题目
题型：不详难度：来源：
Australian government researchers believe that sunlight is good for people’s eyes . They compared the vision （视力）and habits of 100 seven-year-old children in China and Australia .In all,30% of the Chinese children were short-sighted .This percentage was ten times higher than Australian children.
Both groups spent a similar amount of time reading, watching TV and playing computer games .However , the Australia children spent an average of two hours a day outdoors ,90 minutes more than the Chinese children.
Professor Ian Morgan said ,“Humans are naturally long-sighted ,but when people begin to go to school and spend little or no time outdoors ,the number of short-sighted peoplegets larger. We are also seeing more and more short-sighted children in cities all around the world –and the main reason may be that city children spend less time outdoors .
Daylight can be hundreds of times brighter than indoor light . But why does playing outside prevent us from becoming short-sighted ? Scientists believe that natural light has a special chemical（化学物质）which stops the eyeball from growing out of shape and prevents people from becoming short-sighted .
So go outdoors .It doesn’t matter if that time is spent having a picnic or playing sports .
根据材料内容选择最佳答案，并将其标号填入题前括号内。
小题1:What can reduce a child"s chance of becoming short-sighted according to the passage ?
| A．Playing computer games. |
| B．watching TV. |
| C．Reading books. |
| D．Spending 2 or 3 hours playing outside every day. |
| A．百分比 | B．功率 | C．平均分 | D．效率 |
| A．2 hours. | B．90 minutes. | C．1 hour. | D．30 minutes. |
| A．Why people become short-sighted. |
| B．Why natural light has a special chemical. |
| C． Why playing outside is good for one"s eyesight. |
| D． Why daylight is much brighter than indoor light. |
| A．People will all become short-sighted after they begin to go to school. |
| B．Playing outdoors for 2 or 3 hours every day can help protect your eyesight. |
| C． Children in Australia are more likely to become short-sighted than those in China. |
| D． lf you spend 2 or 3 hours playing outside each day, you will become short-sighted. |
答案
小题1:D
小题2:A
小题3:D
小题4:C
小题5:B
解析
小题1:细节理解题，根据文中语句“Spending two or three hours playing outdoors each day can reduce(减少)a child’s chance of becoming short-sighted（近视）,research shows .”理解可知。
小题2:词义理解题，根据文中语句“In all,30% of the Chinese children were short-sighted .This percentage was ten times higher than Australian children.
”理解可知。
小题3:细节理解题，根据文中语句“However , the Australia children spent an average of two hours a day outdoors ,90 minutes more than the Chinese children.”理解可知。120-90=30
小题4:理解归纳题，根据文中语句理解可知。
小题5:细节理解题，根据文中语句“Spending two or three hours playing outdoors each day can reduce(减少)a child’s chance of becoming short-sighted（近视）,research shows .”理解可知。
核心考点
试题【Spending two or three hours playing outdoors each day can reduce(减少)a child’s ch】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
In the city there are a lot of people and there are too many 40 running on the road. The gas which the car sends out is made up of(组成) bad gases. Every day we 41 it in and out. This makes us feel sick. There are many 42 , too. From the chimneys(烟囱) of these factories, we 43 get the smoke in black color. This kind of smoke is 44 to our health. So in order to keep us healthy, we have to go out to the 45 to breathe more fresh air. Or we can go up hills to get more fresh air.
小题1:A. because B. though C. so
小题2:A. life B. name C. pleasure
小题3:A. with B. without C. below
小题4:A. quiet B. tall C. healthy
小题5:A. dogs B. trains C. cars
小题6:A. breathe B. draw C. bring
小题7:A. animals B. people C. factories
小题8:A. usually B. never C. seldom
小题9:A. helpful B. dangerous C. necessary
小题10:A. office B. city C. Countryside
"There have been 21 warm winters in China since 1986," said scientists. They also said that in the past 100 years, as the global (全球的) temperatures went up by 0.74 °C , the temperature in North China has climbed 1.4 °C in only 50 years.
China needs to take quick action to cut carbon dioxide emission (排放)
because it"s the main reason for global warming. The good news is that China has seen the importance of going green. China set the goal of cutting energy use by 20% and pollution emission by 10% in the 11th Five-Year Plan.
Can you slow down global warming? Sure! You and your family can take steps to cut the amount of carbon dioxide that is sent out into the air.
Here are some pieces of advice to help you save the earth..
Wear used clothes. Wearing your brother"s, sister"s or dad"s old T-shirt means you save the energy.
Change your light bulbs (灯泡). Use energy-saving light bulbs. And don"t forget to turn off the lights when you leave a room and turn off your television and computer when they are not in use!
Ride the bus. Taking a bus saves a lot of oil every year.
