题目
题型：不详难度：来源：
Everyone wants to have healthy teeth. When you laugh, you will 1 your mouth and show your teeth. The healthier your teeth are, the happier you feel. Why is that?
It"s 2 your teeth are important in many ways. Take care of them, and they"ll help to take care of you. Strong, 3 teeth help you grow. They also help you speak clearly. You can take pate of your teeth by doing like these:
Brush your teeth 4 a day, after getting up and before bedtime. And you brush all of your teeth, not just the front ones. Spend some time 5 the teeth along the sides and in the back. Take your time while brushing. Spend at 6 three minutes each time you brush. Be sure your toothbrush is soft. Ask your parents to help you get a new toothbrush 7 three months. Clean between your teeth with dental floss(牙线).I t feels strange when you do it at first, but soon you"ll get used to 8 it. Brushing 9 your teeth healthy. You also need to care about what you eat and drink. Eat 10 fruits and vegetables and drink water instead of drinks.
Do you want to have white and healthy teeth? Please brush your teeth!
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答案
小题1:D
小题2:B
小题3:C
小题4:B
小题5:A
小题6:B
小题7:A
小题8:D
小题9:C
小题10:B
解析
小题1:根据上下文可知“张开你的嘴”。
小题2:because引导原因状语从句。
小题3:“强壮，健康的牙齿---”
小题4:根据after getting up and before bedtime知是 “一天刷两次牙”。
小题5:spend---on---是固定用法。
小题6:固定词组“至少”at least。
小题7:“每三个月”。
小题8:为避免重复下文的动词用do代替。
小题9:习惯用法keep sth. adj.
小题10:多吃水果和蔬菜，fruits and vegetables前用lots of。
核心考点
试题【Everyone wants to have healthy teeth. When you laugh, you will 1 your mouth a】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Mistakes choosing food
University kitchens serve(供应）many kinds of food. Some students choose unhealthy food，because now their parents are not nearby to help them choose. Some students visit the kitchen many times while studying. Late at night, some students get harmful fast food such as fish and chips with Coke to drink. Students also have less time for walking, running, and doing sports because of their schoolwork.
Eating right
If you，re careful, you don，t have to add fifteen pounds. Here are some ideas：
l Think more about what you eat.
l Eat plenty of vegetables and healthy meats.
l Don’t eat desserts full of sugar； have fruit after dinner.
l Try not to eat so much unhealthy food while you study.
l It，s all right to have a little fast food sometimes—but not often.
l Write down the foods you eat.
l Walk, run, do sports—move and you will feel better!
Remember that the “freshman fifteen” can happen to anyone. Talk to your friends about it. Together, try to eat healthy food and not to eat unhealthy food. Walking, running, and playing sports is always more fun with friends. Help each other and you can have a healthy and happy freshman year.
小题1:The “freshman fifteen” is ______.
| A．weight that high school students gain |
| B．weight that first-year university students can gain |
| C．fifteen pounds of food that first-year students eat |
| D．fifteen students who eat unhealthy food |
| A．get students ready to gain fifteen pounds |
| B．sell healthy food to new students |
| C．help new university students not to gain fifteen pounds |
| D．show the mistakes students make in studying |
| A．Choosing unhealthy food. |
| B．Visiting the kitchen while studying. |
| C．Getting fast food at night. |
| D．Eating too much chocolate. |
| A．You’d better not eat unhealthy food. |
| B．Not eating unhealthy foods is easier with friends’ help. |
| C．Gaining fifteen pounds can help you study better. |
| D．Some students can eat anything they want. |
Do NOT go outside. You could get injured from falling glass or parts of buildings. If you are outside, stay away from buildings and power lines(输电线).
Stay under a desk, table, or other strong furniture. Hold on to it. Or stay in a corner of the building. Cover your face and head with your arms and cover your mouth with a towel or clothing. Stay inside until shaking stops and it is safe to go outside.
Keep away from windows, pictures or advertisements on the wall or the building, and anything else that could fall and hurt you. Most people get injured by falling things during an earthquake, not by the shaking itself.
Also keep away from a fire. You could fall down and burn yourself on the fire.
