Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember 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 at the same height as the keyboard. 3) Stop something 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 should sit with your back straight. The top part of the screen should all 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 30 minutes and exercise your arms, legs and necks.
Enjoy your computer, but use it safely.A computer screen may injure your eyes if __________.
A. you sit 60 centimeters away
B. you remember to look away
C your eyes are too close to it
D the window is on your left or your rightHand and wrist injuries are caused when you _________.
| A．get plenty of exercise |
| B．move in the same way again and again |
| C．rest your wrists on something |
| D．keep your elbows as high as the keyboard |
Your eyes and hands will be safe if __________.
| A．you work near a window |
| B．you often take a rest from working |
| C．you use a keyboard for a long time |
| D．the window is behind you |
It is good for your back and neck if you sit __________.
| A．in the right way |
| B．for many hours |
| C．with the screen below your eyes |
| D．with your back leaning forward |
What would be the best title for the passage?
| A．How to protect your eyes. |
| B．How to protect your hands and wrists. |
| C．How to use a computer safely. |
| D．How to protect your back. |
| Beijing Opeara Do you like Beijing Opeara? Come and enjoy yourselves at 8:30 on Sunday night. Ticket：Adults: 40 yuan; Children : half the price of the adult’s Place: Green Theater |
Rock Concert Are you a rocker ? We will rock you at 7:00 on Saturday night ! Don’t miss it ! Ticket: Adults—— 100 yuan Children: half the price of the adult’s Place : Vox Theater |
| Lecture Dr Wong will give a lecture about American country music. If you are fans of Taylor Swift. Come at 4:00 on Sunday afternoon. Ticket :Free Place :Green Hall |
Mozart If you like the piano, if you ever heard about the Magic Flute, then don’t miss the film Mozart in Moon Theater at 2:00 pm on Saturday. Ticket : Adults——70 yuan Children—— 30 yuan |
Jack’s grandfather likes Beijing Opera . He will go to __________ .
| A．Green Theater | B．Vox Theater |
| C．Green Hall | D．Moon Theater |
The Rock Concert is on __________ .
| A．Sunday night | B．Sunday afternoon |
| C．Saturday night | D．Saturday afternoon |
Taylor Swift might be the name of __________ .
| A．a concert | B．a lecture |
| C．a singer | D．a rock star |
Mozart begins at __________ .
| A．8:30 pm | B． 7:00 pm |
| C．4:00 pm | D．2:00 pm |
Mrs Smith with her seven –year-old son goes to Moon Theater. She should pay __________ .
| A．nothing | B．60 yuan |
| C．100 yuan | D．150 yuan |
If you want to eat some Indian food, you can go to ________ .
| A．Fenfang Restaurant | B．Rose Society |
| C．Flora’s Kitchen | D．Millie Chen’s |
You can call ________ if you want to have a taste of Southern home cooking.
| A．54-0305-1122 | B．50-4525-8898 |
| C．50-3346-9997 | D．50-4822-2342 |
You can eat some ________ food in Flora’s Kitchen.
| A．Italian | B．Chinese |
| C．Japanese | D．Indian |
The latest business hour lasts until _________ among the four restaurants.
| A．2:00 a.m. | B．3:00 a.m. |
| C．3:00 p.m. | D．10:30 p.m. |
You can have _______ choices if you want to have dinner at 6:00 p. m. on Saturday evening.
| A．one | B．two | C．three | D．four |
Where do you think people will live in the future? Can you predict people will work and live in the sea? But how will people go to work then? By submarine!
Some scientists believe that some day submarines will be as many as today’s cars. A famous French driver says, “ One day, man will work on the ocean floor as they do on the street!”
If people want to live in the sea, they have to solve a lot of problems first. Some of these problems, similar to those of living on the moon, are lack of oxygen (缺氧) and weightlessness (失重). Many questions are hard to answer. For example, what will happen to our bodies if we live in the sea for a very long time? Scientists are looking for answers.
Maybe in 50 years man will be able to live in the sea, away from the crowded and noisy cities on land. Man will find it fun and interesting to live in the sea. And life in the sea is more comfortable. Don’t you think so? Maybe people in the future will __________ to work on the ocean floor.
| A．drive a car | B．take a bus |
| C．take a submarine | D．swim |
People have to _________ first before living in the sea.
| A．build houses | B．learn to swim |
| C．learn to drive the submarine | D．solve some problems |
What problem will people have if they live in the sea?
| A．They will have difficulty in breathing. |
| B．They will become quite short. |
| C．They will feel cold. |
| D．They will feel tired. |
The writer thinks living in the sea is _________ than living on land.
| A．more comfortable | B．less comfortable |
| C．easier | D．more crowded |
Which is NOT true according to the passage?
| A．There are also some problems for people to solve if they want to live on the moon. |
| B．The sea is noisy and crowded for man to live in. |
| C．Some of the problems are very hard to solve. |
| D．Some scientists believe submarines will be popular in the future. |
What will you do if you're not sleepy? 5hould you still go to bed if you are just going to Iie there with your eyes wide open?
