A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely falling below 16℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover, these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world.
In the past hundred years, humans have begun destroying rainforests in search of three major resources : land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example，a lot of carbon dioxide in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit. There are two main reasons for this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world’ s wood supply.Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests. Rainforests can help to adjust the climate because they________.
| A．reflect more heat into the atmosphere |
| B．bring about high rainfall throughout the world |
| C．rarely cause the temperature to drop lower than 16℃ |
| D．absorb the heat from the sun, reducing the effect of heat from the sun on the earth |
What does the word “this” underlined in the third paragraph refer to?
| A．We will lose much more than we can gain. |
| B．Humans have begun destroying rainforests. |
| C．People have a strong desire for resources. |
| D．Much carbon dioxide comes from burning rainforests. |
It can be inferred from the text that________.
| A．we can get enough resources without rainforests |
| B．there is great medicine potential in rainforests |
| C．we will grow fewer kinds of crops in the gained land |
| D．the level of annual rainfall affects wind patterns |
. What might be the best title for the text?
| A．How to Save Rainforests? |
| B．How to Protect Nature? |
| C．Rainforests and the Environment. |
| D．Rainforests and Medical Development. |
Breakfast is the most important meal of the day. It is also the most neglect (忽视). Common reasons for not eating breakfast include having no time, not feeling hungry, traditional dislike and dieting.
Breakfast simply means “break the fast’’. Your body spends at least 6 to 12 hours each night in a fasting state. In the morning your body needs energy for the day’s work ahead.
A good breakfast should provide 1/3 of your total calorie(卡路里)needs for the day. On average, we eat 400 less calories for breakfast than for dinner. If breakfast doesn’t appeal (吸引) to you in the morning, try eating a lighter dinner earlier in the evening or save half of your dinner for breakfast in the morning.
If you still aren’t hungry in the morning, start with something small like juice or toast or have a nutritious (有营养的) mid-morning snack (小吃) later when you are hungry.
So, you say you are on a diet. Some people fear that eating breakfast will make them hungrier during the day and they will eat more. It is true that eating breakfast is likely to make you feel hungry throughout the day. That is because your body is working correctly. Although you may feel as if you are eating more all day long, in reality you are probably not.
Not eating breakfast can also cause you overeat, since a fall in blood sugar often makes you feel very hungry later. To make matters worse, since your body is in a slow state, it will not be able to burn those extra calories very efficiently (有效). If you feed your body healthy snacks and meals throughout the day, you are less likely to become hungry and stuff (填饱) yourself as soon as you begin to eat.
Since breakfast is the first and most important meal of the day, choosing the right food is important. The best breakfast foods are fruits, juice, lean meat and grain products such as bread, rice, noodles and cereals. What is the meaning of the word “fast” in the phrase “break the fast”?
| A．movement | B．going without food |
| C．quickness | D．certain kind of food |
If you don’t want to have breakfast in the morning, according to the writer’s suggestion, you should________.
| A．see a doctor to have an examination |
| B．have a little supper |
| C．go to a restaurant to enjoy a good meal |
| D．have a good supper |
Eating breakfast, in fact, makes your body_________.
| A．work out of order | B．produce too much energy |
| C．work well | D．feel hungry quicker |
Not eating breakfast will_________.
| A．save a lot of money | B．do harm to your health |
| C．do good to your health | D．help you keep in shape |
In the last paragraph the writer mainly_________.
A. persuades us to have a good breakfast
B. tell us what food isn’t suitable for breakfast
C describes when and how we should have our breakfast
D .tell us what food we should have for breakfast
Doctors have known for a long time that extremely loud noises can cause hearing damage or loss. The noise can be the sound of a jet airplane or machines in factories of loud music or other common sound at home and at work. A person only needs to hear the noise for little more than one second to be affected.
