Height is just one of the thousands of features (特征) that your genes (基因) 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 maybe 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 enough sleep and enough exercise will help you grow to the right height.
No doubt you’re wondering how fast you should grow. There’s no perfect or right answer. Kids grow about 2 inches (5 centimetres) 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 centimetres 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 very quick growth 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, 9 and 15 for boys.
You’ll usually begin to notice that you’re growing faster about a year after your body starts to show the first changes of puberty.The Chinese for the underlined word in the third paragraph “puberty” is .
| A．童年时期 | B．婴幼儿时期 | C．习惯养成期 | D．青春期 |
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 protect the environment |
| D．you can record your growth during puberty |
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 |
After reading this passage, we can explain ___________.
| A．how good it is to be a doctor |
| B．how much sleep we need |
| C．why genes can’t decide everything |
| D．what an unhealthy diet is |
Which is NOT mentioned (提及) in the passage?
| A．Your height most probably depends on (取决于) how tall 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. |
C
Many animals hide to stay alive. They hide in many ways. Some animals hide in leaves; some animals hide in snow. Usually their colors or shapes help protect them. It’s hard to see an Arctic bear in snow. Its white fur helps protect it. Chameleons(变色龙) can hide by changing colors. Their skin turns the same color as what is around them. Some chameleons can change colors in five minutes.
Many animals try to look bigger than they are to stay alive. Some animals can make other animals think they are very big. If they look very big, animals that are looking for food will run away. Bears can walk on two legs. They look very, very scary. Some animals will run away from them.
Many animals try to stay around other animals. This helps them stay alive. Zebras stay close together so that they can help each other look out of danger. Seeing many stripes at once can also confuse animals that want to eat them. Some birds stay in a circle, each toward a different direction. In this way they can also help each other stay alive by looking around for animals that many want to eat one of them.Animals have ways to stay alive. How many kinds of animals are mentioned in the passage ?
| A．One | B．Two | C．Three | D．Four |
Why do animals hide ?
| A．Because they like to play hide-and-seek. |
| B．Because they are shy. |
| C．Because they want to catch others. |
| D．Because they want to protect themselves. |
How do Chameleons hide ?
| A．They change colors. | B．They change shapes. |
| C．They hide in snow. | D．They hide in leaves. |
How do zebras hide ?
| A．Become good friends. |
| B．Talk to each other. |
| C．Help each other look out for danger. |
| D．Eat and play together. |
Why do animals try to look bigger than they are ?
| A．They want other animals to run away from them. |
| B．They want other animals to follow them. |
| C．They want other animals to see them. |
| D．They want other animals to like them. |
B
Life in the 2100s will be very different from life today. Between then and now many changes will take place. What will the changes be?
The population is growing fast. There will be more people in the world and most of them will live longer than people do now.
Computers will be much smaller and more useful, and there will be at least one in every home. And computer studies will be one of the important subjects in schools then.
People will work fewer hours than they do now and they will have more free time for sports, watching TV and traveling. Traveling will be much easier and cheaper. More people will go to other countries on holiday.
There will be changes in our food, too. Maybe no one will eat meat every day. Instead, they eat more fruit and vegetables. Maybe people will be healthier.
Work in the future will be different, too. Dangerous and hard work canl be done by robots, because of this, many people will not have work to do. This will be a problem.There will be in the future.
| A．small population | B．few changes |
| C．more people | D．few vegetables |
In the future the computer will be .
| A．much bigger and few people will use it |
| B．much smaller and more useful |
| C．smaller and not many people will use it |
| D．bigger and a lot of people will use it |
In the future more people .
| A．will go to other countries for holidays |
| B．will study at school |
| C．will go to work earlier |
| D．will work for many hours |
People will prefer to in the future.
| A．fruit and vegetables; meat |
| B．meat; fruit and vegetables |
| C．fruit and meat; vegetables |
| D．meat and vegetables; fruit |
The robots will in the future.
| A．do the dangerous work |
| B．do all the work |
| C．do only housework |
| D．do the easy work for people |
Ⅰ.阅读短文，选择最佳选项。
A
Dear Amy
How are you? Mum, Dad and I went to Thailand last week. We had a great time!
We arrived at the airport early on Friday morning. I chose a window seat on the plane. I could see the clouds clearly from the window. They looked soft and shiny. Four hours later, we landed in Thailand. We stayed at a hotel in Pattaya on our first day. We went to the beach. We played different water sports there. We had so much fun! We were tired when we got back to the hotel.
On the next day, we went to Bangkok. We visited two temples there. They looked like golden bells with pointed tops. We took some photos outside the temples and had a walk in the gardens. In the evening, we had dinner at a restaurant next to a lake. The food was very spicy so I kept drinking cold water!
