2021年重庆经开育才中学高三英语二模试卷及答案解析-USB迷|专注于互联网分享

2024年4月9日发(作者：曲博达)

2021年重庆经开育才中学高三英语二模试卷及答案解析

第一部分阅读（共两节，满分40分）

第一节（共15小题；每小题2分，满分30分）

阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项

Information on school visits to Kew Gardens

Enjoy yourselves in a wonderland of science with over 50,000 living plants and a variety of educational events

or amusing activities. Here is essential information about planning a school visit to Kew.

Educational course prices

You can plan a self-led visit or book one of our educational courses. Students will take part in the educational

courses in groups of 15. Prices vary according to different situations.

EYFS (Early Years Foundation Stage) to Key Stage 4:

45-minute course: 35/group 90-minute course: 70/group

Key Stage 5:

Half day (one course): 80/group Full day (two courses): 160/group

Teachers and adults:

Up to required key stage proportions (比例): Free

Adults needed for 1:1 special educational needs support: Free

Adults above the required proportions: 11/person

The payment will due within 28 calendar days of making the booking.

Health and safety

Required supervising (监护) adult-student proportions:

Key Stage 1: 1:5 Key Stage 2: 1:8

Key stage 3: 1:10 Key Stage 4: 1:12

Key Stage 5: 1:12

The group sizes should be controlled if you are visiting potentially busy areas such as the glasshouse and

other attractions. The maximum number of students visiting the glasshouses is 15 per group and each group to

Kew shops should include no more than 10 students.

If there is an emergency, please contact the nearest Kew staff member or call Constabulary on 0208 32 3333

for direct and quick support. Please do not call 999.

Planning your visit

Your tickets and two planning passes will be sent to you upon receipt of your payment. You can complete

your risk assessment with the passes, ensure you bring your tickets and the receipt document and show them to

the staff members at the gate on the day of your visit.

Recommended timings

The Kew Gardens opens at 10 am. You are recommended to spend at least three to five hours on your visit.

The closing time varies throughout the year. But the earliest is 3:30 pm. We have a fixed schedule for educational

courses, which is from 10:30 am to 2:20 pm.

much should a group of 15 Key Stage I students and 4 teachers pay for a 45-minute course?

A.35 B.46 C.57 D.81

should one do in an emergency?

the risk assessment.

999 immediately.

adults or teachers for help.

help from the staff member nearby.

is the purpose of the text?

introduce Kew Gardens.

give tips on visiting Kew Gardens.

attract potential visitors to Kew Gardens.

inform coming activities in Kew Gardens.

As I was walking home，a boy seemed to be singing a song in a very low voice，walking infront of me and

carrying some of the same high school books I had with me.I caught up to him，and said “Hello”．I could tell he

wasstartled，and dropped one of his books.I picked it up and as I handed it to him，he said “Thank you.” in a

strange way，like witha strong accent.

We soon began walking together and turns out he was in my science class，and I didn’t even know

it!

His name was Ahmad，and his family had just moved here this school invited me into his house，and

his family treated me like a special guest，which made me feel very said hospitality (好客) is very

basic to his culture，and strangers were always treated very mom brought out some great food，and

offered me some ’s father and two sisters wanted to hearall about me and my family，and my schooling.

Ahmad’s whole family had to leave their lifelong home because war had broken out，and it wasn’t safe there

left with only what they could family was happy to feel safe，and they got used toAmerican

culture seemed pleased that Ahmad had brought a friend home to meet them.

And as my friendship with Ahmad has continued，I now realize that the world is so much bigger than I

thought！I also realize that your friends don’t have to be just like ences make the world go round.

4. What does the underlined word “startled” in Paragraph 1 mean?

A. Excited. B. Moved.

C. Surprised. D. Interested.

5. Why was the writer treated like a special guest by Ahmad’s family?

A. They liked strangers who came to their home for help.

B. They wanted to know more information about the writer.

C. Strangers were always treated very kindly in their culture.

D. The writer was an American and knew much about their culture.

6. Where does the writer probably come from?

A. Canada. B. America.

C. China. D. Australia.

7. What can we learn from the passage?

A. People from different countries can be good friends.

B. Friends need different cultures and different accents.

C. Your friends should have a lot of things the same with you.

D. You can’t make friends with people from other countries.

This year researchers expect the world to snap 1.35 trillion photographs, or about 3.7 billion per day. All

those pixels (像素) take up a lot of room if they are stored on personal computers or s phones, which is one

reason why many people store their images in the cloud. But unlike a hard on drive which can be encrypted to

protect its data, cloud storage users have to trust that a tech platform will keep their private pictures safe. Now a

team of Columbia University computer scientists has developed a tool to encrypt (加密) images stored on many

popular cloud services while allowing authorized users to browse and display their photographs as usual.

Malicious (恶意的) attempts to access or leak cloud-based photographs can expose personal information. In

November 2019, for example, a bug in the popular photograph storage app Google Photos mistakenly shared

some users' private videos with strangers. Security experts also worry about employees at cloud storage

companies on purpose accessing users' images.