An American scientist has found that using aspirin (阿斯匹林) increase the temporary (暂时的)hearing loss or damage from loud noise. He did an experiment using a number of students at a university who all had normal hearing. He gave them different amounts of aspirin for different periods of time, then he tested their hearing ability. He found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin. The hearing loss was about two times as great.
The scientist said millions of persons in the U.S. use much larger amounts of aspirin than were used in his experiment. He said these persons face a serious danger of suffering hearing loss from loud noise.Doctors have long known that__________.
| A．one may lose his hearing when he hears a terribly loud noise. |
| B．one may become deaf when he hears a loud noise. |
| C．loud noises can cause damage to the hearing of the young people only |
| D．common sounds at home are not harmful to the ear |
This passage suggests that one’s hearing________.
| A．will be damaged even if he has heard a loud noise for only little more than one second |
| B．will be damaged even if he has heard a loud noise less than one second |
| C．will not be damaged if he has heard a loud noise for only little more than one second |
| D．will not be damaged if he has little more than one second to get ready |
One conclusion you can draw from the passage is that aspirin________.
| A．makes hearing damage from loud noise worse |
| B．should never be taken more than four grams |
| C．can damage one’s hearing when it is given more than four grams daily |
| D．always increases hearing loss by two times |
Millions of Americans are in danger of suffering hearing loss because they__________.
| A．take too much aspirin |
| B．often take air trips |
| C．like listening to loud music |
| D．have too much loud noises at home and at work |
The American scientist did his experiment in order to find ________.
| A．how much aspirin would affect a person’s hearing |
| B．how much aspirin should be given in the treatment of the patients with hearing damage from loud noise |
| C．whether aspirin would increase the temporary hearing damage from loud noises |
| D．whether the people who had hearing damage should use aspirin |
Chinese are very generous when it comes to educating their children. Not caring about the money, parents often send their children to the best schools or even abroad to England, the United States or Australia. They also want their children to take extra-course activities where they will learn a musical instrument or ballet or other classes which will give them a head start in life. The Chinese believe that the more expensive an education is, the better it is. So the parents will spend an unreasonable amount of money on education. Even poor couples will buy a computer for their son or daughter.
However, what most parents fail to see is that the best early education they can give their children is usually very cheap.
Parents can see that their children’s skills vary, skilled in some areas while poor in others. What most parents fail to realize though, is that today’s children lack (缺乏) self-respect and self-confidence.
The problem is that parents are only educating their children on how to take multiple-choice tests and how to study well, but parents aren’t teaching them the most important skills they need to be confident, happy and clever.
Parents can achieve this by teaching practical skills like cooking, sewing and doing housework.
Teaching a child to cook will improve many of the skills that he will need later in life. Cooking demands patience and time. It’s an enjoyable but difficult experiment. A good cook always tries to improve his cooking, so he will learn to work hard and gradually to finish his job successfully. His result, a well-cooked dinner, will give him much satisfaction and a lot of self-confidence.
Some old machines , such as a broken radio or TV set that you give your children to play with will make him curious (好奇) and arouse his interest He will spend hours looking at them, trying to fix them; your child might become an engineer when he grows up. These activities aren’t merely teaching a child to read a book, but rather to think, to use his mind. And that is more important.Parents in China, according to this passage, _________.
A. are too strict with their children
B. are too rich to educate their children
C have some problems in educating their children correctly
D. are too poor to educate their childrenGenerally speaking, children’s skills_______.
| A．come from their parents |
| B．have nothing to do with their education |
| C．may be different |
| D．have something to do with their marks in the exams |
The writer of this passage doesn’t seem to be satisfied with_______.
| A．the parents’ idea of educating their children |
| B．the education system |
| C．children’s skills |
| D．children’s hobbies |
Doing some cooking at home helps children_________.
| A．learn how to serve their parents |
| B．learn how to become strong and fat |
| C．benefit from it and prepare themselves for the future |
| D．make their parents believe that they are clever |
According to the last paragraph, we can conclude that_________.
| A．broken radios and television sets are useful |
| B．one’s curiosity may be useful for his later life |
| C．an engineer must fix many broken radios |
| D．a good student should spend much time repairing radios |
One night last February, a seventeen-year-old Duffy drove home along a winding road, he saw a strange light thrown against the tree. “I knew it wasn’t the moon”, he said. “I drive this road all the time and I notice little things out of place.”
