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人教（2019）版高中英语选择性必修第一册第二单元限时练
时间：100分钟 分值：120
第一部分 阅读理解(共两节，满分50分)
第一节 (共15小题；每小题2.5分，满分37.5分)
阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题纸上将该项涂黑
A
Unsolved Mysteries About the Planet Earth
Mystery 1: Where did water come from?
Water covers more than 70 percent of the Earth's surface and that makes the Earth earn the nickname " the
blue planet " . Then where di water come from? The most popular scientific theory states that the H2came from
several violent asteroids(小行星）covered with ice.Anothe suggests that the water actually has been around since
the Earth's formation However it happened, though, it's certainly worked out well for the Earth life forms.
Mystery 2: What about all the oxygen?
Another thing is the planet's oxygen. Tiny creatures released oxygen as a waste product , filling the
atmosphere with it . After that , the level of oxyge in the Earth's atmosphere went wildly up and down until it
finally calme down around 540 million years ago. Since then, it's remained at about the breathable level we know
today. But what caused it to be suddenly steady?
· Mystery 3:What caused the Cambrian(寒武纪）Explosion?
The Cambrian Explosion refers to the explosion of complex life forms that occurred on Earth about 540
million years ago. Before then, life had consisted mostly of microbes. But at the beginning of the Cambrian period
complex creatures began developing at a rate never seen before. Suddenly,life forms had brains, eyes, and bones.
Most living creatures today can trace their blood back to the Cambrian period.
Mystery 4: Will we be able to predict earthquakes?
We still haven't been able to come up with a way to accurately predict earthquakes. We can certainly try, but
our current technology cannot predict them exactly. We know that earthquakes start when the rock cracks
underground and the enormous energy released in the process causes vibration, which generates earthquake waves,
but we haven't figured out why that happens, or how to predict it.
1.What was created by creatures on Earth?
A.Water. B.Bacterium. C.Oxygen. D.Ice.
2. Which of the following talks about the Earth's advanced species?
A . Mystery 1 . B.Mystery 2. C. Mystery 4. D.Mystery 3.
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂3. What do we know about Mystery 4?
A. It is a matter that has extremely practical significance.
B.It will be solved in the near future.
C. It is the most difficult mystery to solve of the four.
D. It is the oldest mystery of the four.
B
Russ Fee was asleep inside his tent last summer in Canada's Banff National Park when screams shocked and
awoke him. Throwing on his shoes and grabbing a lantern his wife had handed to him , he ran out to
investigate .Despite the darkness, he could make out a neighboring tent. There was a wolf dragging something in
his teeth-a man.
Moments earlier, Elisa and Matt, were asleep with their two young children when the wolf tore into their tent.
"It was like something out of a horror movie," Elisa recalled. For three minutes, Matt threw his body in front of
Elisa and the boys and fought against the wolf. At one point, Matt got the upper hand, but the wolf turned the tables
and dragged Matt outside while Elisa was pulling on his legs trying to get him back.
It was then that Russ Fee entered the picture. He ran toward the beast, kicking it in the hip. The wolf dropped
Matt and emerged from the tent. Fee felt like he had hit someone bigger than him.
Before the wolf could turn its anger at Fee, Matt, whose arms were bloody, restarted the battle. The men threw
rocks at the wolf, keeping it off. Then the families fled to the shelter-Fee's minivan and called an ambulance.
"Attacks are so rare that a person here has a greater chance of being killed by a dog, lightning, a bee sting, or a
car collision with a deer thar being injured by a wolf , " said Matt .
Fee did think about drawing back , if less heroic , in the heat of battle . The moment the wolf locked eyes with
him, Fee said, "I immediately regretted kicking it."
4.What were the two families doing in Banff National Park?
A. They were making a horror movie.
B. They were camping.
C. They were studying wolves.
D. They were investigating the park.
5.How did Matt escape from the wolf?
A. By Fee's kicking the wolf from behind.
B. By turning the table on the wolf.
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂C. By placing his hand tightly on the wolf.
