The human brain weighs about 1.4 kilograms, but it can hold much more information than most computers. However, there is another difference between humans and computers. Computers don't forget information they are given, but humans often do. No one remembers everything, and luckily we don't usually have to. But everyone can improve their memory if they want to. Here are some suggestions.

◆Try to use new informati6n immediately. For example, if you meet someone who says "Hi! I'm Carlos," don't just say "Hello." Repeat the person's name. Say"___________"

◆Break a big number into smaller parts. For example, it's hard to memorize (记忆) 109244153. But if you break it into three parts--109/244/153—it becomes easier.

◆Write out what you need to remember ever and over again. This will help you keep it in mind longer, especially for memorizing formulas (公式) or facts.

◆Always review information. If you bring what you've learned back to your mind, they become easier to remember. For example, before you go to sleep, it’s a good idea to review the new things you learned that clay.

◆Discuss with a friend. It is always easier to remember things through discussions. You can have a discussion about what's right and what's wrong, and it will lead to the right answer.

◆Never tell yourself that you have a bad memory. You can always do something to help improve your memory. And everyone's memory gets better if they use it often enough.

All of the suggestions are helpful. If you follow them, you are certain to improve your memory.

1.Which should be put in the blank (空格) in Paragraph 2？

A. Hello, Carlos. B. How do you do?

C. Hello, I am Sophia.  D. Glad to meet you!

2.What can help memorize a big number more easily according to the passage?

A. To store it in a computer.

B. To break it into smaller parts.

C. To discuss it with a friend.

D. To review it before you sleep.

3.Which of the following is true according to the passage?

A. Discussing with friends can help you remember things.

B. Always reviewing information can help you fall asleep.

C. Formulas and facts can help you learn about your brain.

D. Human beings can improve their memory by computer.

4.What does the sentence "Never tell yourself that you have a bad memory” mean?

A. You should tell others about your bad memory.

B. You should believe in other people all the time.

C. You should ask others to improve their memory.

D. You should have confidence in your memory ability.

  Height is just one of the thousands of features your genes decide. In fact, because you have two parents, your genes provide you a height that usually lands somewhere between the height of each parent. If both your parents are tall, then most probably you will be tall, too, but if you have questions about how tall you're going to be, ask your doctor if he or she can help you find it out.

But genes don't decide everything. For example, eating an unhealthy diet can keep you from growing to your full potential(潜力). Getting plenty of sleep and enough exercise will help you grow to the expected height.

No doubt you're wondering how fast you should grow. It depends. There's no perfect or right answer. Generally speaking, kids grow about 2 inches (6 centimeters) a year between age 3 and the time when they start puberty (when your body starts changing and becoming more grown up).

Your doctor will know how your growth has been going over the years. Two centimeters here and 2 inches there are not nearly as important as the height you're at now, how you've been growing up to this point, and what other changes your body may be going through.

Don't be scared if you seem to have grown a lot in a very short time. Everyone has a growth spurt（高峰）during puberty. The age for starting puberty is about 10 for girls and about 11 for boys. But it can be earlier or later ----between 7 and 13 for girls and 9 and 15 for boys.

You'll usually begin to notice that you're growing faster about a year or so after your body starts to show the first changes of puberty. 

1.. The Chinese for the word “puberty” is 　　　　　　　　　.