So the Columbia researchers came up with a system called Easy Secure Photos (ESP), which they presented at

a recent conference. “We wanted to see if we could make it possible to encrypt data while using existing services,”

says computer scientist Jason Nieh, one of the developers of ESP. “Everyone wants to stay with Google Photos and

not have to register on a new encrypted-image cloud storage service.”

To overcome this problem, they created a tool that preserves blocks of pixels but moves them around to

effectively hide the photograph. First, ESP's algorithm (算法) divides a photograph into three separate files, each

one containing the image's red, green or blue color1 data. Then the system hides the pixel blocks around among

these three files (allowing a block from the red file, for instance, to hide out in the green or blue ones). But the

program does nothing within the pixel blocks, where all the image processing happens. As a result, the files

remain unchanged images but end up looking like grainy black-and-white ones to anyone who accesses them

without the decryption (解密) key.

8. What's probably the main purpose for people to store images in the cloud?

A. To save storage room. B. To make photos beautiful.

C. To try a new storage way. D. To keep their privacy safe.

9. Why might employees in cloud storage companies be distrusted by experts?

A. They sell users' passwords.

B. They have invented new tools.

C. They often let out personal information.

D. They may steal a glance at users' images.

10. What's the advantage of ESP?

A. It can provide clear images.

B. It can decrease the upload time.

C. It can classify images automatically.

D. It can encrypt data on the original platform.

11. What does paragraph 4 mainly talk about?

A. Method of decryption. B. Image-processing technique.

C. Separate files of images. D. Data analysisof color1 s.

Imagine that youare a superhero. Your superpowers are activated by a special suit. The suit communicates

with your brain. It allows you to do amazing things with only a thought. By concentrating on strength, for example,

you can kick a soccer ball across a field. By focusing on swift actions, you can jump to the top of a tree.

Such a connection between mind and machine may sound like a fantasy. To scientists, though, it is a very real

goal. They are creating machines that let disabled monkeys walk. These machines may soon help disabled humans

do the same. Unlike other bionic devices, these robotic “super suits” do not communicate with muscles and

nerves. Instead, they have a direct line to the brain.

In 2005, doctors drilled a hole in the skull of Hutchinson, who had lost her right arm in an accident. Then they

inserted a sensor onto her motor cortex (大脑皮层运动区). Wires connected the sensor to a receiver on her head.

After she recovered, researchers pluggedHutchinson’s receiver into a cable that relayed signals from her brain to

computers. Then they connected a robotic arm to the computers. The computerscould interpretHutchinson’s brain

signals to move the arm.

Soon,Hutchinson, the computer, and the robotic arm became a nsonwas even able to lift her

hand and drink from a cup. “She smiled when she put down that drink—that’s everything.” says Donoghue, a brain

scientist.

Today other scientists are building on that success. One of those scientists is Dr. Miguel Nicolelis, who

designed a whole-body bionic equipment. In 2014, a disabled former athlete kicked the first ball of the World Cup

Games wearing one of Miguel’s full-body exoskeletons.

The exoskeleton was connected to brain signal sensors in the man’s cap. By thinking about kicking, he sent

signals to a computer on his back. The computer then translated the signal into an exoskeleton-aided kick. Such

designs may become common as scientists keep merging mind and machine.

can best describe the tone of paragraph 1?

A. Narrative and serious.

B. Persuasive and critical.

C. Informative and objective.

D. Descriptive and imaginative.

13. What is paragraph 3 mainly about?

A. Reason of the experiment. B. Results of the experiment.

C. Process of the experiment. D. Significance of the experiment.

14. Why is Dr. Miguel’s exoskeleton special?

A. It can be used on animals.

B. It can move the whole body.

C. It was supported by computers.

D. It was connected directly to the brain.

15. What can be inferred from the last paragraph?

A. Robotic suits may be widely used to help disabled people.

B. Exoskeleton is more common thanHutchinson’s bionic arm.

ific experiments are commonly carried out in football fields.

D. Disabled athletes can now play football again with the help of computer.

第二节（共5小题；每小题2分，满分10分）

阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项

Stress is so common that many people choose to ignore it. But without right management, stress can be

something much more serious.___16___They allow you to continue living your life in a healthy, happy manner.

Breathe

The stress-relief technique that pretty much everyone’s heard of, the act of breathing nonetheless remains an

important point as any when it comes to cooling down the angry blood that’s raging (发怒)around your

body.___17___

Write

___18___Scribble (涂写) your feelings onto a piece of paper. They don’t even have to make sense. Just punch

(按键) away at your computer on a day-to-day basis for five or ten minutes, and you might be surprised at how

light,and carefree you feel afterwards.

___19___Laughing allows us to take in a momentous supply of fresh oxygen from the air, stimulating (刺激)

the muscles and providing our system with some healthy shock treatment that eases tension brought on by stress.

Laughing is something we need to do everyday to stay healthy, and is a great way to keep the bad effects of stress

at bay.

Sleep

Sleep is ly essential for avoiding high stress levels. Everyone needs good amounts of rest, and by remaining

glued (寸步不离) toa computer screen for the entire day without taking a break, your body will suffer the

consequences, and stress will rise as a result.___20___