Smartphone ,poor sightLook around and you’ll see people busy on their smartphone

Smartphone ,poor sightLook around and you’ll see people busy on their smartphone

题型:不详难度:来源:
Smartphone ,poor sight
Look around and you’ll see people busy on their smartphones. Smartphones do make our lives easier . But have you ever thought about what they mean to you eyes?
According to a study ,half of British people own smartphones and they spend an average of two hours a day using them . There has been a 35% increase in the number of people in the UK who suffer from shortsightedness since smartphones were introduced there in 1997.
Staring at smartphones for long time gives you dry eyes. When looking at something in the distance ,your eyes automatically blink a certain number of times. However ,when you look at things closer  to your face ,the blinking slows down . This reduces the amount of tears and causes discomfort in your eyes. Another bad habit is using  smartphones in dark rooms before going to sleep . If you look at a bright screen while your pupils become larger ,too much light enters your eyes. This can do harm to the eyes and cause a disease called glaucoma.
While you’re probably not going to stop using to your smartphone,there are a few things you can do to protect your eyes. Hold  your phone at least 30 continues away from your eyes when using it. Take a break every hour and try the following :look at something at least five meters from you and then focus on the tip of your nose. Repeat this several times. It should reduce the discomfort in your eyes.
答案

小题1:B
小题2:C
小题3:D
小题4:A
小题5:D
解析

试题分析:短文大意:本文主要介绍了使用智能手机的危害,告诉我长时间使用手机会引起眼睛干涩和青光眼。并建议我们连续使用手机不超过一个小时。
小题1:主旨大意题。根据短文标题Smartphone ,poor sight及下文描述,可知这篇短文主要讲述的是智能手机对我们眼睛的伤害。故选B。
小题2:细节理解题。根据There has been a 35% increase in the number of people in the UK who suffer from shortsightedness since smartphones were introduced there in 1997.描述,可知自从1977年以来越来越多的英国人收到了手机的危害。故选C。
小题3:细节理解题。根据Staring at smartphones for long time gives you dry eyes. 及下文This can do harm to the eyes and cause a disease called glaucoma.描述,可知使用智能手机只要是能引起眼睛干涩和青光眼。故选D。
小题4:细节理解题。根据短文最后一段Take a break every hour and try the following 描述,可知一生建议我们,每使用手机1小时就休息一下。故选A,使用手机不要不休息地超过一个小时。
小题5:主旨大意题。阅读短文可知本文主要介绍了使用智能手机的危害,并向人们介绍了如何恰当使用手机的建议。故选D。
举一反三
There are many kinds of pollution around us,          air pollution, soil pollution, noise pollution and light pollution. They are bad         our health in many ways.
Burning gas, oil and coal creates air pollution. It can cause sore eyes and          problems.
With the increase of pollution and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of rubbish in the land. Farmers use too many         in the fields. They destroy the soil. So soil pollution has become serious.
Noise pollution can make people        . For example, people may lose their hearing if they work in a         place for a long time. Too much noise can cause high blood pressure         .
Working for a long time in strong, changeable light        cause some kinds of illnesses. It makes people feel         and is especially bad for the eyes.
With        pollution, our planet will become greener and our health will be better. Let’s be greener people.
小题1:
A.such asB.for exampleC.such likeD.as well as
小题2:
A.toB.inC.forD.at
小题3:
A.breathsB.breatheC.breathedD.breathing
小题4:
A.chemicalB.chemicalsC.chemistryD.chemistries
小题5:
A.blindB.lameC.blackD.deaf
小题6:
A.noiseB.noisyC.noisilyD.noises
小题7:
A.as wellB.tooC.eitherD.also
小题8:
A.mustB.shouldC.mayD.need
小题9:
A.terribleB.comfortableC.terriblyD.comfortably
小题10:
A.littleB.a littleC.lessD.fewer

题型:不详难度:| 查看答案
Many of us don’t pay attention to the importance of eye care. It’s said that if you take care of your body, then you can 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, gene(基因) and aging(年龄增长). 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 rest 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 thing. For example, sunglasses are not just fashion but they can also serve as a great way to protect your eyesight from UV rays.
Eating healthy foods will do good to your eyesight. Remember that vitamins(维生素) 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(规律地) 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 word, 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 careB.Taking medicine
C.Seeing the doctorD.Being happy all the time
小题2:All the following causes can lead to bad eyesight except _________.
A.ageB.heightC.readingD.computer
小题3: What should you do if you have to work in front of the computer?
A.Eat healthy foods.B.Clean the eyes 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 under words “UV rays” mean?
A.沙土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 CareB.Ways of Eye Exercises
C.Way of Being be HappyD.Way of Being Healthy

题型:不详难度:| 查看答案
(1)
Books                                  Contents

Leo the Snow Leopard
By Craig Hatkoff
It was written by the best story-teller. The  story is about Leo, a young snow leopard(雪豹) that was helped by a kind man in the snowy mountains in Pakistan. Snow leopards are in danger. Leo was just two months old when he was
found and he could not live in the wild on his  own.

