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题型:阅读选择 题类:真题 难易度:困难

浙江省温州市2021年中考英语真题试卷

阅读理解

Most viruses can be found and killed by our immune system as soon as they enter our bodies. However, some viruses, for example, the coronavirus, are sneaky. They are difficult to recognize and find. These viruses can cause deadly diseases, like COVID-19. Human-to-human transmission can easily occur, and pandemic will therefore break out. Vaccination is by now a simple, safe and effective way to protect us from the diseases.

   ▲   Vaccines are something that "looks" exactly the same as the viruses, mainly made from the viruses that are weakened or killed. They will not make us really ill. They only stimulate and activate * our immune system to work, telling it something harmful is coming in. The immune system will know what the "viruses" look like, and send B cells(lymphocytes) or antibodies to find and kill them. Meanwhile B cells will remember them for the next kill. A vaccine may also give us passive immunity by providing B cells taken from an animal or a human to play the same role.

Scientists have developed more than 180 vaccines to fight against COVID-19. The technical approaches of these vaccines can be a little different, but their aims are the same.

Take the inactivated vaccine as an example. In an inactivated vaccine, the coronaviruses are already killed or made into the ones unable to produce more new viruses. When the immune system "sees" them, it will try to kill them. The question is: without enough these viruses• how can B cells remember them? That's why we need to take the vaccine more than one time. Though this vaccine is safe, it might not be as effective as it is expected to be.

The live-attenuated vaccine is different. In this vaccine, the viruses are weakened, but they are alive. They can produce enough new viruses to train the immune system to kill and remember them, so people only need to take the vaccine once. The live-attenuated vaccine is considered the most effective, but there is a worry: what might happen once these viruses wake up?

Therefore, although vaccination is by now one of the best ways to protect us from COVID-19, it can be better.

(1)、The coronavirus can ___________________.
A、not be killed B、not be found C、cause deaths D、stop pandemic
(2)、Which of the following can be the best topic sentence of Paragraph 2?
A、Vaccination can provide us with B cells. B、Vaccines are made from different viruses. C、Vaccination can prepare us against viruses. D、Vaccines won't make us ill as the viruses do.
(3)、Compared to the inactivated vaccine* the live-attenuated vaccine _____________.
A、needs taking more than once B、is equally safe C、contains viruses that are killed D、is more effective
(4)、What can we learn from the passage?
A、Vaccination is good enough to treat COVID-19. B、The immune system can be more effective with vaccines. C、The viruses in inactivated vaccines can make new viruses. D、180 vaccines have been developed to fight against diseases.
举一反三
 根据短文内容完成句子,每空一词。

Do you like doing chores? Many kids do housework such as doing the dishes, making the bed and folding the clothes. In exchange(交换), they may get some money or computer time. Paying kids for housework is one of the most popular topics, especially at a time when everyone is more careful about money. Some parents think since adults are paid to do their jobs, we should pay kids for everyday housework. 

But some people don't think kids should get rewards(奖励)for doing housework Susie Walton, an expert believes that by rewarding kids, parents are sending a message that work isn't worth(值得)doing unless you get something in return. "Doing any kind of housework is a team effort," Walton said "A home is a living space for everyone in the family. It's important for kids to see that all families need to make decisions about how they want their home to look, and how they are going to keep it looking like what they want."

Other people believe that getting a reward encourages kids to do housework on their own, and that it also teaches them real world lessons about how we need to work to get money. Some groups invented an app that records kids' points and these points can be used to redeem(兑现)some gifs either online or in the real world. "Our goal is to help kids do their par and then they can get rewards," says Chris Bergman. "And kids need rewards to help encourage them."

 请从方框内选择适当的词并用其正确形式填空, 使文章完整连贯。注意每空一词,每词仅用一次, 有两词为多余项。

warm, give, she, wait, arm, happy, when, worried, on, spend, night, play

People always think that mother's love is the greatest love in the word. {#blank#}1{#/blank#}you are still a baby, mother takes good care of you as much as possible. In your waking hours(醒着的时候) , she always holds you in her {#blank#}2{#/blank#} . When you are ill, she stops her work right now to look after you day and {#blank#}3{#/blank#} and forgets about herself. When you are growing up day by day, she feels very {#blank#}4{#/blank#} . When you are old enough to go to school, mother still looks after you all the time. On cold winter days, she always tells you to put on {#blank#}5{#/blank#} clothes. She always stands in the wind and{#blank#}6{#/blank#} for you back from school. When you hurry to leave home for school with little breakfast, she always feels {#blank#}7{#/blank#} about you at home. She usually knows about your study and {#blank#}8{#/blank#} much money on your school things. When you do well at school, the brightest smile will be {#blank#}9{#/blank#} her face.

 Mother is always ready to {#blank#}10{#/blank#} everything to her children, not to receive. What true love that is in the world! We will remember Mother's Love forever.

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