It's a1ways a problem that some people find it hard to go to sleep.
You might be excited by everything you did that day. You might be excited for what you know you're going to do the next day. Maybe you can't sleep because you don’t like sleeping all alone in your room. Maybe you have a nightmare that keeps coming-back every time you close your eyes.
All of these feelings are normal.
One thing that can help is talking to a parent about what you're thinking about. If you're nervous about something; it can be really helpful to tell somebody. Knowing that somebody has heard you can help your thoughts rest so that you can rest, too. If anything in your room makes you feel uncomfortable at night ，like a strange picture or a broken window, be sure to ask one of your parents if it can be moved or fixed.
Another idea could be getting ready for bed earlier than usual. You can relax by taking a warm bath, or listening to a bedtime routine at least 30 minutes before you go to sleep.
1t is also good to keep your bedtime routine (惯例) and time the same every night. By keeping it the same, your body will get the message that it's almost time to sleep.
It's important not to give up just because one solution didn't work and you're still awake. Just trying to find out what's wrong may be enough to make you so tired that you wake up the next morning without knowing how you fell asIeep.
So even if you run out of ideas, you might still have a restful and good night.1s it a problem that some people find it hard to go to sleep?
What can be helpful if you are nervous about something?
How can you relax before you go to sleep?
Why is it good to keep the bedtime routine and time the same every night?
What is the passage mainly about?
Garry Golden is a futurist. Futurists are scientists who analyze the way the world is today and use that information.to predict what the world will be like in the future. Golden focuses on the study of transportation. He spends his days studying the relationships between cars, subways, and trains. But he's most excited about imagining the way these relationships will change in the future.
Many public transportation supporters dislike big cities because they spend hours driving from one side of the city to the other. And there aren't enough buses and. subways.
However, Golden sees a trend (趋势) toward fewer cars' in the future. He explains, "Cities have a cost of car ownership, which is a challenge. All these vehicles cost the city in services, in having to repair roads and other things. "Cars also take up a lot of space.
Golden points out that having so many parking spaces is wasteful. Much of the time the parking spaces
sit empty. What is the solution?"I think cities will make new laws to limit the number of cars people can have ，" says Golden. "Instead, people will use taxis, subways, and buses. New technology, like smartphones, can make these forms of public transportation even better. Imagine if everyone had a smartphone and used them to signal(发信号) when they wanted to ride the bus. Buses could change their route(路线) to meet people's requests."
How soon would these changes come? Golden admits that it will take several years. Cities can be slow to change. Also, new systems of transportation can be expensive. "But it's coming," he says. "The trend of the empowered city will be here soon. "
The other trend that excites Golden is electric cars. Golden especially believes in the future of electric cars that have sensors(传感器) to understand the world around them. "If we have cars that can communicate with one another, they can adjust speeds to cut down on traffic jams,"he says. Rush hour in big cities would be much less painful.
One challenge is that it is hard to cheaply produce batteries that are strong enough for these cars. But Golden argues we could, also make cars out of strong plastic composites(合成物). The cars would then be much lighter and much cheaper to make.
Golden remains positive about the future. "There are so many exciting developments ，"he says. "In thirty years we will live a different world. "What does Garry Golden mainly study?
| A．The changes of future transportation |
| B．What cars will be like in the future. |
| C．How the world .is different from today |
| D．The relationships between cars and people. |
Why does Golden see a trend toward fewer cars in the future?
| A．-Because cities-take up a lot of space. |
| B．Because cars cost too much of the city |
| C．Because people prefer to take the subway |
| D．Because roads are sometimes too crowded. |
Which of the following statements is true according to Golden?
| A．New buses will take the place of cars as a way of transportation. |
| B． Electric cars with sensors will be able to put an end to traffic jams. |
| C．Future cars could be lighter because of strong and powerful batteries. |
| D． Future buses can receive signals and change their routes accordingly: |
What is Golden's attitude to the future of transportation?
| A．Uncertain. | B． Worried. |
| C． Hopeful. | D． Careful. |
粤公网安备 44130202000953号