Every time you turn on the television or take a ride in a car ,you could be adding to a problem called acid rain. In this article, you’ll learn how acid is created, and how it affects us, and more im 题目和参考答案——青夏教育精英家教网—

There are about 80,000,000 mines* under the ground in more . than 60 countries. It is difficult and dangerous to clear these rnines, About 50 people including many children were’ killed ‘or htirt each iay. In 2003, APOPO, a Dutch research com pan y that uains the an imals, came up with the-idea of s\ng rats to search for the mines.
The animal trainers ‘found that a kind of rats from Africa were clever and had.a sharp* sense of smell. The rats were about 75 cm long and.weighed about l.35 kg, light enough to run across a minefield without setting off the mines.
In January 2004, the APOPO started this project. First, the trainers let the 4-week-old baby rats get familiar with humans. A few weeks later, the rats were no Ionger afraid of people and ‘the things around them. Then they were trained to connect a click* sound with food. After the rats had leamed that, the trainers then taught them to tell the difference between the smell of mines and other smells. When the rats could do it, the click was sounded and they were given a bit of banana. The method was called clicker training. “The training isn’t easy, said trainer Abdullah Mchomvu. “You have to be patient. Sometimes I get angry, but then again, I tell myself these are animals.”
After nine months’training, the rats were taken to a minefield. They’ran across the minefield, stopped, sat and scratched the ground to tell the deminers* that they smelt out’a mine. Then the mine was cleared. It had taken two ‘deminers a day to clear a 200㎡ . minefield, but with the help of two rats ‘they could finish it in two hours.
The rats and the deminers saved thousands of lives, “The rats did this job much better than we expected. So far they have helped to make almost 2,000,000㎡ of land safe. They are heroes,” said Bart Weeqens, the head of the APOPO.
小题1: The APOPO trained the rats to search for .

If you want to become a better reader, what should you know about speed of reading?
Some people read very rapidly(很快地), while others read very slowly. But which one is
better?
The rapid reader may be a good reader when he reads a storybook for fun. But he may not be
able to slow down enough to read directions(说明) carefully. He may read so rapidly that he does
not take time to understand fully the ideas and information which are important to remember.
The slow reader may be a good reader when he reads directions for making something. But he
may spend too much time in reading a simple story which is meant to be enjoyed but is not
important enough to be remembered.
So, you see, either a rapid reader or a slow reader is not really a good one. If you wish to
become a better reader, here are four important things to remember about speed of reading.
1. Knowing why you are reading will often help you to know whether to read rapidly or
slowly.
2. Some things should be read slowly throughout. Examples are directions for making or doing
something, science and history books, and Maths problems. You must read such things slowly or
remember each important step and understand each important idea.
3. Some things should be read rapidly throughout. Examples are simple stories for enjoyment,
letters from friends and bits of news from hometown papers.
4. In some of your reading, you must change your speed from fast to slow and slow to fast, as
you go along. You will need to read certain(某些) pages rapidly and then slow down and do more
careful reading when you come to important ideas.
小题1: What should be read rapidly?

A．Directions for making something.

B．Maths problems.

C．Science and history books.

D．Storybooks, newspapers, personal letters, etc.

小题2:What is the important thing you should keep in mind about speed of reading?

A．To read as fast as you can.	B．To fit your reading speed to your needs.
C．To read as slowly as possible.	D．To keep your reading at a certain speed.

小题3:Which title best gives the main idea of the passage?

A．Something about Careful Reading	B．Be a Rapid Reader.
C．How to Read?	D．How to Be a Slow Reader?

What does it feel like to break a bone (骨头)? It’s different for everyone, but the pain is often sharp (严重). If the break is small, however, the person may not feel much pain at all. If you think that you or someone else has broken a bone, the most important things to do are to stay calm, make the hurt person comfortable, and call the doctor. Do not move the injured body part since movement could make it worse.
To treat the break, the doctor will need to take an X-ray. This gives the doctor the information he or she needs to set (接上) the bone: to put it back to its normal place. If the bone is large or it is broken in more than one place, the doctor may need to use metal pins (钢钉) to set it. After the bone has been set, the next step is usually putting on a cast, the special, hard thing that will keep the bone in place for a month or two.
Your bones are excellent at healing themselves. Broken bones will produce many new cells (细胞) and tiny blood vessels (血脉). These cover both ends of the broken part, and close up the break until the bone is as whole and strong as before.
小题1: Which of the following is the best title for the passage?