Where Do Recyclable
Materials Go
By Sabbithry Persad
Tiana has been learning about recycling at  school. But after her dog, Bubbles, gets lost
chasing after a recycling truck, she decides to learn  a lot more about recycling! Following Tiana,
readers will learn how to take care of the environment.

The Scrap Kins Build
By Brian Yanish
Meet the Scrap Kins. They are friendly monsters. In the book, they’ll show you how to turn rubbish into some pretty cool things. Readers will learn how to make toy planes from plates,
bags, old clothes and more. You know what they say: One person’s rubbish is another person’s love.

Explore( 探索) Life
Cycles ! By Kathleen
M. Reilly
Do you know the largest seed( 种子)in the world or an egg can weigh up to 4 pounds? You ’ll learn about all of these things and more with the latest book in the Explore Your World series( 系列). The books give readers a good look into the
life cycles of plants and animals on the Earth.
 
小题1:How old was Leo when he was found?
A.Four months old.B.Two years old.
C.Three months old.D.Two months old.
小题2:If Jim is interested in making toys from rubbish, he will probably
like to read______.
A.Leo the Snow LeopardB.The Scrap Kins Build
C.Where Do Recyclable Materials Go?
D.Explore Life Cycles!
小题3:The four books are all about______.
A.nature and the environment
B.monstersC.animalsD.plants

题型:不详难度:| 查看答案
A 15-year-old student who invented a flashlight(手电筒) getting power from the holder"s body heat is going home today from California with a big prize and a chance to do further research.
Ann Makosinski was the only Canadian among the four winners at Google"s international science competition. Thousands of young scientists from around the world took part in the competition.
Winning the science and technology competition was "a surprise". Ann said, "I think it will have a great influence on my future."
Ann thanked her family for encouraging her interest in science and said that her first toy was a box of transistors(晶体管).
Ann"s prize includes $ 25,000 and a "once in a-lifetime expericnce" from Google for her Hollow Flashlight, which has no moving parts or batteries.
The idea for the invention came from seeing unwanted batteries and her friend"s experience. When Ann visited a friend in the Philippines, she saw the friend couldn"t study when it became dark because there was no electricity or light. She saw the need for a flashlight that has no batteries - Hollow Flashlight.
In her project, Ann wrote "I made two flashlights that do not use any batteries or harmful materials. They do not create any noise and will always work. The flashlight needs at least a 5℃ temperature difference between the holder"s body and the environment around to produce light."
A video of Ann explaining how she creatcd the flashlight has been watched more than 1.4 million times on the Internet.
Though Ann was successful, she has not made a decision about her career path. Ann hopes that she can find a way to join her love of film and science together.
The four winners were chosen from 15 final competitors from eight countries. The competition attracted thousands of students in 120 countries.

小题1:In which part of a newspaper can we probably read this passage?
A.Travel.B.Culture.C.Technology. D.Advertisement.
小题2: The first paragraph is written to be a(n) ________.
A.introduction B.warningC.argumentD.discussion
小题3:Paragraph 6 mainly tells us ________.
A.what Ann saw in the PhilippinesB.why Ann invented Hollow Flashlight
C.how Ann"s family encouraged her interestD.what prize Ann got for Hollow Flashlight
小题4:According to the passage, we learn ________.
A.easy to win the international science competition
B.Hollow Flashlight is safe, noiseless and can save energy
C.Ann has made a decision to be a scientist in the future
D.few people are interested in how Ann created the flashlight

题型:不详难度:| 查看答案
Better think twice before choosing a password for e-mail, online bank or shopping. Simple passwords are easy to be stolen.

A password is like a key to your home. If someone steals it, he’ll get chances to steal something else. We use passwords everywhere in our life. We are so used to passwords that we don’t pay any attention to them until we lose or forget one.
A study of 28,000 passwords recently stolen from a popular website showed that people often do the easy thing. It found that 16 percent took a first name as a password. Another 14 percent used the easiest keyboard combinations such as “12345678” or QWERTY. Five percent of the stolen passwords were names of television shows or stars popular with young people. Three percent of the passwords expressed feelings like “I don’t care,” “Whatever,” “I love you,” or their opposite, “I hate you.”
Robert Graham, who did the study, advises people to choose a password that is longer than eight characters with one capital letter(大写字母) and one symbol.
Of course, safe passwords don’t mean those hard to remember. Forgetting your password is sometimes a big headache for you. Maybe, the perfect password is easy for you and hard for others.
小题1: The underlined word “password” in Paragraph 1 means __________.
A.标志B.护照C.密码D.口诀
小题2:About 40% passwords are easily stolen because the users are ______.
A.busyB.lazy C.stupidD.careful
小题3:Which of the following passwords is considered the safest?
A.ZXCVBN.B.password56.C.wy64#0Mv.D.I hate you.

题型:不详难度:| 查看答案
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.