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随时随地学习
1、________ has been discovered by scientists, many scientific studies are difficult or impossible to copy, including the famous Stanford Prison Experiment.
A．Which
B．It
C．As
D．What
2、Mary and I see each other ________，but not as often as we used to.
A. sooner or later B. every now and then
C. in the end D. more or less
3、Remember this,_______ careful you are, _______mistakes you will make.
A．the more; the more
B．the more; the fewer
C．the more; the less
D．the less; the fewer
4、 I am in ________ charge of the class which was in ________charge of my wife.
A．/; /
B．/; the
C．the; /
D．the; the
5、The only approach ________ is not simply to seal the city.
A．to solve
B．of solving
C．to solving
D．for solving
6、The Xi'an City Wall________ originally to protect the city in the Tang dynasty and has now been completely restored（修复）.
A．was built
B．is built
C．has built
D．has been built
7、 Immediately, the two fall in love with each other. However, Zhu Yintai’s parents demand she ___ another man.
A. be married with B. marries C. marry D. marry to
8、The bus hit against a tree in the fog and ______to the deep valley，with ten passengers killed and twenty wounded.
A．down did it roll
B．down rolled it
C．it down rolled
D．down it rolled
9、My printer is five years old, so I'd like to ______ it and purchase a new one online.
A.delete B.retire C.refresh D.declare
10、It is outer space might provide us with new energy sources.
A．where B．which C．what D．that
11、It was the third time that she _____ the Great Wall.
A.went to B.had been to C.visited D.visit
12、—Is the new job a real challenge for him?
—Well, ______ difficulties he meets, I believe he will never lose heart.
A．whenever
B．however
C．whichever
D．whatever
13、 Some people believe _______ has happened before or is happening now will repeat itself in the future.
A. whatever B. whenever.
C. wherever D. however
14、Gone are the hardest days ______ the novel coronavirus pneumonia (NPC) spread nationwide.
A.which B.that C.when D.whose
15、Public schools in the United States have to be ____about religion, even though they close for holidays like Christmas.
A.negative B.neutral C.pessimistic D.passive
16、—I heard they went skiing in the mountains last winter.
—It true because there was little snow there.
A.may be not B.won’t be C.couldn’t be D.mustn’t be
17、In our class, when the bell rang and the teacher closed his book, it was a ______ for everyone to stand up.
A. signal B. chance
C. mark D. measure
18、Unsatisfied with the payment , he took the job just to get some work experience .
A．as was he
B．as he was
C．he was as
D．was he as
19、All his attention ________ on the movie, so he didn’t even notice the boss enter the room.
A. has been fixed B. fixing
C. was fixed D. fixed
20、A total number of 172 people are now in hospital for treatment, of them 24 seriously ________.
A.being injured B.injured C.having injured D.to be injured
21、 The first thing you should know about Nightfood, a new “sleep-friendly” ice cream，is that it's a genius idea. There are certainly still some doubts whether it actually works. But many people have trouble sleeping, and many people love eating ice cream，and the possibility of cookies-and-cream-flavored Ambien (一种助眠药), even though that's not exactly how the product functions，is going to be irresistible to people with sleep problems everywhere.
“Part of me is like，I’m jealous I’m not part of this marketing programme,” said Raj Dasgupta，assistant professor of clinical medicine specializing in sleep at Keck School of Medicine at the University of Southern California. “They knew exactly how to appeal to customers.”
You could eat Nightfood any time of day without feeling sleepy，but the product is designed for sleep because surveys have shown one of the most common times people tuck into a pint of ice cream is at night, probably while watching Netflix. But can junk food really solve your sleep problems? Probably not, Dasgupta said.
The best way to improve your sleep is to practice good sleep hygiene: have a set bedtime and wake time every day，avoid caffeine and screens late at night, and, uh, do not eat within two hours of your bedtime. But our willpower fails us in the face of a “Russian Doll” binge with a pint of mint chocolate chip.
“They know no one is going to listen to this advice，so，might as well cater to (迎合) them,” Dasgupta said. Sugary snacks “are the no-no foods you don’t want someone to eat before bed. If they’re going to eat it anyway，I’d rather they grab the nutritious one rather than the Twinkie or the cupcake.”
