Sitting on exercise balls brings more than a smile to students and teachers.Some

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Sitting on exercise balls brings more than a smile to students and teachers.
Some fourth-graders at Conrad Weiser West Elementary School in Womelsdorf love their new chairs-—probably because they"re not really chairs at all.
The kids are sitting on the air-filled balls. But different from those just for exercise, these have small legs that keep them from rolling. Sitting on a chair all day in school can make anyone want to move around. So, more and more teachers are letting students have a ball. By using exercise balls instead of common chairs, teachers find students" posture(姿势) and attention improved.
Dotti Pownall, a fifth-grader teacher in West Virginia, has been using balls as chairs since December 2008. "The students love them." she says. Pownall took a survey of her students. She found that 80 percent, thought sitting on the balls helped them concentrate(专注) better:
"Besides, they’re fun,b" says Pownall.
According to WittFitt,b a company that has sold balls to more than 200 schools, they can improve kids" posture and classroom behavior.
Exercise ball chairs are getting popular in classrooms, from preschool to college. Some adults (成人) even use them at work.
Lisa Witt felt so stro

ngly about the use of balls as chairs that she started WittFitt. She said the company not only encourages the use of balls but also educates teachers and students on how to use them. "We sell balls in 24 s

tates in America, three provinces in Canada and Japan." says Witt.
小题1:Sitting on exercise balls can______.

A．improve students" attention	B．make students smarter
C．keep students moving around	D．help students become fit

小题2:According to the passage, the company WittFitt______.

A．began to produce balls in 2008	B．sells balls in 24 countries
C．was set up by Lisa Witt	D．is famous around the world

小题3:It can be seen from the passage that ______.

A．exercise balls have no legs	B．Pownall works as a teacher
C．students hate exercise balls	D．exercise balls are filled with sand

小题4:The passage mainly tells us about______.

A．the shape of exercise balls	B．the use of exercise balls
C．the number of exercise balls	D．the inventor of exercise balls

答案

小题1:A
小题1:C
小题1:B
小题1:B

解析

【主旨大意】本文介绍了美国人发明的一种新型椅子—运动球椅的用处：这种椅子不仅能纠正学生的坐姿，而且还能提高学生的注意力，因此备受学生和老师的青睐。
小题1:细节理解题。根据第三段最后一句“By using exercise balls instead of common chairs, teachers find students" posture and attention improved.”可知答案选A。
小题1:细节理解题。根据最后一段第一句“Lisa Witt felt so strongly about the use of balls as chairs that she started WittFitt.”可知，Lisa Witt 创建了这家公司。
小题1:细节理解题。根据第四段第一句“Dotti Pownall, a fifth-grader teacher in West Virginia,...”可知， Pownall是一名教师。
小题1:主旨大意题。纵观全文，都在围绕运动球椅的好处这个话题来介绍的。

举一反三

Look closely at your hands. Are they clean? It doesn"t matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don"t worry. Most microbes don"t harm you.
Now scientists say the microbes on our hands cou

ld be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.
Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend"s hands.
When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don"t leave your fingerprints behind, your microbes may give you away.
Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can"t sterilize (使无菌

) a surface j

ust by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.
小题1:According to the passage,_______ could be used to identify the criminal.

A．fingerprints	B．scientists" hands
C．microbes	D．fingerprints and microbes on people"s hands

小题2:Paragraph 3 tells us that________.

A．our hands look similar	B．the microbes will make the keyboard dirty.
C．we should compare hands often	D．we have our own sets of microbes.

小题3:When you work on computer, the microbes________.

A．just stay on our hands	B．also stay on the keyboard
C．will do harm to you	D．will disappear

小题4:From Noah Fierer we know that________.

A．fingerprints are no longer useful in fighting crime

B．microbes can be found on everyone"s hands.

C．unlike microbe fingerprints can be cleaned if people wipe them

D．the microbe is used as a useful tool

小题5:What’s the best title of the passage?

