The keys to reaching or staying at a healthy weight are regular exercise and good eating habits. Teens should get 60 minutes or more of physical activity a day. Note the word “activity”. As long as you’re getting your body moving, it doesn’t have to mean doing difficult exercise or going to the sports hall every day. All that matters is that each week you get the right balance of activity, including aerobics (有氧运动), strength building, and flexibility (柔韧) exercise. Make exercise a habit by arranging some time every day.
On days when you have soccer practice or an aerobics class, you may have no trouble exercising for an hour or more. But most of us are busy, and 60 minutes a day for exercise seems like a lot of time. The good news is that it’s OK to divide it into shorter exercise breaks throughout the day.
Just as you might have a healthy snack to stop yourself from getting hungry, exercise snacks can keep energy levels high. So get up 15 minutes early and do some stretching (伸展) activity. Walk fast or run slowly for 15 minutes after lunch. Do the same thing after school — or walk or bike home. Add to that taking the stairs, PE class, and walking between classes during the day, and you’ve probably reached your 60 minutes.
Here are five simple ways to make an exercise lifestyle change:The writer thinks many people probably misunderstand the word“activity” to be “_______”.
| A．physical activity | B．body movement |
| C．sports hall exercise | D．outdoor exercise |
When exercising, the most important fact is ________.
| A．the time spent on exercise |
| B．the intensity of activity |
| C．the difficulty of exercise |
| D．the right balance of activity |
The author advises dividing activity into shorter exercise breaks because ___.
| A．exercising for a long time is bad for people’s health |
| B．it has the same effect as soccer practice |
| C．people usually haven’t much time to exercise |
| D．no one can spare lots of time to exercise |
What’s the best title for this passage?
| A．Regular exercise. | B．School exercise. |
| C．Indoor exercise. | D．Difficult exercise |
Fire can help people in many ways. But can also be very harmful. Fire can heat water warm your houses, give light, and cook food. But fire can burn things too. It can burn trees, houses, animals, or people. Sometimes big fires can burn forests.
Nobody knows for sure how people began to use fire. But there are many interesting, old stories about the first time a man or woman started a fire. One story from Australia tells about a man very, very long time ago. He went up to the sun by a rope and brought fire down.
Today people know how to make a fire with matches. Children sometimes like to play with them. But matches can be very dangerous. One match can burn a piece of paper, and then it might burn a house. A small fire can become a big fire very fast.
Fires kill many people every year. So you must be careful with matches. You should also learn to put out fires. Fires need oxygen. Without oxygen they die. There is oxygen in the air. Cover a fire with water, sand, or in an emergency, with your coat or something else. This keeps the air away from a fire and kills it.
Be careful with fire, and it will help you. Be careless with fire, and it will burn you. Which is true?
| A．We are not sure how people started to use fire. |
| B．It is an Australian who started a fire. |
| C．We know how people began to use fire. |
| D．Nobody knows how to make a fire. |
Children mustn’t play with matches because ______.
| A．matches burn paper |
| B．it is not interesting |
| C．matches can be dangerous |
| D．they don’t know how to make a fire with matches |
If you are going to put out a fire, you ______.
| A．must be careful with matches |
| B．ought to know it can be harmful |
| C．have to cover it with water only |
| D．should keep air away from it |
We must be careful with fire, or it ______.
| A．can be | B．warms our houses |
| C．might burn us | D．will help us |
What is the main idea of the passage?
| A．Fire can help people in many ways. |
| B．Fire can be both helpful and harmful. |
| C．Fire can burn things and people |
| D．We must be careful with matches. |
Long ago ,there lived in Greece a learned man. He was so well known for his good knowledge of almost everything that lots of people from all over the country came to learn from him. The great man taught his students whole-heartedly and answered their questions with great patience.
One day a student asked him, “ My dear teacher, didn’t you say you yourself have many ,many more questions about things than we do? But I think we students have far more than you.”
With a smile on his face, the teacher drew two circles ,one as large as a big cake, the other smaller. Then he said , “Of course, I have learned much more. But it’s wrong to think that a teacher has fewer questions than his students. Now, look at these two circles. The inside of the bigger one is my knowledge of things, and the inside of the smaller one is yours. Out of the circles is what is still unknown to us. Since mine is larger, I have to use the longer line to draw the bigger circle. That means I have more opportunities to face what is still unknown. And that’s why I myself have more questions than you do. The more you learn , the more questions you have. You will never learn enough ,you know.”The learned man drew two circles to show _____.
| A．he was good at drawing circles |
| B．his knowledge had something to do with the circles |
| C．why he had more questions than the students |
| D．how he could get more knowledge |
The student didn’t agree that ______.
| A．the teacher had so many questions as a learned man |
| B．the teacher had so many questions |
| C．the students had fewer questions than the teacher |
| D．the students had more questions than 0the teacher |
The teacher was famous for his ______.
| A．kindness | B．knowledge | C．patience | D．questions |
From the passage we can learn that_____.
| A．the more questions we have, the more knowledge we may get |
| B．it’s never too old to learn |
| C．every one of us should try to be a learned man |
| D．a teacher should have many questions |
Which of the following shows us what the teacher drew?
There once lived in China a very foolish king and queen. One day the queen had a baby daughter. When they saw their baby, they both cried out, “My goodness! How small it is! It’s hairless and toothless! It’s a monster!” They sent for all the doctors in the country and ordered them to prepare some medicine for her.