And here's the thing： It actually tastes really good. Unlike other “functional” ice creams that boast of higher protein and lower sugar and fat, Nightfood uses real sugar — no alternative .sweeteners. There is milk and cream in it. It has fewer calories than your typical pint，but you would hardly know it from the texture or taste.
Nightfood is not the only sleep-friendly product on the market. There are also several carbonated sleep drinks, including Som and Neuro Sleep. They might help a bit, but Dasgupta cautions that sleep-promoting foods are not a cure-all.
“You’re not just going to start eating this food and get great sleep. There's other things that go into it, too,” like your overall health, stress level and the amount of time you spend aimlessly scrolling through Twitter in bed.
【1】What does Raj Dasgupta mean by saying “Part of me is like，I’m jealous I’m not part of this marketing programme”？
A. The idea of the new “sleep-friendly” ice cream is wonderful.
B. He wanted to be part of a marketing programme.
C. He envied the profit that workers in the ice cream marketing made.
D. He wanted to work as an advertiser instead of a doctor.
【2】What can we know from this passage?
A. People often turned to ice cream before bed.
B. Nightfood doesn’t taste as good as other ice creams.
C. Nightfood uses only a little alternative sweeter.
D. Nightfood can keep you awake all the time.
【3】What's NOT a good way to improve people's sleep，according to the passage?
A. To have a set bedtime and wake time every day,
B. To avoid caffeine and screens late at night
C. Not to eat within two hours of bedtime.
D. To eat a NightPood before going to bed. .
【4】What’s the best title of this passage?
A. Nightfood, a delicious ice cream
B. Nightfood, a cure for insomniac
C. Nightfood, a replacement for sugary snacks
D. Nightfood, a healthy likely sleep-helper
22、 A little over a year ago on Jan 3, 2019, China’s Chang’e 4 spacecraft did something that had never been done before – landing on the moon’s far side. Ever since then, the rover it carried – Yutu 2 – has been sending back pictures of the lesser-seen side of our neighboring satellite.
Now, the rover has shifted its sight from horizontal to vertical. In a paper published in the journal Science Advances on Feb 26, Chinese scientists revealed the underground structure of the Von Karman crater – the area where Yutu 2 touched down. Using ground-penetrating radar, Yutu 2 was able to detect three distinct layers in the 40 meters beneath the floor of the crater, which Science News compares to “layers of a cake”.
The top 12-meter layer is made up of fine dust and soil—a bit like the frosting on a cake. The second layer, stretching another 12 meters below, contains a great number of large stones that are like “cherries in a fruitcake”, wrote Science News. And the next layer—which runs from 24 meters down to 40 meters – is a mixture of both large and fine materials, just like the whole-wheat bread base of a cake.
This “layered cake” provides us with a glimpse into moon’s four billion-year history – and it was likely to be a violent one.
According to the study’s leader, Su Yan, based at the Chinese Academy of Sciences, the rocks in the layers are possibly leftover debris from past impacts, suggesting asteroid collisions. The finer soil is the sign of smaller meteorite collisions, breaking down the rocks into smaller pieces, which were then gradually degraded by the radiation from the sun.
But quite unlike a cake, the moon floor doesn’t just stop at the third layer. Instead, it stretches miles deeper. The reason that Yutu 2’s data stopped at 40 meters was that it reached its maximum range. It may seem like a pity that it couldn’t go any farther for now, but the truth is that the technology has improved a lot since it was first used in 1972 by America’s Apollo 17 orbiter to map the structure of the moon.
“The previous measurements indicated different layers, but they don’t seem to have come up with the level of detail about the physical properties of the subsurface that Chang’e 4 is producing,” Gretchen Benedix, a planetary scientist at Curtin University, Australia, told ABC News.
Forty meters down is just the beginning of our research into the moon’s far side. With the aid of new technology, who knows what we could discover if we delved even deeper?
【1】What does Paragraph 2 suggest?
A.The rover detected the atmosphere of the moon.
B.The rover had left the far side of the moon.
C.The rover discovered the Von Karman crater with its radar.
