题目内容

【题目】第一节:根据首字母,填写一个语法和意义均正确的词(每空一词,每词1

1It is the end of January, and the Spring Festival is a________.

2“I will seek another term as Russia’s president,” he a________ on December 7th, 2017.

3There has been a lot of progress towards providing access to medical t___________ but we still have a lot to do in the fight against the cancer.

4Marx, Engels, Lenin, and Mao Zedong are all important historical f__________.

5Cooperation(合作) between the two countries has w_________ great progress in renewable energy.

【答案】

1approaching

2announced

3treatment

4figures

5witnessed

【解析】本题考查根据首字母拼写单词,要注意理解句意,考虑所填词的词意和词性,最后根据所给信息及语法内容填写正确形式。

1approaching

考查动词。句意:现在是1月底,春节就要到了。表示接近,用进行时表将来,故填approaching

2announced

考查动词。句意:他在2017127日宣布:“我将谋求连任俄罗斯总统。表示宣布,根据时间用过去时,故填announced

3treatment

考查名词。句意:在提供医疗服务方面已经取得了很多进展,但在对抗癌症方面我们还有很多工作要做。医疗medical treatment,故填treatment

4figures

考查名词。句意:马克思、恩格斯、列宁、毛泽东都是重要的历史人物。表示人物,此处用名词复数,故填figures

5witnessed

考查动词。句意:两国之间的合作目睹了可再生能源的巨大进步。表示目睹,此处是现在完成时,故填过去分词witnessed

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【题目】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。
Every animal sleeps,but the reason for this has remained foggy. When lab rats are not allowed to sleep, they die within a month.
One idea is that sleep helps us strengthen new memories. We know that, while awake,fresh memories are recorded by reinforcing (加强)connections between brain cells, but the memory processes that take place while we sleep have been unclear.
Support is growing for a theory that sleep evolved so that connections between neurons(神经元)in the brain can be weakened overnight, making room for fresh memories to form the next day.
Now we have the most direct evidence yet that he is right. The synapses in the mice taken at the end of a period of sleep were 18 per cent smaller than those taken before sleep,showing that the connections between neurons weaken while sleeping.
If Tononi`s theory is right, it would explain why, when we miss a night`s, we find it harder the next day to concentrate and learn new information —our brains may have smaller room for new experiences.
Their research also suggests how we may build lasting memories over time even though the synapscs become thinner. The team discovered that some synapses seem to be protected and stayed the same size. “You keep what matters,” Tononi says.

A. We should also try to sleep well the night before.
B. Ti's as if the brain is preserving its most important memories.
C. Similarly, when people go for a few days without sleeping, they get sick.
D. The processes take place to stop our brains becoming loaded with memories.
E. That's why students do better in tests if they get a chance to sleep after learning.
F. “Sleep is the price we pay for learning,” says Giulio Tononi, who developed the idea.
G. Tononi's team measured the size of these connections, or synapses, in the brains of 12 mice.

【题目】阅读理解
C
After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves.
Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States, but they were gradually displaced by human development. By the 1920s, wolves had practically disappeared from the Yellowstone area. They went farther north into the deep forests of Canada, where there were fewer humans around.
The disappearance of the wolves had many unexpected results. Deer and elk populations — major food sources (来源) for the wolf – grew rapidly. These animals consumed large amounts of vegetation (植被), which reduced plant diversity in the park. In the absence of wolves, coyote populations also grew quickly. The coyotes killed a large percentage of the park' s red foxes, and completely drove away the park' s beavers.
As early as 1966,biologists asked the government to consider reintroducing wolves to Yellowstone Park.They hoped that wolves would be able to control the elk and coyote problems.Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets.
The government spent nearly 30 years coming up with a plan to reintroduce the wolves. The U.S.Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone. Today, the debate continues over how well the gray wolf is fitting in at Yellowstone. Elk,deer,and coyote populations are down,while beavers and red foxes have made a comeback.The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.
(1)What is the text mainly about?
A.Wildlife research in the United States.
B.Plant diversity in the Yellowstone area.
C.The conflict between farmers and gray wolves.
D.The reintroduction of wolves to Yellowstone Park.
(2)What does the underlined word “displaced” in paragraph 2 mean?
A.Tested.
B.Separated.
C.Forced out.
D.Tracked down.
(3)What did the disappearance of gray wolves bring about?
A.Damage to local ecology.
B.A decline in the park's income.
C.Preservation of vegetation.
D.An increase in the variety of animals.
(4)What is the author's attitude towards the Yellowstone wolf project?
A.Doubtful.
B.Positive.
C.Disapproving.
D.Uncaring.

【题目】阅读下列短文:根据短文做出正确的回答。
Walking will be banned on escalators as part of a trail designed to reduce congestion(拥堵) at some of the country's busiest stations.
In the first move of its kind, all travelers will be forced to stand on both sides of escalators on the London Underground as part of a plan to increase capacity(容量) at the height of the rush hour.
A six-month trial will be introduced at Holborn station from mid-April, eliminating the rule of standing on the right and walking on the left. The move, imitating a similar structure in Far eastern cities such as Hong Kong, is designed to increase the number of people using long escalators at the busiest times. It could be expanded across the Tube network in coming years.
According to London Underground, only 40percent of travelers walk the full length of long escalators, leaving the majority at the bottom as they wait to get on to the “standing “side.
A three-week trial at Holborn last year found that the number of people using escalators at any time of could be raised by almost a third. Peter McNaught, operations director at London Underground, said: “It may not seem right that you can go quicker by standing still, but our experiments at Holborn have proved that it can be true. This new six-month trial will help us find out if we can influence customers to stand on both sides in the long term.”
Holborn has one of the longest sets of escalators on the Underground network at 23.4high. Tube bosses claim that capacity was limited because so few people wanted to walk up—meaning only one side was used at all times. Research has shown that it is more effective use of escalators over 18.5 to ban walking.
The previous trial found that escalators at the station normally carried 2,500people between 8:30 am and 9:30 am on a typical day, rising to 3,250 during the researching period.
In the new trial, which will be launched from April 18, one of three “up” escalators will be standing only, with a second banning walking at peak times. A third will remain a mix of walking and standing.
(Note: Answering the questions or complete the statements in NO MORE THAN TEN WORDS.)
(1)What is theexisting problem with standing on the right and walking on the left?
(2)What did last year's three-week trial at Holborn station prove?
(3)The researchsuggests that walking should be forbidden on escalators that are at least in height.
(4)In the new trail,in addition to one escalator banning walking in rush hours, the other "up" escalators willbe used for.

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