Say no to plastic bags. The next time your parents go to the market, ask them to use baskets
Open a window. Don"t use the air conditioner, and let some fresh air in. When you have to use the conditioner, set the temperature higher in the summer and lower in the winter to save energy.
Make small changes in your daily life. Don"t use paper cups, bags and boxes.
It"s time for all of us to do something to save the earth.
小题1: How many pieces of advice are there in this passage?
A. Three. B. Four C. Five. D Six
小题2: Which of the following is true?
| A．It"s a pity to wear your dad"s old T-shirts. |
| B．Using air conditioners may be a waste of energy. |
| C．Taking a bus wastes a lot of oil every year. |
| D．Using paper bags saves energy a lot. |
| A．slow down global warming |
| B．make energy |
| C．change our daily life |
| D．change the world weather |
When you get tired of homework, several minutes’ walk in a nearby green park helps you relax at once. Or you may stand facing the lake or the sea. They’ll calm (not to be excited or nervous) you just like the green plants.
Wonder why? Color is a key part of the answers. Since it is so, green and blue help make people feel more quiet and safe.
All colors have special power. Scientists have found that many colors have specific effects (效果) on people’s minds and feelings.
Try an easy and interesting experiment and you’ll see how color “misleads” you sometimes. Wrap (包装) two boxes of the same size with colored paper, one red and the other white. Then weigh the two boxes with your hands. Which one is heavier? Most people will think that the red box is heavier, even though they weigh the same.
Colors can affect (影响) learning. Scientists have found that students spend more time reading if they read information written in blue text. Blue helps most people calm down and think more.
Smart (clever) uses of colors in daily life are to be seen everywhere. Hospital and libraries seldom (很少) paint their walls, tables and desks red. They use light colors, like light blue or green. Red makes people excited while light colors help them relax. Haven’t worked out how color affects your daily life? Start with your small room. Try to make some changes in it and you’ll get to know how important color is!
小题1:The underlined word “misleads” means ______
| A．affects |
| B．effects |
| C．causes someone to have a wrong idea |
| D．give wrong directions |
| A．light blue or light green |
| B．deep red or deep brown |
| C．deep orange or deep red |
| D．light green or light yellow |
| A．weigh something with your hands |
| B．study attentively |
| C．face the lake or the sea |
| D．enjoy some rock music |
| A．When you are going to have a rest, you’d better sit in the room painted green |
| B．Scientists have known some differences among some colors |
| C．When you get tired of homework, you should look at the green plants far away |
| D．The passage has told us clearly why some colors are warm and other are cool |
| A．the difference between red and white. |
| B．how to get on well with others |
| C．how to make smart uses of different colors in our daily life |
| D．how to paint and decorate our rooms |
Have you felt annoyed when a cell phone (手机)rings during the class? Something must be done to stop this. Now in New York City, USA, a rule is carried out（执行） in schools. Students can’t even bring cell phones to school. Is it a good thing or not?
Anxious（焦虑的） parents say that cell phones are an important tool in holding New York City’s families together.
“I worry about it,” said Elizabeth Lorris Ritter, a mother of a middle school kid. “It’s necessary in our everyday life. We have a washing machine, we have running water, and we have cell phones.”
A number of Americans think cell phones connect them to children on buses, getting out from subways, walking through unknown places.
“I have her call me when she gets out school,” said Lindsay Walt, a schoolgirl’s mother. “No one in New York is going to let their children go to school without a cell phone.
What about the cell phone owners, the students? Most of the students said that cell phones were necessary and the cell phone was like an extra(额外的)hand or foot for them.
“I feel so empty,” said May Chom, 14. “There is also no way to listen to music on the way to school without my phone. It will be a really, really boring trip.”
小题1:. Elizabeth Lorris Ritter is worried that ______________.
| A．students are not allowed to bring cellphones |
| B．students spend too much time in listening to music on the cellphones |
| C．students bring cellphones to school and they often ring during the class |
| D．no rule is carried out to stop students from bringing cellphones to school |
| A．Many | B．Some | C．Few | D．No |
| A．go to school without a cellphone |
| B．chat with her friends on the cellphone on the way to school |
| C．walk through unknown places with a cellphone |
| D．bring a cellphone to school |
to use a cellphone in school.
| A．importance | B．problem | C．happiness | D．impossibility (不可能) |
Some parents like having birthday parties 63 their children. If they go on doing so, the children will think they 64 enjoy birthday parties every year. They may forget their parents’ birthdays and only remember 65 .
Many parents don’t let their children do chores. They think children have only one thing 66 . They should study hard 67 be good at their lessons. If parents go on doing so, children will think their parents should do 68 and won’t like cleaning the floor or the desk 69 they find a job. Parents should teach children to do chores because it can make them 70 and help them like work.
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