D.The rover detected the underground structure of a crater.
【2】What does the second layer of the crater contain?
A.Fine dust. B.Soil.
C.Large stones. D.A mixture of both large and fine materials.
【3】What does Paragraph 5 tell us?
A.How important the three layers are to the crater.
B.Why the moon probably had a violent history.
C.How asteroids changed the moon’s surface.
D.Why meteorite collisions happen frequently.
【4】What does Gretchen Benedix probably think of the measurements of Chang’e-4?
A.They lack details. B.They are beyond expectations.
C.They repeated the previous study. D.They are praiseworthy.
23、Here’s a new warning from health experts: Sitting is deadly.
Scientists are increasingly warning that sitting for long periods --- even if you also exercise regularly --- could be bad for your health. And it doesn’t matter where the sitting takes place. Several studies suggest people who spend most of their days sitting are more likely to be fat, have a heart attack or even die.
In an article published this week in the British Journal of Sports Medicine, Elin Ekblom-Bak of the Swedish School of Sport and Health Sciences suggested that authorities rethink how they define physical activity to stress the dangers of sitting.
While health officials have recommended minimum amounts of physical activity, they haven’t suggested people try to limit how much time they spend in a seated position.
“After four hours of sitting, the body starts to send harmful signals,” said Ekblom-Bak. She explained that genes regulating the amount of glucose (葡萄糖) and fat in the body start to shut down.
Even for people who exercise, spending long periods of time sitting at a desk is still harmful. Tim Armstrong, a physical activity expert at the World Health Organization, said people who exercise every day --- but still spend a lot of time sitting --- might get more benefit if that exercise was spread across the day, rather than in a single bout (一回).
Still, in a study published in 2015 that tracked more than 17,000 Canadians for about a dozen years, researchers found people who sat more had a higher death risk, whether or not they exercised.
“We don’t have enough evidence yet to say how much sitting is bad,” said Peter Katzmarzyk of the Pennington Biomedical Research Center in Baton Rouge, who led the Canadian study. “But it seems the more you can get up and interrupt this sedentary (久坐的) behavior, the better.”
Experts said more research is needed to figure out just how much sitting is dangerous, and what might be possible to offset those effects.
“People should keep exercising because that has a lot of benefits,” Ekblom-Bak said. “But when they’re in the office, they should try to interrupt sitting as often as possible,” she said.
【1】What is the best title for the text?
A．Not Sitting Too Much While Working.
B．How to Avoid Sitting Too Much.
C．Sitting Too Much Could Be Deadly.
D．More and More People Sit Too Much.
【2】According to the research, ________.
A．the more time you spend in exercising in a single bout, the healthier you will be
B．those who often sit too much are sure to grow fat or suffer from a heart attack
C．regular exercise is effective in getting rid of the side effects of sitting too much
D．you had better not sit for more than four hours in a single bout
【3】How does the danger of sitting too much affect the human body?
A．It results in a higher death risk.
B．It increases glucose and fat in the body.
C．It makes a person unable to exercise long enough in a day.
D．It causes the genes to fail to balance the glucose and fat in the body.
【4】The underlined word “offset” in Paragraph 9 most probably means ________.
A．improve
B．balance
C．ignore
D．achieve
【5】In the opinion of Ekblom-Bak, you’d better have a rest in the office by ________.
A．having a walk around your office
B．sending your friends e-mails
C．chatting online or playing computer games
D．listening to music with your head on the desk
24、When a storm is coming, most people leave the area as quickly as possible and head for safety. But there are a few people who will get into their cars and go straight for the center of the storm. These people are willing to risk being killed by floods or 100-kilometer-an-hour winds for the excitement of watching the storm close up.
“Storm chasing” is becoming an increasingly popular hobby, especially in the Midwest of the United States, where there are frequent storms between March and July. A storm chaser begins the day by checking the Internet for the latest weather reports, and then drives up to 1,000 kilometers to where the storm will be and waits for it to develop.
Although anyone can do it, storm chasing is extremely dangerous. The power of a big storm can throw a cow into the air or destroy a whole house in seconds. Storm chasers are also often hurt in accidents caused by driving in a heavy rain. If you are a beginner, it is much safer to join a group for storm-chasing vacations during the storm season.
