阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Antarct...

Where are the bees?

Bees are essential to the production of food we eat. Bees make honey, but they also pollinate (授粉) large areas of ________, such as strawberries, apples and onions. About a. third of the food we eat is a(n) __________ of pollination of the bees. _______, bees have been disappearing at a(n) f _______ rate.

In 2006, beekeepers started reporting about something called Colony Collapse Disaster (CCD). The main sign of CCD is the __________ of adult honey bees from a hive. In October of 2006, some beekeepers reported that they had lost between 30 and 90 percent of their hives.

There were many ________ for the disappearance of the bees. But the most convincing one has to _________ pesticides and lifestyles of bees today. Nowadays, beekeepers get most of their income not from, __________ honey but from renting bees to pollinate plants. This means that the life of the typical bee now __________ travelling all around the country to pollinate crops as the __________ change. That means a lot of traveling on trucks, which is very ________ to bees. It is __________ for up to 30% of the hive to die during __________ due to stress. In addition, bees that spend most of their time locked up on trucks are not __________ what they usually live on. __________, they live on a sweet liquid from corn, usually polluted with pesticides.

The __________ reason for the disappearance of bees is not sure, but losing bees is very_______ to the economy. The bee pollination services are _______ over $ 8 billion a year. With no bees, pollination will have to be done ________, which would have, effects on the quality, of food and increase food prices. We hear a lot about big environmental disasters almost every day. But one of the biggest __________ be the loss of that tiny flying insect.

1.A.flowers B.trees C.crops D.grass

2.A.protection. B.result C.power D.impact

3.A.Eventually B.Accidentally C.Interestingly D.Unfortunately

4.A.alarming B.moderate C.amusing D.reasonable

5.A.escape B.loss C.boom D.growth

6.A.chances B.theories C.adjustments D.excuses

7.A.go with B.agree with C.do with D.deal with

8.A.producing B.buying C.giving away D.processing

9.A.consists of B.accounts for C.lies in D.counts on

10.A.beekeepers B.behaviors C.prices D.seasons

11.A.beneficial B.acceptable C.stressful D.familiar

12.A.avoidable B.temporary C.not unusual D.rare

13.A.flight B.circle C.stay D.transport

14.A.interested in B.exposed to C.accustomed to D.hunting for

15.A.Or else B.However C.Therefore D.Instead

16.A.exact B.extra C.complex D.original

17.A.exciting B.great C.contrary D.costly

18.A.spending B.paying C.worth D.valuable

19.A.by chance B.by hand C.in time D.in turn

20.A.may well B.need C.must D.can’t

    People often say that “failure is the mother of success”. 1. As a result, Manalo, a professor of educational psychology in Japan says, “We know we shouldn’t give up when we fail—but in reality, we do.”

Manalo and Manu, a professor of learning sciences in Swiss, put together a special issue (专利) last December on benefiting from failure. The issue’s 15 studies provide teachers and educational researchers with a guide for achieving success. 2. Another confirmed that advice on failures is most constructive when the receiver is prepared to experience unpleasant feelings.

Manalo and his co-authors also focused on overcoming one everyday form of failure: not completing a task. They asked 131 students to write an article about their school experiences. Half of the students received instructions for their writing, and half were left to their own. 3. Afterward the researchers found that those in the instructed group were more willing to complete their articles, compared with those who lacked guidance—even if the latter were closer to being done. 4.

5. Stephanie Couch, the director of the Lemelson-MIT Program, holds the opinion. Couch, whose work was also featured in the special issue, says that we should tell them to think of failure as part of a process toward success.

A.However, all were stopped before finishing.

B.The saying shows the importance of success.

C.Teaching students not to fear failure makes goals achieved more easily.

D.One study reported that the sooner students fail, the sooner they can move forward.

E.Though having some truth to it, the saying does not tell us how to turn a loss into a win.

F.They believed that learning how to fail can help people avoid becoming lasting failures.

G.Knowing how to finish, in other words, was more important than being close to finishing.

    Why do people undertake volunteer work and what keeps their interest in the work?

Let’s begin with the question of why people volunteer. Researchers have identified several factors that motivate people to get involved. For example, people volunteer to express personal values related to unselfishness, to expand their range of experiences, and to strengthen social relationships. If volunteer positions do not meet these needs, people may not wish to participate. To select volunteers, you may need to understand the motivations of the people you wish to attract.

People also volunteer because they are required to do so. To increase levels of community service, some schools have launched compulsory volunteer programs. Unfortunately, these programs can shift people’s wish of participation from an internal factor to an external factor. When that happens, people become less likely to volunteer in the future. People must be sensitive to this possibility when they make volunteer activities a must.

Once people begin to volunteer, what leads them-to remain in their positions over time? To answer this question, researchers have conducted follow-up studies in which they track volunteers over time. For instance, one study followed 238 volunteers in Florida over a year. One of the most important factors that influenced their satisfaction as volunteers was the amount of suffering they experienced in their volunteer positions. Although this result may not surprise you, it leads to important practical advice. The researchers note that attention should be given to “training methods that would prepare volunteers for troublesome situations or provide them with strategies for coping with the problem they do experience”.

Another study of 302 volunteers at hospitals in Chicago focused on individual differences in the degree to which people view “volunteer” as an important social role. It was assumed that those people for whom the role of volunteer was most part of their personal identity would also be most likely to continue volunteer work. Participants indicated the degree to which the social role mattered by responding to statements such as “Volunteering in hospital is an important part of who I am.” Consistent with the researchers’ expectations, they found a positive correlation (正相关) between the strength of role identity and the length of time people continued to volunteer. These results, once again, result in concrete advice: “Once an individual begins volunteering, continued efforts might focus on developing a volunteer role identity... Items like T-shirts that allow volunteers to be recognized publicly for their contributions can help strengthen role identity.”

