家庭消防安全知识2021届上海市杨浦高级中学高三英语二模试题及答案解析
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
A
Four Best Hikes in the World
There's nothing like getting out and getting some fresh air on a hike. No matter whether your idea of a hike is a leisure walk or climbing the highest mountain on Earth, we've got you covered. Below are four best hikes inthe world.
Torres del Paine W Circuit
Location (位置): Patagonia. Chile
Distance: 37 + miles
Time: 5~6 days
Best time to go: October to January
The W Circuit is one of the most recommended hikes you'll find. Not only will you appreciate the diver landscapes and striking granite pillars (花岗岩柱子), but you'll probably meet some new friends along the way.
Grand Canyon Rim - to - Rim Hike
Location: Arizona, the United States
Distance: 48 miles
Time: 1~3 days
Best time to go: May to June, September to October
There's no better way to experience one of the greatest wonders in the world. Located in one of the USA's most beautiful parks, the views are ly appealing. Just make sure you're prepared for the challenge.
Trek to Petra烟花笑
Location: Jordan
Distance: 47 miles
Time: 5~ 6 days
Best time to go: October to April
Take the road less traveled through the Kingdom of Jordan and experience one of the ven wonders of the world. Hike through canyons, gorges and ridges, and e tombs and temples along the way all while avoiding
crowds of tourists.
Yomite Grand Traver
Location: California, the United States
Distance: 60 miles
Time: 6~7 days
Best time to go: July to September
Known for some of the best hiking in the world, Yomite National Park is famous for its views and huge quoia (红杉) trees. Praid byNational Geographic, the Yomite Grand Traver will take you through waterfalls and green mountaintops.
1.Which of the following is the best time for the hike in Patagonia, Chile?
A.April
B.May
C.August
D.December
2.Where should you go for a less crowded hike?
A.Jordan
B.Patagonia, Chile
C.Arizona, the United States
D.California, the United States
3.What can you do along the Yomite Grand Traver?
A.Plant quoia trees
B.Appreciate waterfalls
C.Visit local temples
D.Climb granite pillars
B
I had just delivered a memorable speech, and I was about to learn how the judges decided my performance. The audience leaned forward and a period of silence fell across the room. I felt the drum rolled in my heart.
The third-place winner was announced. The name was not mine. Then the cond-place winner, still not me. At last, the moment of truth came. I was about to either enjoy the warmth of victory or regret the months’ preparation. My heart felt clor to the latter.
Losing is a part of life, and I have dealt with it on more than one occasion. However, it was an indescribable feeling to drive a 200-mile round trip, get up very early on a freezing Saturday morning, and yet still finish fourth out of four competitors in my group. After Lincoln lost the 1858 Illinois Senate race, he said, “I felt like the 12-year-old boy who kicked his toe. I was too big to cry and it hurt too bad to laugh.” Oh yeah, I could relate.
I had spent many hours in front of a computer and in libraries doing rearch for the Lincoln Bicentennial Speech Contest. After not placing in the first year of the contest, I really wanted to compete again. Lincoln had many failures, but he never allowed them to defeat his spirit or ambition, so I was not going to give up on a
cond contest! I reworked my speech for the following year, but again I did not place.
I couldn’t accept the fact that I failed twice in something that I had worked so hard on, until I thought about my hero. Never mind the lost prize money and prai—through learning stories about Lincoln,
有哪些四字词语
I discovered that I can fail successfully.
4. How did the author feel after finishing his speech?
A. Delighted.
B. Annoyed.
胎心监护不过关的原因
C. Thrilled.
D. Nervous.
5. What can be inferred from Paragraph 3?
A. He was regretful about his not being fully prepared.
B. He felt upt for getting up early on a chilly morning.
C. He once kicked and hurt his toe when he was 12 years old.
D. He turned out to be the last one of his group in the contest.
6. Why did the author decide to enter the cond contest?
A. He was eager to prove himlf to be the best contestant.
B. He was inspired by the never-give-up spirit of Lincoln.
C. He was willing to enjoy the warmth and joy of victory.
D. He was determined to win the prize money and prai.
7. Which of the following can be the best title for the text?
A. A memorable hero in my life
B. Never mind others’ judgments
C. Losing is an indescribable feeling
D. Stand up from where we tripped over
C
比较教育学This year rearchers expect the world to snap 1.35 trillion photographs, or about 3.7 billion per day. All tho 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 urs 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 rvices while allowing authorized urs to brow and display their photographs as usual.
Malicious (恶意的) attempts to access or leak cloud-bad photographs can expo personal information. In November 2019, for example, a bug in the popular photograph storage app Google Photos mistakenly shared some urs' private videos with strangers. Security experts also worry about employees at cloud storage companies on purpo accessing urs' images.
So the Columbia rearchers came up with a system called Easy Secure Photos (ESP), which they prented at a recent conference. “We wanted to e if we could make it possible to encrypt data while using existing rvices,” 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 rvice.”
To overcome this problem, they created a tool that prerves blocks of pixels but moves them around to effectively hide the photograph. First, ESP's algorithm (算法) divides a photograph into three parate files, each one containing the image's red, green or blue color1 data. Then the system hides the pixel blocks around among the 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 access them without the decryption (解密) key.
8. What's probably the main purpo 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 ll urs' passwords.
B. They have invented new tools.
C. They often let out personal information.
D. They may steal a glance at urs' images.
10. What's the advantage of ESP?
A. It can provide clear images.
B. It can decrea 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.
D
For fishermen and sailors in the aside town of Shangpan in Linhai, Zhejiang province, where recently 12 stranded（搁浅的）whales were found, it is not unusual to spot whales or dolphins in the a — they would always
call them haizi, or “son of the ocean”. And if the local fishermen spot such intelligent a creatures in need, they will save them from danger without hesitation.
In the recent rescue of melon-headed whales, they tried their best to help as a 37-cond video of a young man sleeping in the water holding a whale soon went viral online, with netizens applauding his constant efforts and caring heart in trying to keep the whale alive. “The melon-headed whale knew I was trying to save it and would be more cooperative and wouldn’t move.” said Lu Wenhui, a 21-year-old diver from Hangzhou Changqiao Polar Ocean Park, who held up the whale’s head so it c
ould breathe easily. Lu had been staying in the water for 10 hours by Wednesday after coming for the rescue work on Tuesday, when the stranded whales were first spotted.
“Whales are mammals and need to breathe in air — that’s why I had to hold its head, to ensure it could breathe smoothly the whole time,” Lu said. The stranded whales, after the struggling of being transported, were worn out when they arrived at the fish farm and might have drowned if they were left unattended.
The reason why the whales were stranded is still not clear. And the stranded whales were returned to the ocean becau they are not adapted to artificial breeding environments on land.
12. What do local fishermen usually do after finding haizi in danger?
A. Ignore them.
烧冬瓜B. Feed them.
C. Transport them.
D. Protect them.
13. Why does the author describe Lu’s rescue work?
A. To introduce the whales in detail.
B. To voice his views on the diver.
一般规律C. To prai the efforts made by rescuers.
D. To explain the value of the whales.
14. What can we say about the melon-headed whales according to the text?
A. They are rarely en by locals.
B. They are ud to breathing in the a.
C. They aren’t suited to artificial surroundings.
D. They are fond of swimming near the aside.
15. Which of the following can be the best title for the text?
A. Melon-headed Whales Were Stranded
B. Rescuers Went All out to Help Whales
C. Fishermen Transported Stranded Whales
D. Witness Voiced Opinions on Rescue Work
>描写春天景色的诗句