Even then, storm chasing is not all adventure and excitement. “Storm chasing is 95% driving,”says Daniel Lynch, who spends most of his summer storm-chasing. “Sometimes you can sit around for hours waiting for something to happen, and all you get is blue sky and a few light showers.”
However, for storm chasers, it is all worth it.“When you get close to a storm, it is the most exciting sight you will ever see in your life,” says Jasper Morley.“Every storm is an example of the power of nature. It is the greatest show on Earth.”
【1】The underlined word “chasing” in paragraph 2 probably means _____.
A．running after
B．enjoying
C．experiencing
D．showing up
【2】For storm chasing, the first thing storm chasers do is to _____.
A．head straight for the center of the storm
B．collect information about a coming storm
C．wait patiently for the storm to develop
D．get into the car for safety
【3】Beginners of storm chasing are advised _____.
A．not to drive in a heavy rain
B．not to get too close to a storm
C．to join in a group of storm chasers
D．to spend more time on it in summer
【4】What can we learn from the passage?
A．Storm chasing is only fit for young people.
B．Many storm chasers get killed in the storms.
C．Storm chasing is becoming popular around the world.
D．Sometimes storm chasers get nothing but disappointment.
25、An elephant named Bozo was huge but gentle. However, one day Bozo _______. He almost attacked the man who cleaned his cage, and _______ children at the circus (马戏团). So his owner decided to _______ the giant.
To earn money, the owner held a cruel _______. He sold tickets to _______ Bozo's execution (行刑). On the day, three men rose to aim their guns at the animal. Just before the_______was given to shoot, a man stepped out and said to the elephant's owner, “Sir, this is _______. Bozo isn't a bad elephant.”
“But he is,” the man argued. “We must kill him _______ he kills someone.”
“Sir, give me two minutes alone in his cage，” the visitor begged, “and I'll _______ to you that he isn't a bad elephant.”
After some moments of discussion, the owner ________ agreed to allow the man in. Before the elephant rushed towards him, the man began to ________ him. Bozo seemed to immediately ________down upon hearing the man's words. After a while, the animal ________lifted the man up and carried him around his cage before carefully putting him back at the door. As the cage door closed ________him, the man said to Bozo's owner, “You see, he's a good elephant. His ________ is that he's an Indian elephant and understands one ________.” He explained Bozo needed someone who could speak his language. “Sir, I ________ that you find someone to come in sometimes and talk to the elephant. If you ________, you'll have no problems.”
People also become discouraged and angry when they aren't ________, but great relationships are formed by people who speak each other's language. When people understand what you understand, you're speaking their language! It's the beginning of true ________.
【1】A. fled B. changed C. died D. grew
【2】A. frightened B. pleased C. joined D. challenged
【3】A. punish B. sell C. cure D. kill
【4】A. meeting B. party C. exhibition D. situation
【5】A. perform B. witness C. monitor D. plan
【6】A. signal B. right C. chance D. decision
【7】A. unimportant B. impossible C. uncommon D. unnecessary
【8】A. if B. because C. before D. though
【9】A. promise B. prove C. refer D. show
【10】A. finally B. almost C. suddenly D. voluntarily
【11】A. play with B. speak to C. look after D. smile at
【12】A. sit B. come C. settle D. quiet
【13】A. rudely B. coldly C. gently D. heavily
【14】A. behind B. with C. under D. for
【15】A. idea B. problem C. wish D. truth
【16】A. lesson B. sentence C. person D. language
【17】A. insist B. order C. suggest D. ensure
【18】A. do B. agree C. work D. like
【19】A. trusted B. understood C. supported D. cared
【20】A. love B. friendship C. communication D. story
26、新高考全国卷中题型变化很多，不少学生感到新作文题型——读后续写（continuation writing）很具挑战性。请你以高三学生李华的身份给外教Helen 写一封信，咨询她的建议。内容包括：
1. 写信原因；
2. 题型简介；
3. 你的困难。
注意：1. 写作词数应为 80 左右；
2. 请在答题卡的相应位置作答。
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