Why do you think people who live in some hot countries eat very spicy(辛辣的)food? Is it because the spices make the food taste better? Is it just because their parents and grandparents and great-grandparents liked hot food，or is there some connection between spices and healthy food? Researchers from Cornell University think that it is because spice plants have some important chemicals. These chemicals can kill bacteria(细菌)which spoil food．
“Most common spices can kill 75 to 100 percent of the bacteria in food，”explains one of the scientists．The bacteria grow more easily and spoil(变质)food more quickly at higher temperatures．For this reason，it is more difficult to keep food from spoiling in hot climates，
Do you like your food spicy? Your answer probably tells something about the country you come from．If you like spicy food，it is possible that hundreds of years ago，when there were no fridges，people in your country started using spices to keep the food from spoiling．The traditional spicy dishes helped those people to live longer，healthier lives．Today，in a time of fridges，the spices just make the food taste good．
1. The chemicals in spices keep food from spoiling by_________．
A．making food taste better B．making food hotter
C．preventing bacteria getting into food D．killing bacteria in food
2. Food goes bad more quickly in hot climates because_______．
A．cold temperature makes bacteria
B．bacteria get used to hot food
C．high temperature helps bacteria grow faster
D．bacteria spoil food only at high temperature
3. According to the passage，spices are useful in the following things except_____．
A．helping you to live longer B．helping to keep you healthier
C．making your food taste better D．taking the place of fridges
1D 2C 3D
Three rich ladies met every day by the river. They sat there and talked the whole day. Once the three ladies quarreled(争吵). One of them said. “Look, how white and beautiful my hands are!” Another one said, “My hands are more beautiful.” The third one said, “Mine are the most beautiful ones.” An old beggar（乞丐） woman came up to them. “Beautiful ladies,” she said, “I’m hungry. Please give me something to eat.”
But the three ladies gave her nothing. They only asked, “Tell me, old woman, which one of us has the most beautiful hands?”
A peasant（农民）woman was also sitting by the river. She was poor and her hands were rough（粗糙的） because of hard work. The old woman came up to her and said, “I’m hungry. Please give me something to eat.” The peasant woman took out her only cake she had and gave her a half.
The old woman ate it and drank some water. Then she took the peasant woman by the hand, brought her before the rich ladies and said, “Now, I shall tell you whose hands are the most beautiful. The hands of the poor peasant woman are rough because of work, but they give us food; they are far more beautiful than your hands which have never done anything.”
1. The three ladies ___________.
A. had a quarrel every day B. were rich but unkind
C. had a talk about their hands every day D. lived by the side of the river
2. The old woman asked for something to eat, ___________.
A. but none of the three rich ladies gave anything to her
B. but only one of the three ladies gave her half a cake
C. because she wanted to know whose hands were beautiful
D. because she wanted to know which lady was the richest
3. The peasant woman’s hands were not so white as the three ladies’ ___________.
A. because of the hard work she had done B. but she was stronger than any of them
C. so she didn’t quarrel with the three ladies D. but she was more beautiful than any of them
1B 2A 3A
Sir Steven Redgrave—Winner of 5 Olympic Gold Medals
“In 1997 I was found to have developed diabetes (糖尿病), believing the profession(职业) trained for the whole of my life ended, I felt very sorry. Then one of my friends said there was no reason why I should stop training. That was it—the encouragement I needed. I could still be a winner if I believed in myself. I am not saying that it isn’t difficult sometimes. But I wanted to prove to myself that I wasn’t finished yet. Nothing is to stand in my way.”
Karen Pickering—Swimming World Champion (冠军)
“I swim 4 hours a day, 6 days a week. I manage that amount（总数） of work by putting it on top of my diary. This is the key to success—you can’t follow a profession in any field without being well-organized. Make a list of what you believe you can achieve. Trust yourself, write down your goals for the day, however small they are, and you’ll be a step closer to achieving them.”
“When things are getting hard, a voice inside my head tells me that I can’t achieve anything. Then, there are other distractions, such as family or hobbies. The key is to give most of your attention to one thing. When I feel nervous, it helps a lot to repeat words such as ‘calm’, ‘peace’, either out loud or silently in my mind. It makes me feel more in control and improves my confidence. This is a habit and is a powerful psychological(心理学的) tool.”
1. The underlined word “ distractions” probably means ________.
A. good habits B. things that make one tired
C. words to enjoy D. things that turn one’s attention away
2. The same character of the three people is________.
A. humour B. happiness C. self-confidence D. wisdom
3. The best title for the passage is ________.
A. Health and Food B. How to Be a Winner
C. Difficulties and Habits D. Be a Sportsman
1D 2C 3B
If we are asked exactly what we were doing a year ago, we should probably have to say that we could not remember. But if we had kept a book and had written it in an account(陈述) of what we did each day, we should be able to give an answer to the question.
It is the same in history. Many things have been forgotten because we don’t have written account of them. Sometimes men did keep a record of the important happenings in their country, but it was often destroyed(破坏) by fire or in a war. Sometimes there was never any written record at all because the people of that time and place did not know how to write. For example, we know a great deal about the people who lived in China 4,000 years ago, because they could write and leave written records for those who lived after them. But we know almost nothing about the people who lived even 200 years ago in central Africa because they had not learnt to write.
Sometimes, even if the people cannot write, they may know something of the past. They have heard about it from older people and often songs and dances and stories have been made about the most important happenings, and those have been sung and acted and told for many generations(代), for most people are proud to tell what their fathers did in the past. This we may call “remembered history”. Some of it has been written history because words are much more easily changed when used again and again in speech than when copied in writing. But where there are no written records, such spoken stories are often helpful.