Duffy stopped his car and got out to examine. Below him far down in the deep valley lay a broken car with its headlights on. Thirty minutes earlier, a man had driven off the edge of the road, which has no guardrail. His car fell and rolled end over end, landing on its top more than two hundred feet below.
Duffy rushed to call for help, then returned and got down to reach the injured driver. Snow covered the valley and the temperature was below freezing. After struggling back up the cliff, Duffy took off his jacket and shirt and wrapped the injured man in time, along with the blankets from his car.
Life-saving deeds are starting to become usual action for Duffy, the oldest of seven children. When he was 12, he saved his ten-year-old brother from drowning. Two years ago, his three-year-old sister ate rat poison, and Duffy cleaned out her mouth, make her drink milk to protect her stomach and called doctors.
“We have tried to teach the children good values, and it looks like we have got some reward for it.” His father says.The strange light came from ________.
| A．The bright moon. | B．Duffy’s car. |
| C．The broken car in the valley | D．an unknown place |
The phrase” landing on its top” means the car lay_________.
| A．on the top of the cliff | B．with its wheels upward |
| C．with its head upward | D．on the road as usual |
Duffy wrapped the man because_________.
| A．he was badly injured | B．he had lost too much blood |
| C．he had nothing on | D．it was too cold that day |
From the above article, we can see Duffy has saved ________ at least.
| A．two | B．three | C．four | D．five |
“We have tried to teach the children good values” may probably mean Duffy’s parents often tell their children_________.
| A．to help people in danger | B．how to save people’s lives |
| C．to remember the value of the car | D．how to do business |
This is a true story from Guyana. One day, a boy took a piece of paper from a box. He made a paper ball and pushed it into his nose. He couldn’t get it out. He ran crying to his mother. His mother couldn’t get the paper out, either. A week later, the paper was still in the boy’s nose. His nose began to have a bad smell.
So his mother took the boy to a hospital. The doctor looked up at the child’s nose, but she couldn’t get the paper out. She said she had to cut the boy’s nose to get the paper out.
The boy’s mother came home looking sad. She didn’t want her child to have his nose cut. The next day she took the boy to her friend Sidney who lived in a house with an old lady called May. May wanted to see the child, so the child let her look up his nose.
“Yes, I can see it,” May said. “It will be out soon.”
As she spoke, she shook some black pepper on the child’s nose. The child gave a mighty sneeze and the paper flew out. His mother was surprised. May told his mother to take the boy to the seaside for a swim, for the salt water would go up his nose and stop the bad smell.
So the lucky boy didn’t have to go to the hospital to have his nose cut.After the boy pushed a paper ball into his nose, ____.
| A．he took it out | B．his mother took it out |
| C．he did nothing but cry | D．he tried to take it out but failed |
The paper ball stayed in the boy’s nose for ____.
| A．at most seven days | B．less than seven days |
| C．more than seven days | D．exactly seven days |
According to the story, _____ was most worried about the boy’s accident.
| A．the boy’s mother | B．Sidney | C．May | D．the doctor |
Which of the following is TRUE?
| A．The doctor helped to take the paper ball out of the boy’s nose. |
| B．May succeeded in taking the paper out. |
| C．The boy’s mother found some black pepper to solve the problem. |
| D．The boy had to have his nose cut at last. |
The boy should be taken to the seaside for a swim because ____.
| A．he needed to learn to swim |
| B．the sea water would stop the bad smell of his nose. |
| C．the sea water would wash out the paper ball. |
| D．he needed a rest |
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