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题型:阅读理解 题类:常考题 难易度:困难

外研版初中英语七年级下册精彩练习专题训练专题四阅读理解

阅读理解

What is the firstthing you want to do when you see someone yawn(打呵欠)?You want to yawn, too! Yawning iscontagious.

Scientists have foundthat all people yawn. Babies start to yawn even before they are born. When ababy is inside its mother, he or she yawns. When young children are about oneyear old, they start to yawn when they see others yawning. That's why scientiststhink yawning is contagious.

But why do we yawn?Well, scientists are not really sure. Some think we yawn because we feel bored.Others believe yawning has something to do with breathing. When there is toomuch carbon dioxide (CO2) in our bodies. our bodies will tell the brains(大脑)to breathe deeply. That causes a big yawn.In 2007, scientists said people yawned to cooldown their brains. Thesescientists found people yawned more often if they were warmer than others.

Scientists are tryingto find out why yawning happens and why it is so contagious. But they are onlysure that when one person yawns. everyone else nearby wants to yawn, too.

(1)、The underlined word "contagious" in Paragraph 1 means "________" in Chinese.
A、神秘的 B、疲倦的 C、可传染的 D、有帮助的
(2)、According to the passage scientists are not really sure about ________.
A、when people start to yawn B、whether all people yawn C、whether yawning is contagious D、what makes yawning happen
(3)、Which of the following may be the reasons for yawning according to the passage?

①People yawn because they are bored.

②People yawn to make them look funny.

③People yawn to cool down their brains.

④People yawn to cut down carbon dioxide in their bodies.

A、①③④ B、②③④ C、①②③ D、①②④
(4)、We can probably read this passage in a(n) ________.
A、storybook B、sports news C、science magazine D、email
举一反三
 阅读下列短文, 从给下面每小题做给的A、B、C、D四个选项中, 选出最佳选项

Are you at a new school? Being a new student can make you worried at first, but if you are afraid of it too much, you can't live a happy school life. Here are different ways to get along with your classmates, from joining in after-school activities to starting a conversation(交谈) in class. Here are some tips to help you make new friends at school.

Introduce yourself to people first. Start by offering your name first. A basic introduction is a great way to put yourself out there. You might also talk about something that you are good at. For example, if you say you are good at playing the piano, someone may want to learn more about the piano.

Give a hand to a classmate in need. Helping a classmate is a good way to make friends. You might help someone pick up the notebooks they dropped or let someone borrow a pencil. Being kind is a great way to make friends with others, such as offering part of your lunch to someone who forgot theirs or offering to read textbooks together with someone who forgot to bring theirs.

Keep your eye out for classmates with same interests. Look at your classmates' interests and activities. Do you see someone reading your favorite book or wearing a T-shirt of your favorite color? These common interests can help you find people you' re more likely to get along with.

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