1. Which of the following ideas is NOT included in the passage?
A. “Remembered history” is less reliable (可靠的) than written history.
B. Written records of the past play an important role in our learning of the human history.
C. A written account of our daily activities helps us to be able to answer many questions.
D. If there are no written records, there is no history.
2. We know very little about the central Africa 200 years ago because ________.
A. there was nothing worth writing down at that time
B. the people there paid no attention to the importance of keeping a record
C. the written records were perhaps destroyed by fire
D. the people there did not know how to write
3. “Remembered history” is considered as valuable only when ________.
A. it is written down B. there is no written account
C. it proves to right D. people are interested in it
4. The passage suggests(暗示) that we could have learnt much more about our past than we do now if the ancient people had ________.
A. kept a record of every past event
B. not burnt their written records in wars
C. told the exact stories of the most important happenings
D. made more songs and dances
1D 2D 3B 4A
1. If you step into this field, you will find many interesting (发明)
2. Please check that all the personal information has been (正确地) entered.
3. We were all unhappy to learn that the picnic was (取消) .
4. In fact, the film is based on (古代的) history.
1. inventions 2.correctly 3.cancelled &免费搜题cooCo.net.cnf
1. My grandfather still grows flowers in his (ninety).
2. Since Alibaba appeared on the market, Jack Ma has become the (wealth) man in Asia.
3. All the students (success) in passing the exams at last.
4. More and more (Europe) come to China for a visit every year.
1. nineties 2. wealthiest 3.succeeded 4.
1. I felt confident that our school basketball team ___________ (win) the match the next time.
2. The summer holidays are coming. Have you ever considered _____________ ( travel) abroad?
3. As soon as Justin finishes the job , he ___________ (allow) to have two weeks off.
4. --- I didn’t expect that John would be absent from my birthday party.
--- It’s said that he _____________ his grandparents in the countryside on Sundays. (visit)
5. I’m surprised to find that the price of bread (increase) by 15% in the past 6 months.
6. Tell me what you ______________(prepare) for when I called you just now.
7. Though there’s enough time, I prefer _____ (complete) the task quickly first to spend more time on my hobbies.
8. Human population growth will be probably the most serious problem if it _______(not control) properly.
1. would win 2. travelling
3. will be allowed 4. visits
5. has increased 6. were preparing
7. to complete 8. #高中Net物理gzwl.cooco.net.cn>
The disease ________________________________ the weather changed this time last year.
I wonder ___________________________________________________ or not.
He had no choice but __________________________________ because of the limited time.
The artist is good at _______________________________________ the painting brush.
Thompson is such a selfish man _____________________________ his neighbours.
The table _________________________________________ that I can’t walk around.
1. broke out as soon as
2. whether he has (had) difficulty/trouble (in) learning chemistry___
3. to cut his speech short
4. creating with/by using something special instead of ___________
5. that he can’t get on/along(well) with________________________
6. takes up so much space/room_____________________________
Every time we turn on the TV or take a ride in a car, we could be adding to a problem called acid rain(酸雨). In this article, we’ll learn something important about acid rain.
The formation of acid rain
When people use fuels (燃料), such as coal and gasoline(汽油), poisonous gases are given off. When these gases come together with rain, acid rain forms. Many power stations burn fuels in order to create the electricity(电) that we use in our homes and offices every day. Cars and trucks also send these gases into the air when they burn gasoline. When rain meets these gases, harmful things called acids form. This is acid rain.
The harm of acid rain
Acid rain destroys everything that it touches. It poisons our rivers, ponds and lakes and oceans along with the life in them. It pollutes our soils and crops, harm trees, and can even kill fish and plants. Acid rain also eats away at our buildings.
The prevention of acid rain
We need to reduce and even stop the pollution that gets into our air. Turn off lights, televisions and other electrical appliances(电器) if we are not using them. Walk and take a bike whenever possible. If we are travelling a long distance, take a bus or train to save fuel.
As research shows, acid rain harms our environment. But people everywhere can take small steps now to help protect our environment for future generations.
Whenever we use electricity or drive our cars we may add something bad to the air around us. And even worse, we may cause a terrible problem—acid rain.
The formation of acid rain
When fuels, such as coal and gasoline are burnt, harmful gases are sent into the air. When these gases 1 with rain, acid rain forms.
The harm of acid rain
Acid rain is greatly 2 to the environment. It makes our rivers, ponds and lakes and oceans dirty and 3 the death of fish and plants. And it can corrode (腐蚀) the buildings we live in.
The prevention of acid rain
Trying to prevent the pollution that gets into the air is 4 . Keep the electrical appliances off while they are not in use. We can also use different ways of traffic to make less use of fuels.
Research tells us that acid rain harms our environment. So people around the world can take small steps now to make a 5 to our kids.
2. harmful 3. causes 4. necessary 5. difference
My classmate Mike is _________________________________________________________________________________________________________________________________________________________________________________
My classmate Mike is hard-working. He likes thinking and can come up with creative ideas. In his childhood, he read many books about scientists. The story of Edison influenced him most. He is crazy about inventing things. So far, he has won several awards for inventions. Now he is busy with his study, but he has never given up his hobby. He says it’s great fun for him. His dream is to be an inventor as great as Edison. I think he will be known for his achievements and realize his dream some day.