题目内容
（请给出正确答案）
This passage(短文)tells us something about ______.
A．American colleges and universities
B．American families
C．American young people
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更多“This passage（短文)tells us somet…”相关的问题
阅读下列短文，然后根据短文的内容从 55～57 小题的四个选择项中选出最佳的一项。
B
Scientists have searched for many years for a method to tell whether a volcano（火山）explosion will be small or large. Now，four scientists say they have discovered something in lava（熔岩）that will help do this. They did the research on Mount Unzen on the southern Japanese island of Kyushu.
Mount Unzen exploded in November，1990. Since then，more explosions have killed 43 people and destroyed the homes of more than 2，000 others. The volcano is still active today.
The scientists say the lava of the volcano contains high level of an element（成份），which is a sign of the presence of the lava from deep in the earth，not from the surface. They say it shows that the lava coming directly from inside the earth is connected with huge explosions instead of smaller ones.
The scientists examined the lava from 18 explosions of Mount Unzen that took place during many thousands of years. They also studied the lava from other volcanoes in the area that are older than Mount Unzen. The lava studied came from both large and small explosions. The scientists found that large explosions contained more of the element than small ones. The scientists say if they had known this two years earlier，they could have warned the people living in the area near Mount Unzen and saved many lives.
第 55 题 From the passage we learn that Mount Unzen is the name of ______.
A．a huge volcano explosion
B．a Japanese island
C．an active volcano
D．a kind of lava
Reading Comprehension(阅读理解) Passage 4 Look closely at your hands. Are they clean？ It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you. Now scientists say the microbes on our hands could be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to identify the criminal. Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands. When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away. Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌) a surface just by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool. 根据短文完成1-5题，在空格处填写正确选项的字母。 1. According to the passage,_______ could be used to identify the criminal. A. fingerprints B. scientists' hands C. microbes D. fingerprints and microbes on people's hands
阅读理解：阅读下面的短文，根据文章内容进行判断，正确写“T”错误写“F”。
Do you seem to be late for work or school a lot？ Being on time is very important for personal success! Learn to improve your chances for success with these tips for being right on time – all the time!
To be punctual means to do what you should do on time. Being a punctual person, one should:
Recognize time. Keep your watch exact. It may be helpful to set your watch just two minutes ahead. Keep a clock, phone, computer or anything that shows time in each room of your house.
Wake up when you need to. If you have difficulty with this, place your alarm clock to somewhere that you cannot reach from your bedB、that way, you have to get up to turn it off. If you can't get out of bed on time, you may be going to bed too late. Try sleeping earlier to allow yourself at least 7 hours'sleep.
Insist on being 15 minutes early for everything. If you have to be at work at 8:00, tell yourself“I have to be at work at 7:45”. If you do this, you will be on time even with a slight traffic jam. You can talk with others who are early, and that will make you happy before work!
1. Being punctual has nothing to do with personal success. {T、F}
2. It is unnecessary to set your watch two minutes ahead. {T、F}
3. You'd better place your alarm clock beside your bed so that you can turn it off at once. {T、F}
4. Being a punctual person, one should sleep earlier to allow himself more than 7 hours'sleep. {T、F}
5. This passage is mainly about the importance to be punctual. {T、F}
第一节 短文理解1
根据短文内容，判断文后给出的陈述是否正确。认为正确的，选[A](True)；认为错误的，选[B](False)。
In classrooms in die United Slates (美国) and Canada (加拿大). students often talk to each other. not just to the teacher. It is important to know the names of your classmates (同班同学) so you can ask them questions. tell them your ideas. and work together.
Students talk just to the teacher in classrooms in the United States and Canada.
A．True.
B．False.
The main purpose of the passage is to tell us______.
A．Cultures are not hierarchical
B．Languages are not hierarchical
C．The relation between language and culture
D．The study of language
The passage aims to tell ______.
A．the constant pursuit of happiness
B．the great importance of happiness
C．the real meaning of happiness
D．the changing concept of happiness
According to the passage, people tell protective lies simply for their own benefits.
A．Y
B．N
C．NG
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