A．How to Know if a Bone is Broken

B．How Broken Bones Heal Themselves

C．Common Causes (原因) of Broken Bones

D．What You Should Know about Broken Bones

小题2: When someone breaks his bone, the following should be done except ______.

A．asking the doctor for help	B．comforting the hurt person
C．moving the injured part	D．staying calm

小题3:Which is the correct order to treat the break?
a. take an x-ray b. use metal pins to set it c. put it back to its normal place d. put on cast

小题4:The underlined word “heal” in Paragraph 3 is closest in meaning to “______”.

A．break again

B．become worse

C．wound or hurt

D．become healthy again

小题5: Where would you probably read this passage?

A．In a story book.

B．On a poster.

C．In a health care book.

D．In a chemistry book.

My summer hols wr CWOT. B4, we usd 2 go 2 NY 2C my bro, his CF & thr 3:-@ kids FTF ILNY, its gr8.
　　Can you understand this sentence? If you can't, don't feel too bad: neither could the middle school teacher in England who received this as homework. This is Netspeak: the language of computerized communication found on Internet or cellphones. To newcomers, it can look like a completely foreign language. So, what is the "translation" of the sentence above? My summer holidays were a complete waste of time. Before, we used to go to New York to see my brother, his girlfriend, and their three screaming kids face to face. I love New York; it's great.
　　Schoolteachers and parents say this new form of writing is harming（破坏）the English language. Increasing spelling and grammatical mistakes cxan be seen in students' writing. They fear the language could become corrupted（面目全非的）.
　　Everyone should just relax, say linguists（语言学家）. They believe Netspeak is in fact more of a good thing. David Crystal, from the University of Wales, argues that Netspeak and Internet create a new language use and the almost lost art of diary writing has been picked up again. Geoffrey Nunberg, from Stanford University, agrees. "People get better at writing by writing," he says, "Kids who are now doing text messaging, e-mail, and instant messages will write at least as well as, and possibly better than, their parents."
　　Linguist James Millroy says, for centuries, it is believed without exception that young people are harming the language. And you can bet your bottom dollar that when today's teenagers become tomorrow's parents, they too will think this way. Milroy argues that languages do not and cannot become "corrupted"; they simply change to meet the new needs.
　　However, Netspeakers do agree that it is important to teach young people how to speak and write Standard English. Cynthia McVey says, "I can understand Netspeak worries teachers and it's important that they get across to their pupils that text messaging is for fun, but that learning to write proper English is a must for their future."
　　Perhaps we should give teenagers a little more trust anyway. Erin, age 12, says, "I wouldn't use text language in my homework. Texting is just for fun"
　小题1:What is the main purpose of the first paragraph?

A．To give an example of a foreign language.

B．To show an example of creative methods.

C．To express worries about using Netspeak.

D．To lead in the topic of Netspeak.

　小题2:Which of the following is true according to the passage?

A．Cynthia McVey points out teenagers can deal with Netspeak properly.

B．Geoffrey Nunberg believes Netspeakers can write Standard English.

C．David Crystal thinks Netspeak helps develop the habit of writing.

D．James Milroy says that language is changing and improving.

　　小题3:The expression "bet your bottom dollar" in Paragraph 5 means ______.

A．be fairly sure	B．be greatly surprised
C．think it a pity	D．find it interesting

　　小题4: What can be the best title for the passage?

A．Netspeak: A Widely-Used Language on Internet

B．Is Netspeak Harming the English Language?

C．Is Netspeak Helpful in Language Learning?

