阅读理解。
Have you ever paid attention to the Air Quality Index(空气质量指标) or AQI reported in the newspaper? The AQI helps us understand what the air quality around us means to our health. The AQI uses colors, numbers and words to tell us about the air. Let’s see what these colors and numbers mean.
AQI colors | AQI numbers | Health word(s) | What to do |
Green | 0-50 | Good | Just enjoy the clean air! |
Yellow | 51-100 | Mederate(适中) | Air quality is fine for most people. |
Orange | 101-150 | Unhealthy for sensitive(敏感的) group | Active children and adults and people with lung disease should spend less time outdoors. |
Red | 151-200 | Unhealthy | People with lung disease and active kids and adults shouldn’t spend too long time outdoors. Everybody else should try to spend less time outside. |
Purple | 201-300 | Very unhealthy | People with lung disease and active kids and adults should not spend any time outdoors. Everybody should try not to go outside. |
1.If the Air Quality Index is _______, the air quality is good for most people.
A. orange B. yellow
C. red D. purple
2. When the AQI color is green, the AQI number may be___________.
A. 40 B. 80
C. 120 D. 160
3. The ______ AQI number are, the ______ air quality is.
A. bigger; better B. bigger; nicer
C. smaller; worse D. smaller; better
4.The doctor advises Mr. Zhang________ if the AQI number is between 151 to 200 because of his lung disease.
A. to stay outdoors often for fresh air
B. to spend less time outdoors
C. not to stay outdoors for a long time
D. never to spend any time outdoors
5. Which of the following is TRUE?
A. If the AQI numberis 140, the AQI color will be red.
B. People with lung disease are very sensitive to the air.
C. If the AQI color is purple,the air is the best for people.
D. The AQI can’t help people know the air quality.
九年级英语阅读理解中等难度题
阅读理解。
Have you ever paid attention to the Air Quality Index(空气质量指标) or AQI reported in the newspaper? The AQI helps us understand what the air quality around us means to our health. The AQI uses colors, numbers and words to tell us about the air. Let’s see what these colors and numbers mean.
AQI colors | AQI numbers | Health word(s) | What to do |
Green | 0-50 | Good | Just enjoy the clean air! |
Yellow | 51-100 | Mederate(适中) | Air quality is fine for most people. |
Orange | 101-150 | Unhealthy for sensitive(敏感的) group | Active children and adults and people with lung disease should spend less time outdoors. |
Red | 151-200 | Unhealthy | People with lung disease and active kids and adults shouldn’t spend too long time outdoors. Everybody else should try to spend less time outside. |
Purple | 201-300 | Very unhealthy | People with lung disease and active kids and adults should not spend any time outdoors. Everybody should try not to go outside. |
1.If the Air Quality Index is _______, the air quality is good for most people.
A. orange B. yellow
C. red D. purple
2. When the AQI color is green, the AQI number may be___________.
A. 40 B. 80
C. 120 D. 160
3. The ______ AQI number are, the ______ air quality is.
A. bigger; better B. bigger; nicer
C. smaller; worse D. smaller; better
4.The doctor advises Mr. Zhang________ if the AQI number is between 151 to 200 because of his lung disease.
A. to stay outdoors often for fresh air
B. to spend less time outdoors
C. not to stay outdoors for a long time
D. never to spend any time outdoors
5. Which of the following is TRUE?
A. If the AQI numberis 140, the AQI color will be red.
B. People with lung disease are very sensitive to the air.
C. If the AQI color is purple,the air is the best for people.
D. The AQI can’t help people know the air quality.
九年级英语阅读理解中等难度题查看答案及解析
We are glad that more attention has been paid _______ the air around us.
A. to improve B. to to improve C. to improving D. to to imporving
九年级英语单选题中等难度题查看答案及解析
Can you tell me how you got all the audience ___________ attention to what you said?
A. pay B. paid C. to pay D. paying
九年级英语单选题中等难度题查看答案及解析
Have you ever wondered how a kite stays in the air? Wind is very important but so are two scientific words: gravity(重力) and lift(举力).
When something is in the air, gravity is what pulls something back to the ground. _______ you throw a ball in the air, it comes back down because of gravity. When leaves ____ trees onto the ground, that’s gravity. When you put a kite in the air, gravity wants to bring it ____ . Then what keeps it up? Wind! Wind creates lift.
Lift is what happens when wind pushes against something and carries it up. When a plastic bag gets caught in the wind, lift is what causes it to rise into the air. When you put a silk scarf ____ a fan, lift causes ____ to wave(摆动). An object’s lift depends on the size of its surface or its area. A piece of _____will float(漂浮)in the wind, but it won’t float if you make that paper into a ball. That’s because you’ve made the surface smaller.
