题型：阅读选择 题类： 难易度：普通
贵州省遵义市2023-2024学年九年级上学期期末学业水平监测英语试卷
What happens if you swallow gum(吞口香糖) by accident? You might have heard that gum stays in your stomach for up to seven years. But is that true? Beth Czerwony, a doctor at Cleveland Clinic, will explain what really happens when a piece of gum makes its way into your stomach.
Is it bad to swallow gum?
Swallowing one piece of gum every now and then isn't likely to do any harm. But you shouldn't make a habit of swallowing gum, as that can do some damage.
Gum base is largely synthetic(人工合成的). It's nondigestible which means your body can't break it down like it does other foods." So it just stays in your stomach all the way through," Czerwony explains.
Does gum stay in your stomach for seven years?
Don't worry: Gum doesn't stay in your stomach for seven years or even seven days.
" If you' ve swallowed a piece of gum, it' ll come out about 40 hours later in your stool(粪便)," Czerwony says." Because it can't be digested, it comes right out whole."
When should you go to your doctor?
Swallowing one piece of gum probably won't hurt you, but beyond that, be careful. Dr. Czerwony warns that too much at a time can cause an intestinal blockage(肠道阻塞)." Anything you eat after that isn't going to be able to get through, which leads to pain and pressure." she says.
A.Who gets the flu？ B.How to keep us away from the flu？ C.What is the flu？ D.When did the flu first appear？ E.Why is the flu dangerous？ F.What is the difference between the flu and a cold？ |
Flu season is coming!Are you prepared？Here are answers to your question!
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The flu is a virus（病毒） that passes easily from person to person.Usually the flu appears in winter and the rainy season.
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In fact，they come from different viruses.Although the symptoms（症状） can be almost the same，flu symptoms are more serious.Cold symptoms only last about seven days while the flu can last two weeks.
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The seasonal flu is very common all over the world.Children，old people and people in poor health catch the flu easily.In the United States，five to twenty percent of the people pet the flu every year.
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The flu is pretty dangerous.It can give you fever（发烧） or even make you die.Every year in the U.S.，36
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There are many things you can do to keep healthy and stay away from the flu.For example，wash your hands often.Moreover，don't touch your eyes，noses or mouth with your dirty hands.
Bob is often late for school because he always gets up late. This makes his teacher mad. He needs to buy something to wake him up in the morning. {#blank#}1{#/blank#} Tim likes listening to music. And he has to send e-mails to his customers every day. He wants to buy something that can help him. {#blank#}2{#/blank#} Summer has come. Tony is fat and he can't sleep well on such hot days. This troubles him a lot. He'd like to buy something to make him feel cool. {#blank#}3{#/blank#} Alice often washes her hair late at night. It is often wet when she goes to bed. She is going to buy something that can dry her hair in a short time. {#blank#}4{#/blank#} Susan is a housewife. She has to do the washing for her family every day. She gets tired of it. She is in need of a product to do it for her. {#blank#}5{#/blank#} | A. This electric product can make you cool during the hot days. It can help you change the temperature and control the humidity(湿度) of your room. B. You can do many things with this product, such as sending e-mails, playing games and so on. You can also listen to music with it when you want to relax. C. This electric product is useful to all of us. People often have one at home. It is often put up on the wall. If you want to know the time, just take a look at it. D. This can help you wash your dirty clothes and dry them. What you need to do is to turn it on and later hang the clothes on the line. With this electric product, life will be a lot easier for you. E. Each family needs this product. You can use it to store food and medicine. It can keep them cool and fresh so that they will not go bad easily on hot days. F. It is a very helpful product which tells you the time. It can wake you up with a piece of music at any time you want, but you have to set the time first. G. When you wash your hair, you need this product. It can make your wet hair dry in a minute. It can also be used for drying your wet clothes or some other wet things. |
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"Rock, paper and scissors" is a typical game which gave us {#blank#}1{#/blank#} memory in our childhood. It is said that people played it about 2, 000 years ago in China. Today, people play it {#blank#}2{#/blank#} the world. In Indonesia, it's known as"ant, person, elephant". People use different hand {#blank#}3{#/blank#} in different countries. But the instruction of the game is the same all over the world.
Many people think"rock, paper, scissors" is all about luck. But the game is not always accidental. A 2014 study in China {#blank#}4{#/blank#} two key patterns in the way people played. The fact is that winners always{#blank#}5{#/blank#} their winning hand gestures.
So what's the best way to win this game? Expert players not only think about their next move, but also what their players' next move might be.
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