题目
题型:不详难度:来源:
On Saturday, heavy haze(霾)still covered north and east China. Highways were closed and couldn’t take off on time.
The smoggy weather the country’s land from north to south, including Beijing, Hebei, Shandong, and 6 other provinces. People could only see clearly than 50 meters in some areas.
Cities Shanghai and Nanjing have been covered by the gray sky for the past several days. Many walkers in the street had to wear . In the Lukou airport in Nanjing, more than 60 flights were canceled(取消) on Saturday the haze, which also made primary and middle schools and kindergartens stop on Thursday and Friday in Nanjing.
The office worker of Environmental Protection said earlier this week that there were several reasons behind the widespread haze: unpleasant weather conditions making difficult for smog to disappear, motor vehicle exhaust(尾气), and coal use for winter heating.
To fight pollution, the Chinese government now plans to clean up the air by cutting coal use, some factories, and removing 6 million old cars from the roads.
“We must face up to the facts,” said Yan Naiqiang, a professor of environmental science at Shanghai Jiao Tong University. “The treatment of smog will be a long fight. From now on, if we use buses or cars less and do more riding, we believe a clear sky is not a faraway dream.”
小题1: |
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小题2: |
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小题3: |
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小题4: |
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小题5: |
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小题6: |
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小题7: |
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小题8: |
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小题9: |
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小题10: |
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答案
小题1:C
小题2:B
小题3:A
小题4:B
小题5:D
小题6:C
小题7:A
小题8:C
小题9:D
小题10:B
解析
试题分析:这篇短文主要介绍了日益严重的雾霾天气给许多方面造成了影响,也影响着人们的健康。政府为了对抗雾霾开始采取措施治理空气污染。当然这是一个长期的过程,需要大家的共同努力。
小题1:考查名词词及语境的理解。高速公路被关闭,航班不能准时起飞。A马车B火车C航班D巴士。根据句意,故选 C。
小题2:考查动词及语境的理解。烟雾弥漫的天气从北到南影响着中国。A买得起B影响C崇拜D宣布。根据句意,故选B,影响。
小题3:考查固定词组及语境的理解。在一些地区人们仅能看清50米以内的东西。less than ,少于,不到more than多于,超过。根据句意,故选A。
小题4:考查介词及语境的理解。在过去几天像上海和南京这样的城市都被灰色的天空覆盖着。根据句意,故选B,像。
小题5:考查名词及语境的理解。许多街上的行人不得不戴着口罩。A帽子B手套C太阳镜D面具,口罩。根据句意,故选D,口罩,面具。
小题6:考查介词及语境的理解。因为阴霾在周六南京禄口机场的,60多个航班被取消。根据句意,故选C,因为,介词短语。
小题7:考查名词及语境的理解。这也使得在南京的中小学和幼儿园在周四和周五停课。A课B休息C工作D购物。根据句意,学校停止的是上课,故选A,课。
小题8:考查形容词词及语境的理解。广泛阴霾背后有几个主要的原因。most 大部分,main,主要的。形容词修饰名词,副词修饰动词,故选C。
小题9:考查代词及语境的理解。使雾难以消失的令人不快的天气情况,尾气,用于冬季取暖的煤。it代替动词不定式做形式宾语,故选D。
小题10:考查动名词及语境的理解。为了对抗污染,中国政府现在计划清理空气,主要通过减少煤炭使用,关闭一些工厂,和禁止600万旧汽车上路。A关闭,动词原形B关闭,动名词C打开,动词原形D打开,动名词。Bydoing sth通过做某事,根据句意,故选B,关闭。
核心考点
试题【BEIJING—The sky is gray and air smells strange. It’s another day of smog. On Sat】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Barbara hid her valuable things when she went on vacation. When she came back, she couldn’t remember where she’d put them.
Perhaps you’ve had such experiences like these. Most people have. But most of them haven’t realized that they have a memory problem. Neither do they know a simple but important fact: Memory can be improved. If you just accept that, the following will show you how.
First, relax. If you are over worried about something, you’ll forget it. If you keep telling yourself that your memory is bad, your mind will come to believe it and you won’t remember things. When you forget something, don’t follow up with saying like “Oh, my god! I always forget things! ” Such words will have a bad result on you and your memory.
But relaxing isn’t enough. To improve your memory, you’ll need to take an active role. Like your body, your memory can be made strong through exercise. Look for opportunities to exercise your memory. For example, if you’re learning a language, try to actively remember a lot of new words.