To find out if there is enough wind to fly a kite, go outside and look up. If you ______leaves dancing on trees or flags waving sideways, it’s ____ good kite-flying weather. When the wind is strong enough to move a flag, it’s moving ____ 7 to 18 miles an hour. That’s just ____ to lift a common kite.
1.A. Which B. What C. When D. Where
2.A. take off B. get off C. keep off D. fall off
3.A. up B. down C. off D. out
4.A. in the middle of B. n the front of C. at the back of D. in front of
5.A. t B. them C. this D. that
6.A. bread B. cake C. card D. paper
7.A. hear B. see C. smell D. feel
8.A. probably B. finally C. quickly D. hardly
9.A. on B. at C. in D. by
10.A. wrong B. favourite C. right D. strange
九年级英语完型填空简单题查看答案及解析
阅读理解。
Have you ever complained why life is so tiring? Does the sky sometimes seem dark to you? Are your studies sometimes not successful? Well, friends, cheer up and smile all the time. If you see the world with your warm heart, you'll find that the whole world smiles to you. While in school, sometimes you are tired of your lessons, but have you ever noticed the happy smile on your teacher's face when you did a good job?
One day it is fine. Just before you go out, it suddenly starts to rain. Maybe you would feel very sad and start to complain about the weather. But friends, why don't you sit down and listen to the free concerts that the nature offers you? And with the timely (及时地) rain, crops in the fields will grow better and better and farmers will have a good harvest.
Although everyone wants to succeed in what he tries to do, sometimes failure can't be avoided. I think failure is not terrible, and the terrible thing is that we are afraid of it and give up hope. When we face failure, we must be confident (信心) in ourselves, draw a useful lesson from it and try our best to finish what we have decided to do. As a popular saying goes," Failure is the mother of success".
Attitude (态度) decides everything. With an optimistic (乐观) attitude life is easy and pleasant. Let's smile to whatever we meet and the whole world will smile to us.
1. People sometimes complain_______.
A. life is tiring
B. their studies are successful
C. the sky is always dark
2. According to the passage, in school,_______.
A. the students don't like their lessons
B. the teachers will be happy if the students do good jobs
C. the teachers don't like their teaching
3. When we face failure, we_______.
A. shouldn't give up hope
B. must be confident in ourselves
C. Both A and B
4.If there is a timely rain,_______.
A. farmers can't have a good harvest
B. you can listen to a concert
C. crops in the fields will grow better
5. The best title for this passage is _______.
A. Smile and the World Smiles to You
B. Complaining about life
C. Failure is the Mother of Success
九年级英语阅读理解中等难度题查看答案及解析
阅读理解。
Have you ever dreamed about sending a letter to yourself or your friends in the future? While express mail(快递) is a fast way to send your letters, there is another type of mail appearing in China as a new business—future mail.
“The letter should be sent next Mother’s Day and not a day earlier!” Lin Xiaofan, a college student in Shanghai, tells one of the companies offering the service.
Lin Xiaofan wrote the letter to her mother nearly a year earlier to express her love to her mother for next Mother’s Day.
“Offering this service makes people slow down and lets them understand the meaning of ‘time’ in another way,” said Zheng Zhimin, manager at a “future mail” company. Zheng thinks “future mail” letters help remind us of care, friendship and love.
While “future mail” is becoming more and more popular, some people are wondering what will happen if the postal address changes or if the company goes broken before the letters arrive.
Zheng said customers are glad to sign a contract(签订合同) to make sure that they can becompensatedif their letters are lost or damaged.
Most of the customers are college students and young white-collar(白领) workers. Psychologists (心理学家) said that young Chinese might have a new way to express their feelings through this service. Most people put their hopes and wishes in the letter so that they can experience the connection(联系) between the past and the present when they receive the letter.
1.“Future mail” is a/an ______ way to send your letter.
A. fast B. old
C. new D. cheap
2.The underlined word “compensate” means ______ in Chinese.
A. 赔偿 B. 完成
C. 送达 D. 抛弃
3.The “future mail” service is popular among ______.
A. junior students B. college students
C. young children D. blue-collar workers
4.The “future mail” service can help us ______.
A. sign a contract
B. express our love and care
C. forget friendship
D. understand the meaning of “time” in a wrong way
5.You’d better use “future mail” if you want to ______.
