题目内容

【题目】Recently a survey _______ prices of the same goods in two different supermarkets has caused heated debate among citizens.

A.comparedB.comparingC.comparesD.being compared

【答案】B

【解析】

考查非谓语动词。句意:最近,一项对两家不同超市的同种商品价格进行比较的调查在市民中引起了激烈的争论。分析句子结构可知,该句的主语是a survey,谓语动词是has caused,宾语是heated debate。可见,句子结构是完整的,因此我们要选择的只能是非谓语动词形式。surveycompare之间存在主动关系,因此用现在分词短语作后置定语。故选B

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【题目】Are anger problems should also be recognized as an illness like depression and anxiety? Anger is largely viewed as a secondary emotion — one caused by other emotions. People are thought to be angry because they are sad, anxious or stressed. 1 Today, though, a growing number of mental health experts think that anger is a serious problem that needs its own treatment.

To tell the difference between “normal” anger and “anger problem” is difficult. After all, everyone gets really mad from time to time. Experts point out a few ways.

Disordered anger, as it is sometimes called, tends to be of greater intensity (强度). 2 An example: While most people would get upset if a driver cut them off, someone with disordered anger might try to chase down the car and force it off the road.

And in cases of disordered anger, the person gets angry more frequently and his/her anger lasts longer.3 But people with anger problems often stay angry for days, weeks or even years; their feelings of anger don’t disappear over time.

4 Disordered anger often damages people’s lives. “It interferes (干扰) with people’s relationships and their jobs,” says Raymond Chip Tafrate, a US psychologist. “Even their health is affected.”

Anger clearly increases the risk of certain health problems, as many studies have shown. When people are angry, their hearts beat faster and their blood pressure goes up. 5

Experts suggest that people with an anger problem take anger-management programs. The programs teach people to control their responses to stressful situations through the use of relaxation techniques. The programs sometimes also include life-skills training to help bring down stress and remove angry feelings.

A.Anger takes away people’s joy in life.

B.Consequencesare also important to consider:

C.The anger buried inside him rises to the surface.

D.For most people, angry feelings disappear quickly.

E.Over time, these changes will have bad effects on the body.

F.In the past, many doctors didn’t accept the idea that anger could be a problem all on its own.

G.It takes very little to set off a person with an anger problem, and their responses are very strong.

【题目】 If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation--conversion of liquid water to water vapor. In this manner, the salinity is increased, since the salts stay behind. If this is carried to the extreme, of course, white crystals of salt would be left behind.

The opposite of evaporation is precipitation(降水), such as rain, by which water is added to the ocean. Here the ocean is being diluted(稀释) so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by evaporation, or decreased by the addition of fresh water by precipitation or runoff.

Normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.

A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.

In the Weddell Sea, off Antarctica, the densest water in the oceans is formed as a result of this freezing process, which increases the salinity of cold water. This heavy water sinks and is found in the deeper portions of the oceans of the world.

1What is the best title for the passage?

A.Typical Oceans and Their Respective Features

B.The Causes of the Changes in Salinity of Ocean Water

C.Different Oceans Have Different Salinity

D.The Precipitation and Evaporation of Oceans

2Which of the following processes will increase salinity of ocean waters?

A.EvaporationB.Precipitation

C.MeltingD.Dilution

3According to this passage, the sea ________ is likely to have the lowest salinity.

A.in tropical areasB.off Antarctica

C.of high rainfallD.with abundant

4The Weddell Sea _______.

A.is an example of increased salinity in freezing sea water

B.is much larger in area than the Arctic oceans

C.has a much lower salinity now than ever

D.has the denser water in its upper parts

【题目】 Yellowstone National Park is the flagship of the National Park Service and a favorite to millions of visitors each year. The park is a major destination for all members of the family. By driving the grand loop road, visitors can view the park from the comfort of their vehicle and also take a rest at one of the many roadside picnic areas.

How much is the entrance fee?