   A. 童年时期          B.婴幼儿时期        C.习惯养成期        D. 生长发育期

2. If you want to know how fast and how tall you should grow, _____.

   A. you should have enough exercise   B. you can ask doctors for help

   C. you should save the environment   D. You can record your growth during puberty

3. This passage is mainly about 　　　　　　　　　.

   A. how the genes work in your body           B. when is the time you grow fast

   C. why you look like your parents                D. how you grow to a certain height 

4. After reading this passage, we can explain 　　　　　　　　　.

   A. how good it is to be a doctor             B. how much sleep time we need

   C. why genes can’t decide everything            D. what healthy diet is

5. Which is NOT mentioned in the passage?

   A. Your height most probably depends on how high your parents are.

   B. Girls’ age for starting puberty is usually earlier than that for boys’.

   C. The time showing the first changes of puberty is never noticed.

   D. You may be scared sometimes when you grow too fast.

The weather is getting warmer and warmer. It is fun to play outside, but people are afraid to play outside these days, because of the H7N9 virus. The H7N9 virus is one type of influenza A H7 viruses. It is a new type of bird flu. Influenza A H7 viruses mainly affectbirds but sometimes they can also affect humans. Most people infected with H7N9 virus look like they had a common flu. They had a fever, a cough and shortness of breath. Some had bad pneumonia. This March, H7N9 virus hit Shanghai, Anhui, Jiangsu and Zhejiang. Up until April 11th, the number of people infected had reached 35. Nine of these people died.
But don’t be afraid , some cases are curable. A 4-year-old boy in Shanghai and a 67-year-old man in Hangzhou got the virus, and they are getting better. Besides, it's not easy to be infected by the H7N9 virus.
There are some ways to save ourselves from this. First, wash your hands with soap and running water before you eat and after you use the toilet. You should do the same after you touch animals or animal waste. Second, cover your nose and mouth with your elbow when coughing. Third, you should have a good rest and do some exercises, so your body can become strong enough to beat the virus.
【小题1】How’s the weather during these days?

下面Ⅰ栏是中学生要注意的五种安全隐患，Ⅱ栏是五个可供详细解释或解决的方案。请根据内容将他们进行配对，并将其字母编号填写在相应的序号后面。

Ⅰ

1.Running after each other at the rest time between two classes may get you hurt.

2.Making a fire in the bedroom is very dangerous.

3.When you get angry with anybody, you fight against him. This is not good at all.

4.If you go to swim in the river nearby without your teacher’s permission, you will be in danger.

5.Riding a bike inside the school fast is regarded as one of the dangerous things at school.

Ⅱ

A. Some students die in this way. Without their teacher or parents nearby, they may not know how to do with dangerous things they meet in the river.

B. When class is over, you should have a short rest both inside your classroom or outside your classroom. You can’t run here and there.

C. Because you may burn things inside your bedroom and even be killed by the fire.

D. If you go home by bike, please push it instead of riding inside the school until you are on the road outside your school.

E. Any classmates are your friends. Even if you can’t agree with everything, you don’t need to quarrel or fight. You should learn how to get along well with others.

  Height is just one of the thousands of features your genes decide. In fact, because you have two parents, your genes provide you a height that usually lands somewhere between the height of each parent. If both your parents are tall, then most probably you will be tall, too, but if you have questions about how tall you're going to be, ask your doctor if he or she can help you find it out.

But genes don't decide everything. For example, eating an unhealthy diet can keep you from growing to your full potential(潜力). Getting plenty of sleep and enough exercise will help you grow to the expected height.

No doubt you're wondering how fast you should grow. It depends. There's no perfect or right answer. Generally speaking, kids grow about 2 inches (6 centimeters) a year between age 3 and the time when they start puberty (when your body starts changing and becoming more grown up).

Your doctor will know how your growth has been going over the years. Two centimeters here and 2 inches there are not nearly as important as the height you're at now, how you've been growing up to this point, and what other changes your body may be going through.

Don't be scared if you seem to have grown a lot in a very short time. Everyone has a growth spurt（高峰）during puberty. The age for starting puberty is about 10 for girls and about 11 for boys. But it can be earlier or later ----between 7 and 13 for girls and 9 and 15 for boys.

You'll usually begin to notice that you're growing faster about a year or so after your body starts to show the first changes of puberty. 

1.. The Chinese for the word “puberty” is 　　　　　　　　　.

   A. 童年时期          B.婴幼儿时期        C.习惯养成期        D. 生长发育期

2. If you want to know how fast and how tall you should grow, _____.

   A. you should have enough exercise   B. you can ask doctors for help

   C. you should save the environment   D. You can record your growth during puberty

3. This passage is mainly about 　　　　　　　　　.

   A. how the genes work in your body           B. when is the time you grow fast

   C. why you look like your parents                D. how you grow to a certain height 

4. After reading this passage, we can explain 　　　　　　　　　.

   A. how good it is to be a doctor             B. how much sleep time we need

   C. why genes can’t decide everything            D. what healthy diet is

5. Which is NOT mentioned in the passage?

   A. Your height most probably depends on how high your parents are.

   B. Girls’ age for starting puberty is usually earlier than that for boys’.

   C. The time showing the first changes of puberty is never noticed.

   D. You may be scared sometimes when you grow too fast.