题型:阅读填表 题类:常考题 难易度:普通
四川省师范大学附属中学2017-2018学年九年级上学期英语Unit 7 Section B同步习题
Do you clean your school desks every day? If not, then maybe it's about the time for you to get started. Keyboards, computer mice and telephone dials are infected (polluted) with lots of germs(细菌), according to scientists from the University of Arizona, the US.
The study suggests that office equipment should be regularly cleaned. “Desks are in fact germs' cafeterias(自助餐厅),” said Charles Garbage, a biologist who took part in the study. “They are breakfast bars, lunch tables and everything else.” The desks at your school are probably not different.
The scientists found that telephones in workplaces have almost 4,000 germs/cm2, keyboards 500 and computer mice around 250. The office as a whole contains 4, 750germs/cm2.
When some people catch a cold or flu, they leave germs on the surfaces(表面) they touch during the day. Some flu germs can live on the surface for up to 72 hours, so the germs can easily move to other people. If you're ever wondered why everyone catches the germs when only one student has a cold, now you know the answer.
Experts in the US last month warned about the spread(传播) of the germs during flu seasons. They reminded Americans to cover their noses and mouths while sneezing, often wash their hands and clean their office desks.
Hand washing is the most important. Killing germs during hand washing is useful only if you clean carefully with soap and water for at least 30 seconds. You should pay close attention to cleaning your thumbs, fingertips and fingernails.
The of the study according to scientists from the university of Arizona, the US. | is polluted with lots of germs. |
The to solve the problem. | We should clean our office facilities . |
The of the germs that the office contains. | The office as a whole contains |
What should you do when you catch a cold? | We should our noses and mouths while . We should wash our hands at least 30 seconds so that we can during flu seasons. |
We can learn from the text that it's important . |
Dear Jack,
Can you believe I'm in a school of 2030 now? The school is like a beautiful garden. The wall of our classroom is colorful. Our school life is interesting.
In the morning, we have three classes. We study on the Internet. We use the e-books. The teachers are all robots. They are in different rooms and they can answer any questions. Our robot music teacher plays the guitar very well. In the afternoon, we take a plane to the Mars to have two classes. I make friends with aliens(外星人). They are friendly and know us well. After class, we play soccer with them. Then we go back to the earth. Don't you think the life in this school is very interesting?
Mary
The school life in 2030 | {#blank#}1{#/blank#} | |
What to do | In the morning | They have three classes. They study on the {#blank#}2{#/blank#} |
The robot teachers can answer any questions. | ||
In the afternoon | They go to the Mars {#blank#}3{#/blank#} to have class. | |
Mary makes friends with {#blank#}4{#/blank#} aliens. | ||
After class | They play soccer with aliens. | |
Then they {#blank#}5{#/blank#} to the earth. |
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(紫外线).
Eating healthy food 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 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 also be helpful to a person's eyesight, too. In a word, eye care is very important, no matter how old a person is.
Title: How to protect your eyesight |
|
Causes of poor eyesight |
Pay {#blank#}1{#/blank#} attention to the importance of eye care. Not enough food. Genes and aging. {#blank#}2{#/blank#} TV, use computers and do reading too much. |
{#blank#}3{#/blank#}of eye care |
Stop to {#blank#}4{#/blank#} for a while when you work in front of the computer. Keep your eyes clean by using cold water. Protect your eyes from harmful things. Eat healthy food. Do eye exercises regularly. {#blank#}5{#/blank#} can also help you keep good eyesight. |
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