D. By his wife's pulling on his legs.
6. What can be inferred from Paragraph 5?
A. Many deer are killed by vehicles.
B. Dogs are people's friends in need.
C. Wolves seldom attack people there.
D. People are often attacked by wolves.
7. Which word can best describe Fee in the story?
A. Brave. B. Responsible.
C. Indifferent. D. Clever.
C
As data and identity theft becomes more and more common, the market is growing for biometric（生物测
量）technologies—like fingerprint scans—to keep others out of private e-spaces. At present, these technologies are
still expensive, though.
Researchers from Georgia Tech say that they have come up with a low-cost device（装置）that gets around
this problem: a smart keyboard. This smart keyboard precisely measures the cadence（节奏）with which one
types and the pressure fingers apply to each key. The keyboard could offer a strong layer of security by analyzing
things like the force of a user’s typing and the time between key presses. These patterns are unique to each person.
Thus, the keyboard can determine people’s identities, and by extension, whether they should be given access to the
computer it’s connected to — regardless of whether someone gets the password right.
It also doesn’t require a new type of technology that people aren’t already familiar with. Everybody uses a
keyboard and everybody types differently.
In a study describing the technology, the researchers had 100 volunteers type the word ＂touch＂four times
using the smart keyboard. Data collected from the device could be used to recognize different participants based on
how they typed, with very low error rates. The researchers say that the keyboard should be pretty straightforward to
commercialize and is mostly made of inexpensive, plastic-like parts. The team hopes to make it to market in the
near future.
8. Why do the researchers develop the smart keyboard?
A. To reduce pressure on keys. B. To improve accuracy in typing
C. To replace the password system. D. To cut the cost of e-space protection.
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂9. What makes the invention of the smart keyboard possible?
A. Computers are much easier to operate.
B. Fingerprint scanning techniques develop fast.
C. Typing patterns vary from person to person.
D. Data security measures are guaranteed.
10. What do the researchers expect of the smart keyboard?
A. It’ll be environment-friendly. B. It’ll reach consumers soon.
C. It’ll be made of plastics. D. It’ll help speed up typing.
11. Where is this text most likely from?
A. A diary. B. A guidebook
C. A novel. D. A magazine.
。
D
In the past decade, the use of social media has grown in a way that no one could have guessed. It has turned
some teenagers into celebrities and turned the famous into the infamous,overnight.
A key feature of social media, however, is its volatility.Trends come and go, disappearing almost as quickly as
they appeared.
Short video apps such as Tik Tok and its Chinese equivalent(对应物）Douyin,took the world by storm.The
Telegraph reported that Tik Tok was ranked 8th on Apple's App Store in April. And Douyin had more than 300
million domestic monthly active users in June, CNBC said.
Why are these short videos-which are rarely longer than a few minutes-so popular? Jiang Yige, Singapore-based
analyst at FengHe Fund Management, has a theory. "Short videos are just right to fill in the little gaps in our busy
schedules,"he told CNBC.
These videos--apart from being very convenient--are important to teenagers because they allow them to express
themselves,according to Teen Vogue.
Liza Koshy, a user of the US app Musical. ly who has over 2 million followers,said,"The sense of community
that users of short video apps get is another appealing feature."
Live streaming(直播）is a feature of our social media life that now seems as natural as sunrise . It's a pretty
neat idea : You can watch anyone , anywhere , live . However , China has taken live streaming to a whole new
level. In China, more than 100million viewers monthly watch a live streaming video. Forbes thought that a number
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂of factors had led to the popularity of live streams. Among them is viewers' ability to interact with others using
unknown names.
However, the quick development of social media may be having side effects too. Fake news is one serious
problem it causes. Materials shared on these platforms are often not checked for accuracy. The most basic content
can be false and can mislead users one way or another. We use social media all the time; that doesn't mean that we
understand the influence it is having on us. We should be mindful of both the time we spend on it and its impact on
our minds.
12. The underlined word "volatility" in Paragraph 2 possibly means "being__".
A.changeable B.steady
C.promising D.violent
13. According to Liza Koshy, short videos are very popular because_____.
A.they are very convenient
B.they help people kill time
C.they provide a sense of community
D.they allow people to express themselves
14.What do we know about social media?
A.The information from social media is totally reliable.
B.When it comes to social media,people only know short videos.
C.People can't communicate with each other without social media.
D. There is still much room for improvement in social media.
15.What is the author's attitude to the quick development of social media?