On the last day, we hung out at a shopping mall. Mum bought a beautiful tea set. Dad bought some T-shirts and I bought some dried mangoes (芒果干). We went to the airport after lunch. I was lucky because I got a window seat again. This time I could see the beautiful sunset (日落).
We enjoyed the trip very much. I hope we will go on another trip again soon.
Love
PollyIn Thailand Polly did the following activities EXCEPT .
| A．go shopping | B．play water sports |
| C．go to the beach | D．enjoy the sunrise |
How long was Polly’s trip in Thailand?
| A．2 days. | B．3 days. | C．5 days. | D．A week. |
Polly and his parents went to on the second day.
| A．the beach | B．the temples |
| C．the airport | D．the shopping mall |
The underlined word ‘spicy’ probably means ‘ ’.
| A．hot | B．Sweet | C．salty | D．sour |
In this letter, Polly mainly told Amy about .
| A．his weekend | B．his holiday plan |
| C．his trip to Thailand | D．his views of Thailand |
C
If your pen broke at school today, what would you do? You would go to a shop and buy a new one. What if you could simply print out a real, working pen with your 3-D printer without leaving your room?
Ten years ago people could only see 3-D printing in science fiction（虚构的） movies. But now 3-D printing is here and it’s bringing big changes.
Unlike normal printing that can only copy a 2-D picture with ink（油墨），3-D printing can build almost anything made from material. The printer layers(分层) the material in different shapes to create the object you want to be copied.
The 3-D printer has been used to make many different things. People have made cups cars and even an airplane with it.
Doctors have been using 3-D printers for several years. People’s nervous systems （神经系统）have been printed out in 3-D form medical research. Some body parts have been printed and used in hospital. Several months ago, doctors used a 3-D printer to rebuild the face of a person who had a bad accident. In the future, it is expected（期待） that the printer will make human organs（器官） to save more lives.
However， there are drawbacks to the printer. At the moment, printing can be quite slow and it’s still rather expensive. The average(平均的) price of a household printer is around $1,700,not including the cost of the materials.
But as the technology develops, disadvantages will be improved. Only time will tell where this new technology will take us.
People could see 3-D printing in_________ten years ago.
A. large high school
B. science fiction movies
C. digital camera shopPeople still can’t make a(n)________with a 3-D printer so far
A. airplane B. face C. organWhat does the underlined word “drawbacks” mean?
A.不足 B.趋势 C.优点Which of the following is TRUE?
A. The normal printer can build 3-D objects you mant.
B. No nervous systems are printed out in 3-D form.
C. The 3-D printing can be cheaper and faster in the futureWhat’s the best title of the passage?
A. The disadvantages of 3-D printing
B. the changes brought by 3-D printing
C. The rapid development of science
B
Peter Brown sat quietly when Dr. Johnson examined him. The doctor looked at the boy’s throat, took his temperature and listened to his heart. Finally, he asked Peter’s mother a few questions.
“When did Peter begin to feel ill?” “This morning when he got up. He said he felt too sick to go to school today.” “What did he eat for breakfast?” “Orange juice, two pieces of bread, an egg and a glass of milk.” I see,” the doctor asked Peter, “How do you feel now，my boy?” Peter answered “Terrible, I think I’m going to die(死).”The doctor said, “You won’t die. In fact, you’ll be fine by dinner time.” “Oh, doctor! Do you really think so?” Peter’s mother looked very glad, Dr. Johnson answered, “Mrs. Brown, your son has a sickness that is common（普通的）to boys at a time like this. It comes and goes quickly.
Mrs. Brown said, “But I don’t understand.” “Today,” the doctor told her, “the most exciting football final of the World Cup is on TV. If Peter feel well enough to watch TV this afternoon, and I think he does. He will be fine when the final is over. It’s the only cure(疗法) I know of this sickness. Now, if you’ll excuse me, I must go across the street to see the Ford’s boy, Steve. He seems to have the same thing as Peter has today.”Peter said that he didn’t feel well when he____.
A. had breakfast B. went to school C. got upPeter ate _____________ for breakfast
A. very little B. a lot C. nothingWhat did Peter really want to do?
A. He wanted to be ill.
B. He wanted to go to school.
C. He wanted to watch the football final on TVThe doctor did the following(以下的) things except_________
A. looked at the boy’s throat
B. listened to his heart
C. gave Peter some medicineAccording to the passage, which of the following is TRUE?
A. Steve was terribly ill.
B. Peter’s mother called the doctor and asked many questions.
C. Peter and Steve both wanted to watch the football games.