选择知识点

阅读以下英文,完成下列题。
People often use their phones to take pictures of their meals—especially fancy(华丽的)ones—to share online. But Clear Plate, a WeChat mini-program, encourages you to take pictures of your empty plates after a meal. The program’s AI(智能)“sees” that your plates are empty and gives you points. You can use these points to buy yourself gifts or give away the points to buy meals for children in poor areas.
The program was developed by Liu Jichen, 23, a student at Tsinghua University. Liu came up with the idea in 2017.“Technology is a good way to cut down food waste,” said Liu. He put together a 20-member team to work on the program. To teach the program’s Al how to recognize(辨别)empty plates, the team spent half a year collecting100,000 photos from restaurants in 10 cities.
The team also started a campaign called Clear Your Plate in Chinese universities in 2018.Students compete against each other to see who can get those most points in Clear Plate. Now in its third year, the one-month campaign has reached 1, 017 schools. In 2020, almost 16 million people took part in it, cutting down food waste by 862 tons and carbon emissions(排放)by 3, 337 tons.
Thanks to his work, Liu was chosen as one of the United Nations’ 2020 Class of Young Leaders for the Sustainable Development Goals(可持续发展目标). “We hope our efforts can encourage young people to cherish(珍惜)the food and save the food,” Liu said.
(1)People are encouraged to share their_______ plates after meals in the program Clear Plate.
A.empty B.fancy C.full D.creative
s AI(智能)‘sees’ that your plates are empty and gives you points. ”可知，在“光盘打卡”微信小程序中，人们被鼓励在饭后分享他们的空盘子。故选A。
(2)Why did Lin develop the program?
A.To make people enjoy their lives.
B.To develop science and technology.
C.To cut down food waste.
D.To complete his homework in the university.
(3)What does the underlined word “campaign” mean?
A.volunteer. B.ability. C.communication. D.activity.
(4)What can we know from the passage?
A.We can give away points in the program to our friends to buy meals.
B.Liu’s team made efforts to teach the program’s AI how to recognize empty plates.
C.In 2018, 1, 017 schools took part in the Clear Your Plate campaign.
D.Liu was the youngest leader of the United Nations.
(5)What is the best title for the passage?
A.How can we become good leaders.
B.The ways to save food.
C.A program helps us save food.
D.Everyone can be an inventor.

阅读以下英文,完成下列题。
The pneumonia (肺炎) caused by novel coronavirus (新型冠状病毒) is a newly-found disease from which the public should strengthen prevention.
Here are some tips for you to prevent catching the infection (传染).
①Wear masks outdoors.
Wearing a mask is one of the most effective ways to protect you from getting infected as the virus is predominantly spread in droplets (飞沫).
Make sure to wear it properly by tightening up the nose clip and pulling the bottom of it over your chin (下巴) so that your nose and mouth are both covered. If you’ re not feeling well or have symptoms (症状) such as cough, fever, fatigue(疲劳) and trouble breathing, a mask is also needed to prevent you from spreading viruses to others.
②Cover your coughs and sneezes with tissue (纸巾).
Cover your mouth and nose with a tissue when you cough or sneeze and avoid covering with your hands directly. A healthy adult can release around 300, 000 microbes (微生物) including bacteria (细菌) and viruses when coughing or sneezing.
③Wash your hands frequently and properly.
Wash your hands with soap and running water thoroughly for at least 15 seconds, especially：
•Before eating and after using the toilet
•After returning home
•After touching trash or garbage
•After contacting with animals or handling animal wastes
④Strengthen your immune(免疫) system and exercise regularly.
Exercise regularly is one of the most important ways to help you stay away from catching any infections.
⑤Make sure that shared spaces have good air flow and avoid going to crowded places such as hospitals, railway stations and airports.
⑥Avoid close contact with people who have flu or cold-like symptoms. Avoid contact with wild animals or farmed livestock without any protection.
(1)______ is one of the most effective ways to protect you from getting infected as the virus is predominantly spread in droplets (飞沫).
A.Wearing glasses B.Wearing a scarf C.Wearing a hatD.Wearing a mask
(2)A healthy adult can release around _______ microbes (微生物) including bacteria (细菌) and viruses when coughing or sneezing.
A.30,000 B.500,000 C.300,000 D.3,000,000
(3)In order to prevent catching the infection, you should wash your hands thoroughly, especially ________.
①Before eating and after using the toilet
②after returning home
③After touching trash or garbage
④After contacting with animals or handling animal wastes
A.①③④ B.②③④ C.①②③ D.①②③④
(4)Which of the following is NOT true about the prevention of the pneumonia caused by novel coronavirus?
A.Exercise regularly is one of the most important ways to help you stay away from catching any infections.
B.Make sure that shared spaces have good air flow and avoid going to crowded places.
C.Avoid close contact with people who have flu or cold-like symptoms.
D.Contact with wild animals or farmed livestock without any protection.
(5)From which is the text probably taken?
A.A travel guide. B.A geography textbook.
C.A science magazine. D.A storybook

阅读以下英文,完成下列题。
Jerry is a world-famous mountain climber. He was even named Adventure of the Year by a famous geography magazine in 2018.
Although Jerry had achieved great success, he didn’t feel fulfilled. He asked himself, “Is it enough to climb the highest mountains? Am I doing something helpful? How can I turn my adventures into something that can help the world?”
Jerry learned that scientists need plants, rocks and water samples(样本)from the places far away to do research. But scientists can’t get there themselves. Jerry thought himself could do something to help. He then came up with an idea. He set up a team of top adventures to collect samples for scientists. By studying the samples, scientists could know more about the earth and find ways to protect it.
Recently Jerry and his adventurer friends have discovered a special plant life of Mountain Qomolangma. The samples they brought back have helped scientists how plants live in extreme(极端的)conditions.
For Jerry, this kind of adventure is most satisfying. “Such adventures had made us see life in a different way. Now, being the best climber isn’t important for me, what matters is doing something helpful while climbing the mountains. There is still much more we can do.” Jerry said to a newspaper.
(1)What is paragraph 1 mainly about?
A.Jerry’s friends. B.Jerry’s achievements.
C.High mountains. D.A geography magazine.
(2)What does the underlined word “fulfilled” in paragraph 2 mean?
A.Satisfied. B.Lonely. C.Patient. D.Worried.
(3)Why did Jerry set a team of top adventures?
A.To make friends. B.To help scientists.
C.To study plants. D.To train scientists.
(4)Jerry’s and his friends’ adventures had changed ________.
A.their hobbies B.their friendship
C.their understanding of life D.their living conditions
(5)Which can be the best title for the passage?
A.Dangerous Mountains Climbing.
B.Important Scientific Discoveries.
C.Plants Found on High Mountains.
D.Adventures Turned into Something Greater.