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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.
小题1: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
小题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 protect the environment
D.you can record your growth during puberty
小题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
小题4: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
小题5: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.

答案

小题1:D
小题2:B
小题3:B
小题4:C
小题5:C
解析

小题1:根据单词的意思和文章内容文章内容语境,可知答案为D
小题2:根据文章内容Your doctor will know how your growth has been going over the years.可知答案为B
小题3:根据文章内容大意可知答案为B
小题4:根据文章内容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.可知答案为C
小题5:根据文章内容大意可知答案为C
核心考点
试题【Height is just one of the thousands of features (特征) that your genes (基因) decide】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
International students in Christine Rhodes’ English class in Australia share their impressions (印象) of places they have visited in Australia.
Canberra, the nicest city in Australia
I went for a short holiday to Canberra. My uncle lives there. It’s the nicest city in Australia, a little bit similar to Cairns. There’re lots of big rivers and trees around the city.
Siggi Siebold from Germany
The small city of Mount Isa
I went to Mount Isa six months ago. It’s a long way from Brisbane — about 2,000 km. It’s a small city, with a population of 21,000, but it has all the basic facilities such as a base hospital, six schools and supermarkets. Here the weather is hot and gets very little rain. There’re two big lakes to keep rainwater for people in the city to drink.
Indra Ekanayake
Lake Moondarra and a mine (矿)
In Mount Isa, there’s a dam (水坝) called Lake Moondarra. At weekends you can go there with your friends, and it is beautiful. On the lake, there is water skiing. Also, people can go fishing there.
There’s a big mine in Mount Isa. Many people go to work in the mine and earn a lot of money. Mount Isa isn’t a beautiful green place, but many people love it.
Ida Robb from Indonesia
小题1:Siggi Siebold is from    .
A.Australia B.GermanyC.EnglandD.Indonesia
小题2:What does the underlined word “facilities” probably mean in Chinese?
A.设施B.土地C.交通D.名胜
小题3:Lake Moondarra is a    .
A.cityB.mountain C.mineD.dam
小题4:Which of the following is NOT mentioned by Ida Robb?
A.People can go fishing on Lake Moondarra.
B.There are 21,000 people in Mount Isa.
C.There’s a big mine in Mount Isa.
D.Many people like Mount Isa though it isn’t a beautiful green place.
小题5:Which of the following is TRUE?
A.Siggi Siebold stayed in Canberra for six months.
B.Mount Isa is a famous village in Australia.
C.People in Mount Isa drink rainwater.
D.People can’t go water skiing on the lake.

题型:不详难度:| 查看答案
I have been using the Internet since I was five years old, when my dad first sat me down in front of a computer and connected me the World Wide Web.
I’ve always felt like a master of the Internet world. AOL Instant Messaging, MSN, Gmail, Facebook. Myspace---I’ve got it all under control. I thought there was nothing more to it besides checking my e-mail and wasting my time, until I was introduced to electronic commerce(e-commerce): business on the Internet.
Some online business are run from one- room home offices. Others have hundreds of employee(雇员)spread across five different continent. Have you ever heard of Amazon. com, Yahoo. com?
My friends often said they got cheap textbooks off Amazon.com, or had a good deal(交易)on Steve Madden boots that were on sale at SteveMaden.com. Unfortunately for me, I continued my “e-commerceless” Web-surfing, unaware(不知道)of all the deals I was missing out on.
That is, of course, until my sister finally sold the idea to me.
“Why are all these packages arriving in the mail for you, Katy?” I asked her one day. Strange envelopes had been put on our doorstep for weeks now, each one always addressed to my sister; and we all know little sisters should never be getting more mail than their elders!
“Oh, it’s the things I ordered online!” she answered. I watched speechlessly as she opened them. There was no way our parents were letting her spend that much money- online or off!
“How much did all of this coat?”
“Oh, only about $15in all!” She said excitedly. “Everything on eBay is on sale! It’s way better than going to the mall.”
I felt as if my entire life, there had been a store right in my backyard that I had never walked into! That week, I ordered a used Spanish textbook for my summer course online for 10 percent of the publishing price. A few days later, I bought an iPod protector and a book or two via the wonderful eBay.com.
小题1:From the first two paragraph we can conclude that the author        
A.had no experience using computers
B.had no idea of what e-commerce is
C.only used the Internet to check e-mail
D.thought surfing the Internet was a waste of time
小题2:The writer didn’t find out about e-commerce until       
A.he stopped web-surfing
B.he visited a store in his backyard
C.his friends told him about the online deals they made
D.his sister explained the packages she got by mail
小题3:We can infer from the last paragraph that the author       .
A.has begun to enjoy online shopping
B.loves the big store in her backyard
C.feels she is a true master of the Internet
D.never enjoyed shopping that much
小题4:What’s the purpose of the article?
A.To make an online shopping ad.
B.To do business on the Internet.
C.To advise people to do online shopping
D.To suggest how he begins online shopping.
小题5:What would be the best title of the article?
A.Online BusinessB.Good deals
C.A master of the InternetD.Everything on Sale