A.Objective.
B.Subjective.
C.Favorable.
D.Disapproving.
第二节 (共5小题；每小题2.5分，满分12.5分)
根据短文内容，从短文后的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。
Imagine you are on a long car trip. It is night and you take a wrong turn onto a dark country road. With a
sinking feeling, you realize that you have no idea where you are .
___________16____________, and the answer is written by light. A shining compass face,with north,
south, east and west at the four points, and a big needle is pointing at north. What a relief! You turn your car around
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂and head in the right direction guided by the sky.
For migratory birds, finding their way over long distances through the darkest nights is their second nature.
___________17____-directions written by light and magnetism(磁力）. Some birds travel thousands of miles in
their twice-yearly journeys . ___________18____ , like mountain ranges and rivers , to help decide the directions;
but birds may also navigate by using the stars, and sensing or even "seeing" the Earth's invisible magnetic field.
For many years, scientists have been studying what's behind the strong ability of migratory birds to find their
way to their winter and summer homes.Here is one thing that they agree on. ___________19_____. This compass
leads them to make their very first in the direction that has been the dight in the traveled by the rest of their species.
___________20_____.
A. Then you glance up the sky
B. They do it in part by reading directions in the sky
C.So birds are born knowing which way their home is
D. Magnetism is important for all animals, especially birds and fishes
E. When they're on the way, they take advantage of familiar landmarks
F . Migratory baby birds are already equipped with a kind of natural inner compass
G. In birds, migration means two-way journeys-the onward journey and the backward journey
第二部分 语言运用 （共两节 满分30分）
第一节：完型填空（共15小题，每小题1分，满分15分）
When 19-year-old Chloe Mitchell's senior trip was canceled due to the pandemic, she knew she couldn't just
lie around the house. Not only is she a passionate volleyball player with an active lifestyle, she's also a teenager.
Being ____21____ in the house all day with your parents isn't ideal—no matter how much you love them.
“I was bored. I was really depressed because quarantine had taken away my senior year,” she explained. “I
needed something to ____22____ worries in my mind. I needed ____23____ labor. I needed space from my
family.”
As a self-described DIY obsessive, Mitchell saw the shabby shed in the yard, a relaxing space to call her own.
Unfortunately, as she set about ____24____ the forgotten shed into a stylish vacation home—'She Shed', Mitchell
was upset that social-distancing rules meant she couldn't invite her friends over. So she decided to share the
____25____ with her 34 followers on TikTok, ____26____ close friends, letting them know every step she did
during the following days.
Over the next 10 days, Mitchell began to ____27____ the contents of her small shed used as a storage bam so
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂that it could be cleaned easily. After that, she wiped down the original wooden beams before giving them a fresh
layer of white ____28____ Once the paint had dried, she hung fairy lights, ____29____ the space with plants and
added a television and refrigerator donated by neighbors. She even built herself a daybed and purchased a little bed
for her dog, Lilly.
Happy to be out in the sun, putting her DIY skills to good _____30_____ and sharing the experience with her
friends, Mitchell could never have predicted what happened next. Known as “she shed girl”, Mitchell now has
a(an) _____31_____ 2.7 million followers on TikTok, where she shares DIY tips and snippets of her life as a
freshman at Aquinas College in Michigan. _____32_____ by the success of her first project, Mitchell turned her
attention to the family's pool house, imagining it as a charming pub shed.
Commenting on Mitchell's _____33_____ shed renovation, the experts at My Tool Shed DIY said, “Stress
levels have _____34_____ in the last year due to the effects of the COVID-19 pandemic. Now more than ever
people need time to do something they love. Having a _____35_____ space like a 'she shed' can be perfect for
this.”
21. A. locked B. occupied C. stuck D. closed
22. A. give out B. take off C. pick up D. settle down
23. A. mental B. convenient C. casual D. physical
24. A. building B. mending C. transforming D. exchanging
25. A. assignment B. project C. progress D. shed
26. A. mostly B. really C. hardly D. naturally
27. A. furnish B. prepare C. fix D. empty
28. A. wood B. paint C. sheet D. paper
29. A. filled B. put C. placed D. offered
30. A. position B. effect C. use D. practice
31. A. delighted B. depressing C. incredible D. horrible
32. A. Encouraged B. Frustrated C. Exhausted D. Satisfied
33. A. imperfect B. impressive C. important D. impossible
34. A. decreased B. declined C. raised D. skyrocketed
35. A. reflected B. limited C. relieved D. dedicated
第二节(共10小题；每小题1.5分，满分15分)
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。
Have you ever been too shy to express thanks towards someone? Well, a new study says you should not worry
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂about that so much.