If you are driving when an earthquake happens，stop the car if it’s safe. Stay inside your car until the earthquake stops, and don’t drive near bridges. Try not to stop by power lines or trees. These could fall and hurt you.
小题1:It isn’t safe for you to ______ while the earthquake is happening.
| A．run out of the building |
| B．stay in a corner of the building |
| C．cover your head with your arms |
| D．cover your mouth with a towel |
| A．all people are frightened at earthquakes |
| B．earthquakes may happen at any time |
| C．we can’t save ourselves in an earthquake |
| D．people won’t get injured in an earthquakes if they are careful enough. |
| A．How Earthquakes Happen |
| B．How to Drive a Car |
| C．What We Should Do in Earthquakes |
| D．Why Earthquakes Happen |
Look at the first picture. This empty box must fall over, because its center of gravity (C) is not above the line of its bottom (AB).
Now look at the second picture. There is some heavy iron in the bottom of this box. It will not fall, because its center of gravity is above its bottom.
小题1:If the bottom of an object is ______ its top, it will fall over easily.
| A．lighter than | B．heavier than | C．no heavier than | D．as heavy as |
小题3:The main idea of the passage is _________.
| A．why things fall over | B．a low center of gravity |
| C．a high center of gravity | D．that everything has weight |
Hu Yaohui, a schoolgirl in Zhejiang province, didn’t want to speak or eat for a week. She kept worrying about her scores on the exam. “I can’t stop thinking about my place in the class,” she said. “I feel stressed out.”
Hu is not the only one who faces stress. According to a recent survey conducted by Wuhan University of Hubei province, 70 percent of the 2,000 students who are going to take the college and high school entrance exams feel under pressure (压力).
Stress is a normal physical response (反应) to things that make people feel worried or break their balance of life in some way.
Stress isn’t always bad. Sometimes, people’s stress is important during emergency situations, such as when a driver has to stop his car to avoid an accident. Sometimes, stress can help people do their best — like while getting ready before a big competition or exam.
However, too much or long-term stress gives people a stress overload (负荷过多). People with stress overloads may have problems remembering or concentrating on things. They are quick to get angry or lose patience. They may even have other problems, such as sleeping problems, headaches and often getting colds.
The most helpful way to deal with stress overloads is to learn how to manage the stress. For example, you might manage it by getting a good night’s sleep, or by exercising every day.
Another good way to deal with stress is to ask parents or friends for help. Everyone has stress. For many people, stress is so common that it has become a way of life. Don’t be too shy to tell others that you are having a hard time. They may comfort you or give you some useful advice. Sometimes just sharing your problems with someone else can make you feel better.
小题1:Hu Yaohui felt stressed out about ________.
| A．her marks on the exams |
| B．which seat to take during exams |
| C．not being able to sit in the front |
| D．not being allowed to eat in class |
| A．nearly half | B．about 1,400 |
| C．almost seven hundred | D．about one seventh |
| A．Stress is a kind of serious heart disease. |
| B．Stress is always bad for people. |
| C．Stress is always useless for an exam. |
| D．Stress is greatly needed sometimes. |
| A．Many students face stress now. |
| B．People’s stress is always important. |
| C．How to get less stress |
| D．How to get good results with the help of stress. |
People used to believe that some people are born with a high IQ and some aren’t.
32 , a study by scientist at University College London has challenged（挑战）this idea. According to an article last October on the Journal Nature, scientists are beginning to think that our IQ is not a constant（不变的）score.
The scientists tested 33 healthy young people in 2004 between the ages of 12 and 16. Then they did tests again four years later, when the same people were between 16 and 20.
Scientists found big changes in the IQ scores between 2008 and 2004. Some 33 and some fell 34 as many as 21 points.
To test whether these scores were meaningful, the scientists compared them with results from brain scans（扫描）. They found that the IQ changes matched changes in the structure（结构）of the subjects’ brains. “A change in 20 points is a huge 35 ,” said Professor Cathy Price, who led the research. He said it could mean the difference between an average and a 36 person. The team has not found a clear cause for these changes. However, they say it is 37 that education plays a role in changing IQ.
“Here we have shown that children’s 38 is likely to be still developing, ” says Price. “We have to be careful not to write off 39 performers at an early stage. In fact, their IQ may improve in a few more years. ”
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