题型:不详难度:| 查看答案


In every school there is “top” crowd that sets the pace, while the others follow their lead. For example, if the crowd decides that it is smart to wear bright red sweaters, then very soon everybody is wearing bright red sweaters.
There is nothing wrong with that, except the fact that for some people bright red sweater is really unsuitable.
The situation can even become dangerous, if the top crowd decides that it is smart to drink and to drive cars at seventy miles an hour. Then the people who follow the lead are endangering their lives. They are like the sheep being led to the slaughter(屠***).
Now it’s possible that you have come across situations like these more than once in your life. In fact you probably did something you knew to be wrong one time or another. You may have excused yourself by saying, “ Gee, the crowd does it.” Well, let the crowd do it, but don’t do it yourself. Learn to say “No”.
Develop your own standards(标准)and your own judgment. If you know the crowd is planning something you disagree to, you’d better take the courage to bow out in a polite way. You’ll have the satisfaction of standing on your own two feet.
小题1:The main idea of the passage is that _____________ .
A.in every school there is a “top” crowd that sets the pace
B.it’s a mistake to follow the “top” crowd blindly
C.people who follow the “top” crowd are endangering their lives
D.you probably did something wrong more than once in your life
小题2:The author(作者)doesn’t think it good wearing red sweaters if _______.
A.the crowd is wearing them
B.you can"t afford them
C.you don"t look good in red
D.it is against school rules
小题3:The writer encourages the readers to ___________ .
A.respect his or her parents
B.find excuses when he or she is wrong
C.learn to stand on their own two feet
D.take the advice of his or her elders
小题4:What does the underlined phrase “bow out in the passage probably mean?
A.鞠躬B.退出C.参与D.应允
小题5:The best title for this passage is __________ .
A.Follow the LeaderB.The “Top” Crowd
C.Being YourselfD.Rules for Teens

题型:不详难度:| 查看答案
Everybody hates rats. But in the earthquake places of the world – Japan, Los Angeles, Turkey – rats will soon be man’s new best friends.
What happens after an earthquake? We send in rescue(救援) dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can’t get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.
How does it work? First, the rat is trained to smell people. When this happens, the rat’s brain gives a signal. This is sent to a small radio on its back, and then the rescuers follow the radio signals. When the rat’s brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.
Although there are already robots which can do this job, rats are better. Christian Linster at Cornell University, New York, says, “ ‘Robot’ noses don’t work well when there are other smells around. Rats are good at that.” Rats can also see in the dark. They are cheaper and quicker to train than dogs, and unlike robots, they don’t need electricity.
The “ rat project” is not finished, but Julie Ryan of International Rescue Corps in Scotland says, “ It would be fantastic. A rat would get into spaces we couldn’t get to and a rat would get out if it wasn’t safe.” Perhaps for the first time in history, people will be happy to see a rat in a building ( but only after an earthquake, of course.)
小题1:In the earthquake places, rats will become man’s best friends because they can __________.
A.take the place of man in rescue jobs
B.find the positions of people alive who are trapped in buildings
C.serve as food for people alive who are trapped in buildings
D.send signals for the coming earthquake
小题2:The underlined word “that” in Paragraph 4 refers to(所指)  _________  
A.treating wounded people.
B.helping rescuers.
C.smelling people among different smells.
D.carry the wounded people to safety.
小题3:From the third paragraph we know the rescuers can judge a person is alive by ___________.
A.the nose made by the rat
B.the rat’s unusual behavior
C.the signal sent by the radio on the rat’s back
D.the smell given off by the person
小题4:In doing rescue jobs, __________________________.
A.rats have better sense of smell than dogs.
B.dogs don’t need to be trained to smell people.
C.robots’ sense of smell can be affected by other smells around.
D.rats can see in the dark and are smaller than robots.
小题5:After reading the passage we can know ______________________________.
A.rats have taken the place of dogs in search for people.
B.the “ rat project” has been completed
C.people are now happy to see a rat in a building
D.now people still use dogs and robots in performing rescue

题型:不详难度:| 查看答案
One of the things to be learnt in a foreign language is guessing all the time what kind of thing to come when listening to someone talking. People do this all the time in their own language, so it is necessary to do this in a foreign language, too. Here are some examples.
1.” What’s the matter?” “I went to a party last night, so I…”
2.”I feel so tired these days.” “I think you’d better…”
3.”Of course, she never stops talking. She is one of the most…”
You can see from the above three examples that the context helps a lot in understanding what is being talked about. So “guessing” is very important in understanding English, especially spoken English.
小题1:This passage tells us mainly about ________.
A.the importance of “guessing” in learning a foreign language.
B.how to guess what one is going to talk about.
C.Some examples of right guessing.
D.how important it is to guess all the time.
小题2:From the context, we can see maybe the finished answer in EXAMPLE 1 is ________.
A.…so I didn’t have a good time.”
B.…so I went to bed very late.”
C.…so I felt unhappy.”
D.…so I got up very early.”
小题3:Maybe the finished answer in EXAMPLE 2 is ________.
A.“I think you’d better have a good rest and take good care of yourself.”
B.“I think you’d better have something to drink.”
C.“I think you’d better get some help from your friends.”
D.“I think you’d better to be more careful.”
小题4:From the passage we can infer that guessing is ________ in learning a foreign language.
A.the only way
B.more important in spoken English than in written English.
C.more important than any other way
D.more important in written English than in spoken English

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