A．Microbes May Tell Who You Are	B．Scientists Say Everyone Has Microbes
C．Noah Fiercer Does Research Into Microbes	D．Fingerprints Help Catch Criminals

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Many of us don’t pay much attention to the importance of eye care. It is said that if you take care of your body, then you can surely be healthy. That is why our eyes should be given a lot of care. Natural eye care should be put in a number one place.
There are several causes leading to poor eyesight like not enough food, genes (基因) and aging (老化). Televisions, computers and reading are also the causes of having poor eyesight.

If you happen to work in front of the computer, it is best to take a break every once in a while. Something dirty can cause redness and they will make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water. You must also try your best to protect your eyes from harmful things. For example, sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight form UV rays.
Eating healthy foods will do good to your eyesight. Remember that vitamins A, C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercises because exercise protects your eyesight, too. If a person exercises regularly (定期地) and eats

the right kind of food, his eyes will stay in good condition for a long time.
All above are natural ways of eye care that help us keep healthy eyes. Being happy all the time can be helpful to a person’s eyesight, too. In a world, eye care is very important, no matter how old a person is.
小题1:_____ is the most important way to protect our eyes.

A．Natural eye care	B．Taking medicine
C．Seeing the doctor	D．Being happy all the time

小题2:All the following causes can lead to bad eyesight except _______.

A．age

B．height

C．reading

D．computers

小题3: What should you do if you have to work in front of the computer?

A．Eat healthy foods.	B．Clean the eye by using cold water.
C．Wear a pair of sunglasses.	D．Have a rest after working for a while.

小题4:What do the underlined words “UV rays”mean?

A．沙尘

B．闪电

C．紫外线

D．超声波

小题5: Which is the best title of the passage?

A．Ways of Eye Care	B．Ways of Eye Exercises
C．Ways of Being Happy	D．Ways of Being Healthy

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Dear Mrs. Web

Dear Mrs. Web provides free personal advice and opinions for you. She receives and answers worldwide email questions. She will offer you some new suggestions on your problems, like study stress, disinterested friend … Dear Mrs. Web welcomes all questions and comments. You can receive the reply usually in 48 hours. Her email address is mrsweb@advice.com.

Help Line Volunteers
Every year thousands of old people are in need of our help. The Help line provides a heartwarming, helpful, kind support and information service for

the English-speaking aged people. We are in need of volunteers who are:
●      good listeners, warm-hearted and patient
●      excellent English speaker
●      can work 10 hours every day
Please call us at 0241-85902 or email us, helper@lineservice.com

Save the Earth C

lub

Earth club is for any student in Green School. Earth Club’s goal is to help keep the school, neighborhood, and city cleaner by encouraging recycling, highway clean up, and river, lake and school campus clean up. We hope to improve the environment and encourage others to do the same. We also meet to discuss some real solutions to saving the earth. Earth Club meets 2-4 times a month. Come and Join us!

The King Sweeper

My great, great grandfather invented the carpet sweeper 125 years ago. This King Sweeper is by far the best. I invite you to try it in your home. You’ll find it used daily in hospital, restaurants, offices and homes throughout the world. This is just the thing to keep your carpet soft, clean and fresh. Only for＄29.99!
We’re so sure that you’ll be delighted with the result of using our product.

Trendy Sunglasses

They can protect your eyes when driving, gardening or reading in the sun. it can make your life easier and happier, and make you look smarter!＄ 10.99 each or 2 for ＄19.99!
小题1:If you are not getting on well with a friend of yours, you can email for help.

A．Save the Earth Club	B．Dear Mrs. Web
C．Help Line Volunteers	D．The King Sweeper

小题2: Which of the following has the least chance to get help from Help Line Volunteers?

A．An old American farmer.	B．An old Chinese farmer.
C．An old English farmer.	D．An old Canadian farmer.

小题3:Save the Earth Club is _____ to help improve the environment.

A．a world club	B．a city club
C．a school club	D．a neighborhood club

小题4: If you buy a King Sweeper and two pairs of Trendy Sunglasses, you will save
_______.

A．＄10.99	B．＄1.99
C．＄19.99	D．＄2.99

小题5:Peopel who get help from Dear Mrs. Web or Help Line Volunteers______.

