题目内容

The giant panda 1. (love) by people all over the world. Chinese scientists 2. (recent) had a chance to study a wild female panda with a newborn baby. She was a very 3. (care) mother. For 25 days, she never left her baby, not even to find something 4. (eat). She would not let any other pandas come near. She licked (舔) the baby to keep it clean. Any smell might attract natural 5.(enemy) that would try to eat the little panda. When it cried, she rocked it and 6.(give) it little soft pats. The mother continued to care for more than two years. By that time, the panda no longer needed 7.(it) mother for food. However, it stayed with her and learned about the ways of the forest. Then, two and a half years 8.(late), the mother 9.(drive) the young panda away. It was time for her 10.(have) a new baby.

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Deep sleep is important. It helps us keep a good memory. But as we grow older, our sleep and memory become_________. How can older adults maintain(保持) deep sleep and strong memories?

A new study shows that one _______way is to listen to a kind of sound called "pink noise". It is the sound of falling rain, blowing wind and so on. It's called pink noise because it sits_________white noise and red noise on the audio spectrum(音频频谱) .

In the study, scientists _______thirteen adults above 60 years old to spend two nights in a sleep lab. Both nights, the participants (参与者) took a memory test and went to bed wearing headphones. The next morning, they were tested again after_________up.

One of the nights,_______was played through the participants' headphones. The other night, however, pink noise was played.

Here are the results. When participants slept with pink noise on, they had_______periods of deep sleep. They also performed three times better on the memory test the next morning than they_______after sleeping in_________.

However, because the study was very small, scientists still need to do more studies to see how ________pink noise is for people's sleep and memory. Anyway, it is amazing, isn't it?

1.A.clearer B.darker C.worse D.better

2.A.easy B.cheap C.crazy D.quiet

3.A.opposite B.without C.between D.beyond

4.A.forced B.invited C.reminded D.advised

5.A.looking B.staying C.making D.waking

6.A.anything B.nothing C.everything D.something

7.A.longer B.shorter C.higher D.lower

8.A.are B.did C.were D.do

9.A.fear B.trouble C.order D.silence

10.A.awful B.grateful C.helpful D.careful

What makes a hero? Most of us might not have the _________ to fight bravely in a war, as we imagine many heroes do. __________, facing the spread of the novel coronavirus, many Chinese have shown their _________, resilience (韧性) and dedication (奉献), just like heroes do.

“A hero is ____________ who, in spite of weakness, doubt or not always knowing the answers, goes ahead and overcomes anyway,” said US actor Christopher Reeve, who was best known for playing Superman. _________ the epidemic ( 传 染 病 ), everyone is afraid of the deadly disease. But out of _________, compassion ( 同 情) or just simply wanting to do their jobs, some choose to hold their ________ down, stand out and fight the virus. They are known as “heroes in harm’s way”.

Medical workers and scientists are always on the frontlines. Since the start of the novel coronavirus outbreak, scientists have been busy doing research and looking for new ___________. Experts Zhong Nanshan, 84, and Li Lanjuan, 73, for example, have worked day and night to develop rapid test kits and treat severe (重症的) patients. Doctor Zhang Wenhong from Shanghai tried to educate the public about the virus in a humorous way. Li Wenliang and some other medical workers even ________ their lives while fighting the epidemic. “China is always well protected by ______________ of them,” former US secretary of state Henry Kissinger once wrote. Indeed, it is medical workers who are risking their lives in the battle.

__________ these well-known names, many heroes remain __________, although they also take risks and play their own parts. Construction ( 建筑) workers race ____________ time to build makeshift ( 临时的) hospitals; volunteers ensure the transportation of supplies; and thousands of media workers keep the public updated with news and ___________ stories.

Chinese writer Lu Xun said, “True heroes dare to look bravely to the gloomy ( 惨淡的) life and are bold ( 勇 敢 的 ) in facing up to the dripping ( 淋漓的 ) blood.” The battle against an epidemic is hard, but _________ there are heroes and heroic deeds, victory will be guaranteed (保证).

1.A.time B.choice C.chance D.challenge

2.A.Besides B.Anyway C.Therefore D.However

3.A.wisdom B.courage C.creativity D.strength

4.A.someone B.anyone C.everyone D.one

5.A.Instead of B.During C.In case of D.As for

6.A.responsibility B.interests C.pressure D.possibility

7.A.tear B.fear C.heart D.weakness

8.A.solutions B.treatments C.instructions D.technologies

9.A.lost B.save C.improve D.progress

10.A.the best B.the most excellent C.the smartest D.the bravest

11.A.With B.Besides C.Without D.In spite of

12.A.unknown B.silent C.ordinary D.quiet

13.A.for B.against C.along with D.together with

14.A.creative B.interesting C.inspiring D.educational

15.A.in case that B.even though C.only if D.as long as

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