Recently, researchers have published a study on how people gave and ___ 36 ___ (receive) letters of thanks.
___ 37 ___ they found was that expressing and receiving appreciation increased happiness for both ___ 38 ___
(side), but people's self-consciousness (自我意识)often made it less possible for them to express their appreciation.
In the experiments, the researchers asked hundreds of participants ___ 39 __ (write) an email to someone close
to them, __ 40 ___ (express) their appreciation and giving ___4 1 ___ specific example of how that person made
their lives better.
The writers often underestimated (低估)the positive effect that the emails would have ___4 2 ___ the
receivers. They thought that the receivers would feel ___4 3 ___ (awkward) and uncomfortable over the letters than
they actually were. Contrary to the writers’ ___4 4 ___ (believe), the receivers were thankful, warm and
understanding.
So next time you feel hesitant about expressing your appreciation for others, remember that it will most
___ 45 ___ (probable) go a lot better than you think.
第三部分 书面表达（满分40分）
第一节（满分15分）
假设你是李华，你远在美国的笔友Jack对中国的春节很感兴趣，他来信询问有关情况。请你给他回一封电
子邮件，简单介绍春节及中国人是如何过春节的。内容应包括如下要点：
1.春节在中国的地位；
2.春节来临前及期间人们的活动；
3.你对春节的态度。
注意：1.可适当发挥使行文连贯，词数100左右；
2.开头已给出，不计入总词数。
Dear Jack,
Thanks for your e-mail. I’m glad to tell you something about China’s Spring Festival.
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
________________________________________
Yours,
更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂Li Hua
第二节 读后续写（满分25分）
阅读下面短文，根据所给其内容和所给的段落开头语续写成两段，使之构成一个完整的短文。
On Christmas Eve, seventy-three-year-old George selected his food carefully. Skim milk was $2.99, white
bread, 89cents with a 10-cent discount. Leaving the cashier, he calculated that he had saved 80 cents today.
At the exit, the wind reminded him of his gloves. Where are they? Not in the coat pockets. Not in the grocery
bag either. He was sure he was wearing them when he entered the store. He clearly remembered putting them into
the pocket of this coat. George made a second thorough search of all his pockets again, including the grocery bag.
Now he was sure they must have been dropped somewhere inside the store.
Old George had bought the black leather gloves at a 25% discount, for just $35. 00, ten years ago. They were
soft and warm and very durable. He had taken care not to let a drop of water or rain touch his expensive gloves, so
they looked like new. Losing this favorite possession was almost like losing a child to him.
George, calm on the outside but nervous inside. re-entered the store. He followed the same route he had
walked before, starting at the bread counter, to the milk section, the corner where salt and sugar were placed, then
the rest of the store. Several minutes of anxious searching turned out to be in vain. He asked the customers whether
they saw a pair of black leather gloves, but they said no. Then he went over to the cashier without hesitation to ask
if she had received any lost gloves, but only received the same answer. His heart grew heavier.
“Society has changed, people have changed,” he murmured to himself. “Years ago, if somebody picked up
something lost, they would give it back. Now a good action is lost.”
Yet he did not give up hope. He started to stare at anybody wearing black gloves to see if they looked like his.
The first two persons he saw did wear gloves, but one was women’s and the other not black.
注意：
1. 所续写短文的词数应为150词左右；
2. 应使用5个以上短文中标有下划线的关键词语；
3. 续写部分分为两段，每段的开头语已为你写好；
4. 续写完成后，请用下划线标出你所使用的关键词语。
Paragraph 1:
Suddenly, he found a man looking like a lawyer,
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更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂____________________________________________________________________________________________
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Paragraph 2:
During the whole holiday, he was always thinking whether to buy a new pair.
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更多资料添加微信号：hiknow_007 淘宝搜索店铺：乐知课堂