A．have to pay for it	B．have to help others
C．must be quite poor	D．needn’t pay for it

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MSG(monosodium glutamate) is a food additive(食品添加剂),which has been widely used by many food factories all over the world since it appeared first in Japan in 1909.
MSG is a substance that is added to some food to improve its original(原先的) taste and colour. It is used in foods around the world such as cakes, bread, frozen meats, fish and vegetables. In the beginning, people thought MSG was safe just like salt and sugar. However, in 1968 some people reported they seemed to have bad reactions(反应) to MSG after having had a meal at a restaurant. They included headaches and quick heartbeat(心跳).It was also reported that MSG excited a person’s brain and caused his death in Japan. Scientists think that MSG may lead to many

neurological disorders(神经紊乱).In mice studies done by a university, the evidence showed the mice didn’t want to eat the food including MSG.
Today many food companies “hide” MSG on food labels(标签) by using differe

nt names. If you see “natural flavorings”,“hydrolyzed protein”and “spices” in a food label, you are probably seeing a hidden way to “report” MSG in a food label. Every time we have a meal in a restaurant, we always feel the food very delicious to taste, but sometimes it is dangerous for our health because some poisonous food additives have been added to the food.
To protect people’s health,

our governments, from central to local, are taking actions to stop factories producing poisonous food additives.
小题1: Monosodium Glutamate is _______

A．a food

B．an additive

C．a factory

D．a country

小题2:MSG is often used in ______.

A．frozen meats

B．cups

C．clothes

D．book covers

小题3:The examples in the second paragraph tell us ________.

A．the food including MSG is delicious	B．people like to eat in a restaurant
C．mice like eating the food including MSG	D．MSG is not safe sometimes

小题4:If you see “natural flavorings”,“hydrolyzed protein” and “spices” in a food label, you will know _____________.

A．you must eat the food in a hidden way

B．the food label must be hidden

C．MSG is probably added to the food

D．you must report the food to your parents

小题5:The underlined word “substance” in the article means __________.

A．colour

B．material

C．taste

D．food

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In Chicago, a computerized system has been developed that controls(管理)traffic on the city’s 235 miles of seven expressways. Now one—a controller—can follow the movement of Chicago’s traffic by looking at a set of lights. The system uses electric sensors(感应器) that are built into each expressway, every half a mile. Several times a second, the computer receives information from each sensor and translates it into green, yellow or red lights on a map in the control room. A green light means traffic is moving forty-five miles an hour, yellow means thirty to forty-five miles an hour, and red means heavy traffic—cars standing still or moving less than thirty miles an hour.
“See that red light near Austin Avenue?”the controller asked a visitor.“That’s a repair truck fixing the road, and the traffic has to go around it.”At the Roosevelt Road entrance to the expressway, the light kept changing from green to red and back to green again.“A lot of trucks get on the expressway there,”the controller explained.“They can’t speed up as fast as cars.”The sensors show immediately where an accident or a stopped car is blocking the tr

affic, and a truck is sent by radio to clear the road. The system has lowered the number of accidents by 18 percent. There are now 1.4 deaths on Chicago’s expressway for each one hundred million miles traveled, while in other parts of the county there are 2.6.
Traffic experts say that the Chicago system is the “coming thing”.Systems like Chicago’s are already in use on some expressways in Los Angeles and Houston.“Chicago has taken the lead,”said New York City’s traffic director and he added,“Chicago’s a good example.”
根据短文内容，选择最佳答案，并在答题卡上按要求作答。
小题1:The passage is mainly about ________ on expressways in Chicago.

A．the traffic control system	B．the movement of the traffic
C．the electric sensors	D．the traffic lights

小题2:When the cars move under 30 miles an hour, ________ on the map in the control room.

A．the red light appears	B．the red light turns yellow
C．the yellow light appears	D．the green light turns red

小题3: According to the passage, we may learn __________.

A．some visitors are traveling on the expressway

B．there is no heavy traffic on Chicago’s expressways

C．the traffic on Chicago’s expressways is well managed

D．the number of accidents in the US has dropped by 18%

小题4:In Paragraph 2 the underlined word “it” refers to ___________.

A．the red light	B．the truck that needs repairing
C．the traffic	D．the truck that is fixing the road

小题5:The writer writes the article mainly by _________.

A．giving reasons and results	B．giving examples and explaining them
C．describing what he thinks	D．asking and answering questions

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