If you don’t take notice of things actively, you won’t remember them. So, you can make pictures of what you see in your mind every day. For example, don’t just put your keys down! If you want to find them again, make a mind picture of the place where you’re putting them.
小题1:The first two paragraphs just tell us ________.
A.examples of memory problems |
B.Barbara was a very rich person |
C.language problems of two persons |
D.Mark often forgot his friends’ names |
A.must be too careless |
B.must accept the fact |
C.shouldn’t lose confidence in your memory |
D.should keep telling yourself that your memory is bad |
A.chances | B.doctors | C.places | D.projects |
A.doing sports every day |
B.talking to your friends |
C.realizing your memory problems |
D.making mind pictures of what you see |
A.introduce the guest |
B.improve your memory |
C.remember new words |
D.forget unhappy things |
You probably know how to ride a bike safely. Now learn to use a computer safely.
![](http://img.shitiku.com.cn/uploads/allimg/20200119/20200119124000-73499.jpg)
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be more than 50 centimeters from the screen. Don’t forget to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on(反射)the screen. If the window is in front of you,the sun and the screen will both shine into your eyes.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something.
2) Keep your elbows(肘)as high as the keyboard.
3) Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you shouldn’t bend your back when you sit. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel(平行)to the floor. If you are sitting for a long time, get up every half an hour and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
Title: How to use a computer safely | ||
Different 小题1: of your body | Causes of the injuries | Some 小题2: of keeping you away from computer injuries |
Your eyes | ◆Too much light can injure your eyes | ◆Don’t sit too close to a computer screen. ◆Your eyes should be 小题3: 50 centimeters from the screen. ◆ 小题4: to look away from the screen sometimes. |
Your 小题5: and wrists | ◆You 小题6: them in the same way hundreds of times. ◆You use a keyboard for a long time. | ◆小题7: your wrists on something. ◆Keep your elbows at the same 小题8: as the keyboard. ◆Exercise your hands, wrists and fingers in different ways. |
Your back | ◆You sit for many hours 小题9: a computer. ◆ You sit in the wrong way. | ◆You should keep your back 小题10:when you sit. ◆Get up every half an hour if you are sitting for a long time. |
![](http://img.shitiku.com.cn/uploads/allimg/20200119/20200119123956-37719.jpg)
Legend said that Kaldi, an Ethiopian, found his goats happier while enjoying coffee plants. Curiously, he tasted the leaves and began to dance around. Whether the Legend was true or not, the discovery of coffee dates back to 800A. D. Soon Arabians were roasting coffee beans. Muslims were drinking coffee to stay awake by 1000 A.D. A merchant from Venice introduced coffee to Europe in 1615. By 1696, the Dutch started growing the coffee bush in Java. By 1723, coffee plants were introduced to the Americans. Today, coffee is the most popular drink in the world.
Caffeine is the major chemical in coffee. It blocks(阻止) adenosine, a chemical that makes you sleepy. People can get a pick-me-up or stimulation(刺激) from the drink. The stimulation does not last long. Caffeine poisoning can occur if more than 400 milligrams of caffeine is drunk in a short period, which is about four to five cups of coffee. Caffeine will also cause sleep difficulty, so it should not be drunk before bed.
Caffeine has many advantages. Studies have shown that it helps improve some skills in elderly women. Women who drank three cups of coffee daily scored higher on memory tests than women who drank one cup of coffee. According to newser.com, one cup of coffee a day protects the brain. Coffee also can help people keep away from many diseases according to webmd.com.
Large amounts of coffee can cause nervousness, worries and a fast heartbeat. However, if you mix coffee with milk, it’s fine. Caffeine can be addictive like any drug. The more you drink, the more you depend on it. For some people, just one cup of coffee a day is OK.
小题1:Who found the most popular drink in the world according to the Legend?
A.An Ethiopian. | B.Arabians. | C.Muslims. | D.The Dutch. |
A.In the 1710s. | B.In the 1610s. | C.In the 1690s. | D.In the 1720s. |
A.caffeine can make people sleepy |
B.adenosine can make people awake |
C.about four to five cups of coffee will cause sleep difficulty |
D.coffee is considered harmful if it is taken in a large amount |
A.the importance of coffee | B.the good effects of coffee |
C.the bad effects of coffee | D.the development of coffee |
A.drink it before bed | B.give up this bad habit |
C.drink one cup of coffee a day | D.drink more coffee than milk |
![](http://img.shitiku.com.cn/uploads/allimg/20200119/20200119123910-29046.jpg)
Cats have a pair of vomeronasal organs(犁鼻器) on the roof of the mouth. When the cat wants to sniff, she will breathe the air in through her mouth. At this moment, she will often squint(斜视) her eyes and maybe even flatten(使…平坦) her ears. This makes her look like she is making faces. The vomeronasal organs will then analyze the smell---almost as if the cat is tasting the smell.