1.People volunteer mainly out of ________.

A.school requirements B.social expectations

C.financial rewards D.internal needs

2.What does the author want to tell us in the third paragraph?

A.People who participate in volunteer programs in schools are sensitive.

B.External factors are more important than internal factors in volunteer work.

C.Being required to be volunteers may make people reluctant to do volunteer work.

D.Volunteer programs in school can encourage people to do more volunteer work in future.

3.What can we learn from the Florida study?

A.Follow-up studies should last-for one year.

B.Volunteers should get mentally prepared.

C.Strategy training is a must in research.

D.Volunteers are provided with concrete advice.

4.What is most likely to motivate volunteers to continue their work?

A.Individual differences in role identity.

B.Practical advice from researchers.

C.Role identity as a volunteer.

D.Publicly identifiable volunteer T-shirts.

    One after another, telecommunications giants (通信巨头) have announced their latest fifth generation (5G) products. They have also claimed that 5G technology would be used on a massive scale by 2020. Yet, when reporting about 5G, many domestic media outlets have described it as a “much faster” technology than 4G without mentioning any of its other advantages. As a result, the common public view about 5G is that they could “download a high-density movie within one second”. Beyond that, most people know nothing about 5G.

Actually, 5G technology has many more advantages than 4G apart from speed. According to the criteria of 3GPP, an international standardization organization, 5G technology can be used for at least three purposes—for connecting everything, reliability of connections, and eliminating delays.

“Connecting everything” is an appropriate slogan for 5G technology, without which the Internet of things would be impossible. 5G would enable one server to connect to multiple terminals (终端) and thus establish high-speed coordination among them, and help the chips inside the terminals to timely react to meet people’s needs. Take for example, autonomous vehicles, which are mature technology products. Self-driving cars combine a variety of sensors, such as radar, computer vision, and GPS to identify navigation paths and obstacles. 5G technology will link all the elements of a transportation system, such as traffic lights, cameras and, of course, cars to establish perfect coordination so they can avoid obstacles and move on navigation paths, which will help strengthen self-driving technology.

Reliability of connections is another essential characteristic of 5G technology, whose use can be extended to other fields where high safety standards are required. For instance, in certain surgeries, surgeons insert nano-robots inside a patient’s body and have to maintain constant control over the robots to ensure they perform their functions and do not cause any harm to the patient. This is an technology can be of great help, as it can establish reliable and continuous connections between the monitor and the nano-robots.

1.What will the author most probably discuss in the paragraph that follow?

A.Eliminating delays. B.5G network capacity.

C.Disadvantages of 5G. D.Building 5G base stations.

2.Which can also serve as an example of “connecting everything”?

A.Improvement of smart phone signals.

B.Decrease in telecommunication cost.

C.High speed in-playing computer games.

D.Online tests for all members at the same time.

3.Why can 5G be used in fields with high safety standards?

A.It can attract most eyeball on a massive scale.

B.It can provide dependable and constant service.

C.It offers massive machine type of communication.

D.It employs 4G base stations and occupy less space.

4.What would be the best title for the passage?

A.5G Technology: More Than about High Speed

B.5G Technology Will Shape the Future of Connectivity

C.Telecom Giants Work Together to Better 5G Technology

D.Advantages and Disadvantages of 5G Technology and Products

    On March 25, 2010, Kate and David Ogg heard the words every parent fears: Their newborn son wasn’t going to make it. Their twins—a girl and a boy—were born two minutes apart and 14 weeks premature, weighing just over two pounds each. Doctors had tried to save the boy for 20 minutes but saw no improvement. His heartbeat was nearly gone, and he’d stopped breathing. The baby had just moments to live.

“I saw him gasp (喘气), but the doctor said it was no use,” Kate said. “I know it sounds stupid, but if he was still gasping, that was a sign of life. I wasn’t going to give up easily.”

Still, the Sydney couple knew this was likely goodbye. In an effort to treasure her last minutes with the tiny boy, Kate asked to hold him.

“I wanted to meet him, and for him to know us,” Kate told Today. “We’d resigned ourselves to the fact that we were going to lose him, and we were just trying to make the most of those last, precious moments.”

Kate unwrapped the boy, whom the couple had already named Jamie, from his hospital blanket and ordered David to take his shirt off and join them in bed. The first-time parents wanted their son to be as warm as possible and hoped the skin-to- skin contact would improve his condition. They also talked to him.

"We were trying to attract him to stay.” Kate said. “We explained his name and that he had a twin that he had to look out for and how hard we had tried to have him.”

Then something miraculous happened. Jamie gasped again—and then he started breathing. Finally, he reached for his father’s finger. The couple’s lost boy had made it.

1.What do we know about the newborn boy mentioned in Paragraph 1?

A.He weighed only two pounds.

B.He almost died.

C.He was two minutes older than his twin sister.

D.He had no heartbeat. ‘

2.Why did the parents make the skin-to-skin contact with the boy?

A.To keep in touch with their son.

B.To follow the doctors’ requirements.

C.To communicate with their son.

D.To better their son’s condition.

3.What does the underlined word “miraculous” in the last paragraph mean?

A.touching B.unexpected

C.ridiculous D.fortunate

4.What is the best title for the text?

A.A Lucky Boy. B.Endless Love

C.Life-giving Touch D.An Unforgettable Experience