in Beijing

B. they have proven the results of the device both indoors and outdoors

C. the results of the air-cleaning device can be expectable

D. the Beijing government has never done anything to handle the air pollution

3.What does Roosegaarde really mean by saying “Beijing is quite a good place... ”?

A. The air pollution in Beijing is not quite serious.

B. The weather in Beijing is good for foreigners to live in.

C. Beijing is quite fit for using the air-cleaning device.

D. It is easy to get the top of the smog in Beijing.

4.Roosegaarde appeals to people in Beijing to ________.

A. pay attention to air pollution and solve the problem finally

B. invent more devices to clean the smog in Beijing

C. drive modern cars and try different lifestyles

D. realize how serious the pollution they're facing is

根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

If you are in a crowd, the first and most important thing is to make yourself familiar with your surroundings and mentally notice alternate exits.__ 1.___

Make yourself aware of the type of ground you are standing on, and know that in a crowd of moving people wet or uneven ground can be slippery or hazardous, causing you to fall.

_2.__ When in danger, a few seconds can make all the difference, giving you the possibility of taking advantage of escaping route. Always stay closer to the escape route.

If you find yourself in the middle of a moving crowd, do not fight against the pressure, do not stand still or sit down, because you could easily get trampled.__ 3._____

Take advantage of any space that may open up to move sideways to the crowd movement where the flow is weaker.

Keep your hands up by your chest, like a boxer—it gives you movement and protects your chest.____ 4.___ If you cannot get up because you are injured, get someone to pull you back up. If you have kids, lift them up.

If you fall and cannot get up, keep moving by crawling in the same direction of the crowd, or if that is not possible, then cover your head with your arms and curl up into fetal position.___ 5.__

A. Be aware of the general atmosphere of the event, as panic situations can often be expected.

B. There is always space between people.

C. Do not lie on your stomach or back, as this dangerously exposes your lungs.

D. The worst is to be pushed by the crowd against an immovable object

E. If you fall, get up quickly.

F. No matter where you are, make sure you always know how to get out.

G. Instead, move in the same direction of the crowd.

背诵填空，一空一词

1.As a , I eat; as a man, I read.

2.Similarly, to our minds, we need information and knowledge, which can be through reading.

3.Worrying and sleep can lead to failure in tests or exams, which is a big problem for many students.

4.When we difficulties in life, we notice that some of us choose to their heads in the sand.

5.Life is a between work and relaxation.

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网