When you come home from outside the house, your cat can smell what you had for lunch and for a mid-afternoon snack. She can smell the people you shook hands with and your neighbour you stopped to talk to and hug. She can smell the grass brought under your shoes as you took a shortcut across the lawn. Your cat’s sense of smell is so good that she can smell difference between a gallon of water with a teaspoon of salt in it and plain water. In comparison, we think of salt as completely tasteless.
Cats have scent glands(臭腺) on each side of the forehead, on the chin, the lips and next to the tail. When your cat rubs up against your hand, your leg, the sofa, and your bed, she is leaving her scent in those things. She will then use her sense of smell to recognize “her” things, people and even other pets in the home.
If you want to have fun with your cat’s sense of smell, take some small bits of different things, such as a bit of chicken, some flowers and some fish. Place each different scent under a piece of paper towel(so your cat cannot see any of them) and encourage your cat to investigate and find what kind of food she likes to eat best.
小题1:Cats know whether the food is fit to eat or not with their____________.
A.sense of touch | B.scent glands | C.organs of smell | D.sense of taste |
A.cats are very smart |
B.cats have a good sense as dogs |
C.salty water has a special smell |
D.cats’ sense of smell is excellent |
A.She puts her scent on it. |
B.She shows respect to you. |
C.She asks you to play with her. |
D.She smells where you were just now. |
A.Smell. | B.See. | C.Search. | D.Send. |
A.cats are one of our best friends |
B.cats have sharp sense of smell |
C.sense of smell is very important |
D.cats know if something is safe to eat |
Blood donation, also called blood banking, is a wonderful thing to do. It is an easy and direct way of making a contribution to social work and having a big effect on the community. It helps to save lives and helps those who are in need of blood because of bad conditions or the heavy loss of blood during operations or in accidents.
![](http://img.shitiku.com.cn/uploads/allimg/20200119/20200119123859-18396.jpg)
You are able to give or donate blood every three or four months. The doctors say it is not bad for your health. It is such a beautiful way of making a huge difference to someone’s life and you can always be proud of it if you make a valuable contribution to society. Blood donation is not a big problem, but you need to keep a few points in mind.
Before donating blood, make sure that the ferrum(铁) level in your body is high enough and for that you should take a healthy diet. Do not go for blood donation with an empty stomach. You should follow the correct process so that everything goes well. After having a balanced diet you will feel strong and comfortable to donate blood. You will not feel weak at the same time.
For required hemoglobin(血红蛋白) in your body, drink lots of juice and other drinks. Fruit juice, such as apple juice is very good for increasing the blood level in your body.
For a good blood flow(血流) in your body, drink at least 6-7 glasses of water every day. Completely avoid taking alcohol or caffeine a day before and after giving blood. Do not smoke cigarettes(烟) half an hour before giving blood.
When you are going for blood donation, be relaxed, which helps keep the right blood pressure(血压). During the blood donation activity, you can breathe deeply and try to calm yourself down. Don’t take part in some other activities.
When you donate blood, you are making the effort to save someone’s life. Blood donation is a very simple and fast process, but you need to take care of yourself after donating blood. Proper care helps to reduce side effects. The following are a few tips that will help you out.
Take a rest for 15 minutes after completion of the donation. It helps you to feel relaxed and energetic.
Eat something and drink juice before leaving the blood donation center. Make sure that you have meals after donating blood. Smoking should be prevented for one hour after the process. Don’t join in some activities at once, for example, driving.
Finally, be proud of yourself because you have done a great thing in helping to save someone’s life. Blood donation is a very important activity.
Title | Blood donation— an important activity |
The 小题1: of blood donation | Making contributions to 小题2: work and the community. Helping those people who suffer the 小题3: of blood. |
Before the donation | Take a healthy diet for a 小题4: ferrum level. Drink fruit juice for enough hemoglobin. Drink at least 6-7 glasses of water a day for a good blood flow. Avoid taking alcohol and 小题5: cigarettes. Never take 小题6: in other activities. |
During the donation | Relax and take a 小题7: breath. |
After the donation | Take a rest. Don’t forget meals. Don’t smoke 小题8: one hour later after the process. Never join in some activities 小题9: . Giving yourself a sense of 小题10: of it after making a valuable contribution to society. |
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