$25 - Private, noncommercial vehicle;

$20 - Motorcycle or snowmobile (winter);

$12 - Visitors 16 and older entering by foot, bike, ski, etc.

This fee provides the visitor with a 7-day entrance permit for both Yellowstone and Grand Teton National Parks.

A $50 park annual pass provides entrance for a single private non-commercial vehicle at Yellowstone and Grand Teton National Parks. The $10 Interagency Senior Pass (62 and older) is a lifetime pass available to U.S. citizens or permanent residents.

Where can you stay?

Inside Yellowstone, you can choose to stay in modern or historic hotels and cabins inside the park like the Old Faithful Inn, the world’s largest log structure. For those who want to be a little closer to nature, there are 12 campgrounds with a range of services from primitive pit toilets to shower and laundry facilities. There’ s also RV camping with and without dumping stations.

Staying outside the park gives you unique Old West experiences but still keeps you close to park attractions.

If you’re taking a road trip to Yellowstone, you’ll want to check out our Hotels and Cabins On The Road section.

1The entrance fees listed on the web page don’t apply to _______.

A.temporary residents in the USA

B.vehicles involving business activities

C.visitors out of a certain age range

D.private motorcycles and snowmobiles

2What are you likely to acquire in the Old Faithful Inn?

A.Unique old west experiences.

B.Primitive pit toilets and shower.

C.Knowledge of origin of the park.

D.RV camping with dumping sites.

3Where does the passage probably come from?

A.A magazine.B.A textbook.

C.A notice.D.A travel guide.

【题目】 Most of us have looked up at the stars that fill the night sky and wondered whether we’re alone in the universe. Indeed, the question of whether there’ s life out there has been something humankind ’s been asking itself for countless years. But thanks to China’s Five-hundred-meter Aperture Spherical Telescope (FAST), the answer to this question may come a lot sooner than we expected.

The telescope has a huge round reflector, which measures 500 meters across and has a perimeter(周长)of 1.6 kilometers. Because of its great size, it would have been both difficult and inefficient to get FAST to move like a regular telescope. Instead, FAST’s designers came up with a great solution: its surface is made up of 4450 panels which can be individually adjusted. This clever design feature allows scientists to detect radio signals from any angle with a great degree of accuracy. “Panels can change their positions through connected wires and parallel (关联的) robots. We can control their position with an accuracy of 1 mm,” Zheng Yuanpeng, chief engineer of the telescope’s panel project, told Xinhua News Agency.

FAST’s engineers also had the task of finding a suitable location. As any interference would affect its ability to detect distant radio waves, it needed to be built in a remote area. Luckily, the perfect spot was found in the beautiful mountains of Guizhou Province. “There are three hills about 500 meters away from one another, creating a valley that is perfect to support the telescope," Sun Caihong, chief engineer of FAST’ s construction, told Xinhua.

And although it wasn’t yet fully operated, FAST had already made great discoveries by October 2017. Since 1967, only around 2000 pulsars (脉冲星) have been discovered, yet FAST had detected six more by October 2017. Once FAST is fully up and running, we may finally have the answer to one of the biggest questions in history.

1What is the purpose of mentioning the question in Paragraph 1?

A.To introduce the new giant telescope.

B.To explain why there is life in universe.

C.To remind readers to think about the life in space.

D.To emphasize the question that should be answered.

2What can we know from Paragraph 2?

A.The telescope is made up of many panels.

B.The area of FAST is about 800 square kilometers.

C.The engineer can handle FAST’s position accurately.

D.The individual panel helps scientists catch radio signals.

3Why was FAST built in Guizhou?

A.Because Guizhou is a remote province.

B.Because Guizhou has an ideal valley.

C.Because Guizhou has beautiful mountains.

D.Because Guizhou has the ability to build it.

4What does the last paragraph mainly talk about?

A.FAST’s timeline.B.FAST’s future.

C.FAST’s operation.D.FAST’s discoveries.

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