A. save money from sending express mail
B. send a birthday gift to your friend quickly
C. talk with your friends about your life freely
D. send a your best wishes to yourself on January 1, 2020
九年级英语阅读单选中等难度题查看答案及解析
阅读理解。
Have you ever dreamed about sending a letter to yourself or your friends in the future? While express mail(快递) is a fast way to send your letters, there is another type of mail appearing in China as a new business—future mail.
“The letter should be sent next Mother’s Day and not a day earlier!” Lin Xiaofan, a college student in Shanghai, tells one of the companies offering the service.
Lin Xiaofan wrote the letter to her mother nearly a year earlier to express her love to her mother for next Mother’s Day.
“Offering this service makes people slow down and lets them understand the meaning of ‘time’ in another way,” said Zheng Zhimin, manager at a “future mail” company. Zheng thinks “future mail” letters help remind us of care, friendship and love.
While “future mail” is becoming more and more popular, some people are wondering what will happen if the postal address changes or if the company goes broken before the letters arrive.
Zheng said customers are glad to sign a contract(签订合同) to make sure that they can be compensated if their letters are lost or damaged.
Most of the customers are college students and young white-collar(白领) workers. Psychologists (心理学家) said that young Chinese might have a new way to express their feelings through this service. Most people put their hopes and wishes in the letter so that they can experience the connection(联系) between the past and the present when they receive the letter.
1.“Future mail” is a/an ______ way to send your letter.
A.fast B.old
C.new D.cheap
2.The underlined word “compensate” means ______ in Chinese.
A.赔偿 B.完成
C. 送达 D.抛弃
3.The “future mail” service is popular among ______.
A.junior students B.college students
C.young children D.blue-collar workers
4.The “future mail” service can help us ______.
A. sign a contract
B. express our love and care
C. forget friendship
D. understand the meaning of “time” in a wrong way
5.You’d better use “future mail” if you want to ______.
A.save money from sending express mail
B.send a birthday gift to your friend quickly
C.talk with your friends about your life freely
D.send a your best wishes to yourself on January 1, 2020
九年级英语阅读理解中等难度题查看答案及解析
Much more attention should_______ when we have exams.
A. pay to B. be paid to C. be paid D. pay
九年级英语单项填空中等难度题查看答案及解析
阅读下列材料,从A、B、C、D四个选项中选出最佳答案,
Have you ever returned a book late to the library before?If so,you may pay a small fine(罚款).How much would you have to pay if the book is returned 65years late?
A high school in Washington,Us had to deal with such a problem recently.A copy of Gone with the Wind was finally returned to its library 65years late.
However,the school said that it would not ask Wayne to pay the fine,though that would be about 475.
The book was borrowed out of the library of the high school in 1949,and disappeared until it was found in Maine,Us by Wayne.Wayne found the book in his father’sbasement(地下室) and then offered to send it back to the school.
“I feel very sorry about that,”Wayne said.
“We’re very pleased to have the book back.Wayne did the right thing,”LoriWyborney,headmaster of the school said.
1.The book was borrowed out of the library of the high school A .
A.in1949 B.in1965
C.in1975 D.in2014
2.Gone with the Wind is the name of C .
A.a library B.a school
C.a book D.a magazine
3. B offered to send the book back to the school.
A.Wayne’s father B.Wayne
C.Lori’s headmaster D.Lori.
九年级英语阅读理解中等难度题查看答案及解析
Are you worried about its quality when you have(56)1.(酸奶)now? Do you feel it difficult to choose the safest one when you stand in front of the shelf of cooking oil in a supermarket? Food(57)s2.is probably the thing Chinese people worry most now, but how can we be sure the food we eat is safe? The WHO (World Health Organization) says that there are 5 main rules to make sure that food is safe to eat. Stop germs(病菌(58)3.affecting our food by keeping ourselves and areas where food is kept, prepared and served clean. Make sure that raw(生的)and cooked foods are not kept together so that the raw food can't dirty the(59)c4. food. Be certain that food is cooked for the correct amount of time to kill any bacteria(细菌.)If you have to store any food, make(60)s5. it is stored at the right temperature. Use safe(61)6.(水)when cooking and cleaning food.
One of the most important things we can do to stop food(62)7.(污染)is to properly wash our hands before we prepare or eat any food. It is(63)8. that we should wash our hands with warm water and soap for 10 to 20 seconds to make sure they are clean. Of course we can(64)f9. these steps in our own homes to keep our food safe, but how can we be sure that the places we buy our food from also follow the right rules? There are organizations which work hard to make sure that food is safe. This also includes making sure that the correct labeling(标签)is on the food people buy and checking that an additives(添加剂)in the products are safe. We have to put food into our body. The food must be safe and healthy to(65)10.our body safe and healthy.
九年级英语单词填空困难题查看答案及解析