D．Netspeak: Advantages and Disadvantages

Almost all of us have unpleasant habits. We all want to get rid of(摆脱) them, but we don’t know proper ways. Here’s some advice.
●Write down all the reasons why you want to stop some behavior. Look at the reasons very often.
●It’s clever to do something else when you want to stop your bad habits. If you get angry easily, for example, you can go out for a walk.
●Decide what you’ll do to reward(奖励) yourself if you really get rid of your bad habits.
●If you get too heavy, keep junk food out of your house.
●Bad habits develop over years, so you can’t get rid of them very soon. So you should be patient.
●Don’t be afraid to ask others for support. You can talk to your friends, family or other people. When you talk to them, they might be able to provide some advice that you can’t get from yourself.

Different from popular thoughts, sometimes flu（流感） is not caused by bad weather. It is caused by viruses in the body. 51 , A/H1N1 flu has been spreading in the most parts in the world. Some studies have now shown that one of 52 ways of spreading the viruses is through the air when 53 A/H1N1 flu-sufferer coughs or sneezes. However, its viruses can sometimes spread by 54 . After a flu-sufferer rubs his nose, the viruses might be spread to his hand. Then a friend 55 to visit him, they shake their hands. The friend then gets something 56 by hand, and several days 57, he is infected. A child 58 is carrying A/H1N1 viruses uses tissues（面纸） to clean his running nose, although his parents pick up the tissues and carefully throw 59 away, they fail to wash their hands, and they will catch the viruses, too. So it is important for you to wash your hands often, it will stop the viruses from 60 in a way.

Coffee has been a part of people’s lives for thousands of years, and today it is still one of the favorite drinks in the world. Many people in the world begin their busy day by drinking a cup of or several cups of coffee. They have always said that a cup of coffee in the morning helps them begin their day in the right way. So they say a cup of coffee is necessary for them in the morning.
Do you know what in the coffee makes our bodies and brains(大脑) active? It is caffeine(咖啡因). Caffeine may increase a person’s mental and physical abilities(精力和体能). For example, two cups of coffee will make you breathe faster and augmentbody heat. All this makes you heart beat faster, and doctors warn that this may be a little dangerous.
Caffeine is found in tea, coffee, chocolate and some other foods. A little caffeine is probably not harmful. But much caffeine can make people nervous and sleepless.
小题1:A good title for this passage is .

A．Coffee Is Harmful

B．Coffee and Tea

C．Caffeine and Health

D．Caffeine Is Useful

小题2: The word “augment “ means .

小题3: From this passage, we may know that drinking a cup of coffee late at night might .

A．give you a headache

B．make you fall sleep

C．keep you awake

D．be dangerous

小题4:Caffeine is found in .

A．tea and water

B．fish and meat

C．coffee and jam

D．coffee, tea and some other foods

Expert(专家) say that students usually need eight to ten hours’ sleep at night, but most Chinese students do not get enough sleep. Some Chinese parents are usually glad to see their children studying late. They will think their children work very hard, but not all parents are happy about this. Once a mother told us that every morning her 10-year-old boy put up one finger (手指) with his eyes still closed, begging(请求) for one more minute to sleep. Like thousands of students “early birds” in China, he has to get up before six every morning.
A report shows that without a good night’s sleep, students seem to be weaker (虚弱) than they should be. Many students have fallen asleep during class at one time or another. Too much homework is not the only reason why students stay up late. Some watch TV or play the computer games late into the night.
Experts have ever said that the students should develop good study habits. So some clever students never study last, they are able to work well in class.
小题1:The 10-year-old boy begged for more minute to sleep because__________
A. he didn’t have enough sleep
B. it wasn’t time for him to get up
C. he didn’t want to go to school
小题2:In this passage we know if students don’t get enough sleep, they may________
A. become too weak to sleep
B. not work well in class
C. go to bed early
小题3:In this passage “early birds” means “persons who ______________”
A. get up early      B. get up late      C. sleep less
小题4:“Stay up late” here means “_____________”
A. study late    B. watch TV late     C. not go to bed until late
小题5:According to the passage, which of the following is right?_________
A. If you want to study better, you must work hard at night.
B. Sleeping less means working hard.
C. Some clever students are able to work well in class because they have good study habits.

A．acid rain form	B．air pollution is caused
C．noise pollution is caused	D．acid rain gets heavier

A．Preventing Acid Rain	B．Forming of Acid Rain
C．Acid rain, Heavy Rain	D．Acid Rain, Killer Rain

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