“When she drinks your medicine, she must grow to the right size and have hair and teeth,” the king said, “If you don’t do this, you’ll have a beating.”
The doctors thought it impossible, but they dared not say anything against the king’s order. Just then and old doctor stepped forward. “Oh, we shall certainly obey your order,” he said, “but it takes time. We have to dig a mineral from the KunLun Mountains when the snow melts for the second time. The snow melts on those mountains only once in six years. So we need twelve years.”
At last the king agreed and the doctors took away the little princess. On her twelfth birthday, they brought her back to her parents with long black hair and beautiful teeth. The king and queen were very happy and gave the doctors expensive presents.Which of the following words makes the sentence untrue? The baby was ______.
| A．Toothless | B．hairless | C．unusual | D．small |
The doctors would be beaten if ______.
| A．the baby daughter didn’t drink their medicine |
| B．they refused to obey the king’s order |
| C．the baby daughter grew to the right size |
| D．the baby daughter became a monster |
The old doctor wanted to keep the king’s daughter for twelve years because ______.
| A．they needed a lot of different plants |
| B．they need a lot of different minerals |
| C．this would give the baby time to grow up |
| D．they had to dig a mineral the snow melted for the second time |
The doctors thought it impossible ______.
| A．for them to change the king’s order |
| B．for them the prepare the medicine in twelve years |
| C．for the small baby to drink the medicine |
| D．for them to make the baby have teeth and hair or grow teeth at once |
______ the king wouldn’t have given them expensive presents.
| A．Had the doctors not brought back a beautiful girl |
| B．If the doctors hadn’t found the minerals |
| C．Had the doctors not been able to prepare the magic medicine |
| D．If the daughter were still a monster twelve years later |
Many children use the Internet to get useful knowledge and information, and to relax in their free time. But some of them are not using in a good way. Here are some rules to make sure you are safe and have fun on the Internet.
Make rules for Internet use with your parents. For example, when you can go online, for how long and what activities you can go online.
Don’t give your password (密码) to anyone else, and never leak out the following information---your real name, home address, age, school, phone number or other personal information.
Check with your parents before giving out a credit (信用) card number.
Never send a photo of yourself to someone in e-mail unless your parents say it’s OK.
Check with your parents before going into a chat room. Different chat rooms have different rules and attract different kinds of people. You and your parents must make sure it’s a right place for you.
Never agree to meet someone you met on the Internet without your parent’s permission (允许). Never meet anyone you met on line alone.
Always remember that people online may not be who they say they are. Treat everyone online as strangers.
If something you see or read online makes you uncomfortable, leave the site. Tell a parent or teacher right away.
Treat other people as you’d like to be treated. Never use bad language.
Remember—not everything you read on the Internet is true. If you want a true friend on the Internet , you can ____________ .
| A．tell the people what your name is . |
| B．meet the people on line alone. |
| C．write an e-mail about yourself . |
| D．get your parent’s permission. |
It’s good for children to ________ on the Internet.
| A．give password to others |
| B．get useful knowledge and information |
| C．give out a credit card number |
| D．go into a chat room as they’d like to |
The underlined phrase “leak out” in the third paragraph may mean “________.”
| A．give away | B．leave out |
| C．give out | D．put away |
If your parents don’t agree, never ________.
| A．read anything on the Internet |
| B．relax in your free time |
| C．have a face-to face meeting with anyone you met online |
| D．treat other people as you’d like to be treated |
This passage is mainly about “________”.
| A．How to use Computers |
| B．Surfing on the Internet |
| C．Information on the Interne |
| D．Internet Safety Rules |
阅读短文，然后根据要求完成任务。
Do you carry too much on the way to school or home? Don’t worry．Try e-readers (电子阅读器) and say goodbye to your heavy schoolbag．
An e-reader has the memory space to hold hundreds of books．So people want to (A)扔掉沉书包 and read with small, light e-readers．For example，Cushing Academy，a high school in Massachusetts，USA，replaced (替换) most of the 20，000 books in (B) its library last summer．Teachers and students will use e-readers instead．
Most e-readers are thin and weigh less than 500g．They can download (下载) an e-book in 60 seconds．“It’s (C) so easy．You can have a lot of books right at your fingers!” said Meghan Chensusky．
Chinese schoolchildren are also trying e-readers．At the Shanghai World Expo (世博会)，an e-schoolbag is now on show．It is a special e-reader．Students can use it to download textbooks from the school servers (服务器)．(D)It can also send and receive homework．Some Schools in Beijing and Shanghai have tried this e-schoolbag for a few years．“It’s excellent．I (E)don’t have to carry a heaw schoolbag anymore，”said Xiao Qi，15，Beijing．
New e-readers are not just for reading．They have Wi-Fi and multimedia (无线电视和多媒体)．Parents worry that these may hurt their children’s study habits． “I think Wi-Fi is not necessary for kids，”said Zeng Wenwen，43， Beijing．将文中划线部分(A)译成英语:________________
文中划线部分(B)指代的是:________________
写出文中划线部分(C)和(E)的同义词或近义词：________ ________
将文中划线部分(D)改写为：Homework can also__________ _________and received through it．
从文中找出两个修饰或描写e-reader的形容词：________ ________
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