Man still has a lot to learn about the most powerful and complex part of his body — the brain.
It may be surprising to learn that it isn’t age that makes you lose your memory. The reason could be that you have a "lazy" memory, not an old one. Like your body your memory improves with exercise. Once given plenty of exercise, the brain keeps its power. Before discussing how to improve the memory, let’s look at how the brain works. There are two sides to the brain, the left and the right. The right side deals with the senses (what we see, hear, feel and smell). It's the creative and imaginative side. The left side is concerned with logic. It analyzes information and puts it in order.
Some recent research suggests that we remember everything that happens to us. The problem most of us has is recalling events. Most forgetting takes place immediately after learning. An hour after learning something new, more than 50% has been forgotten. After a month, 80% has been forgotten, and so on.
This shows revision is very important. If you revise new material you have learnt, you remember much more. So it's of vital importance to revise newly learned material often, and have frequent breaks. We best remember what we learn at the beginning of a learning period and at the point where we stop. After the break, revise what was learned before the break and then continue learning the new material. These breaks should happen every 20 or 45 minutes.
Other experiments have shown the brain needs time to "digest" what has been learned. The time necessary for this is 5 to 10 minutes. After the break, the memory will have absorbed what it has just learned, and more will be remembered. During this period it is important to exercise the right side of the brain, because the left side is used during the learning period. Therefore you should relax. Listening to music, breathing in fresh air, and looking at a picture are all ways of using the other side of the brain. So when you are studying alone, make a plan which shows when to have breaks and to revise newly learned material immediately before you begin studying again. If you do in this way, your memory will improve.
1.According to the text, you lose your memory by ________.
A. getting too old B. hardly using your brain
C. working too hard D. using your brain too much
2.To fight forgetting effectively, we're advised to ________.
A. go back to what was learned regularly
B. break down materials into small pieces
C. focus on both ends of a learning period
D. take breaks to give the brain a good rest
3. During the learning process the brain need breaks to ________.
A. use the right side of the brain
B. revise newly learnt materials
C. take in what has been learnt
D. relax the left side of the brain
4.Where is this text most probably taken from?
A. Science fictions. B. Students’ literature.
C. An advertisement. D. A science report.
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短文改錯(cuò)
假定英語課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下作文。文中共有10處語言錯(cuò)誤,每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。
增加:在缺詞處加一個(gè)漏字符號(),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線()劃掉。
修改:在錯(cuò)的詞下劃一橫線,并在該詞下面寫出修改后的詞。
注意:1.每處錯(cuò)誤及其修改均僅限一詞;
只允許修改10處,多著(從第11處起)不計(jì)分。
My parents have decided to take me to Britain for a visit. I am excited, hoped to make good use of this opportunity. Firstly, I will talk to native speaker as much as I can improve my English. Secondly, there are many attractions that interests me a lot, among which is Big Ben, Besides, football, that is popular in England, is my most favorite sport. I have been dreaming of watching a living football match there but now the dream will come true. My friend Alice lives in London. I will probable meet her. However I do, I am sure I will have a good time.
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Los Angeles Times reported that researchers may have found a way to ______ human life by changing certain genes, so that humans might expect to live twice as long.
A. extend B. preserve
C. multiply D. transform
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Scientists have produced new evidence suggesting eating lots of red and processed meat damages health.They found big meat eaters had a raised risk of death from all causes over a 10-year period.In contrast, a higher intake of white meat was associated with a slightly reduced risk of death over the same period.
The US study, based on more than 500,000 people, found those whose diet contained the highest proportion (比例) of red or processed meat had a higher overall risk of death, and specifically a higher risk of cancer and heart disease than those who ate the least.
People eating the most meat were eating about 160g of red or processed meat per day— approximately a 6oz steak.Those who ate the least were only getting about 25g per day— approximately a small piece of bacon.Just the opposite, those who ate the highest proportion of white meat had a lower risk of overall death, and a lower risk of fatal cancer or heart disease than those who ate the lowest proportion.
Meat is a major source of saturated (飽和的) fat, which has been associated with breast and colorectal cancer.In addition, lower meat intake has been linked to a reduction in risk factors for heart disease, including lower blood pressure and cholesterol (膽固醇) levels.The latest study adds to a growing body of research linking high red and processed meat consumption to an increased risk of ill health.Ed Yong, of the charity Cancer Research UK, said, “Evidence from large studies tells us that cutting down on processed food, such as bacon or burgers, can reduce the risk of dying from cancer and other diseases.”
Dr Barry Popkin of the University of North Carolina stressed there were health benefits from eating some red meat.But he added: “The need is for a major reduction in total meat intake, an even larger reduction in processed meat and other highly processed and salted animal source food products and a reduction in total saturated fat.” Dr Mark Wahlqvist, a nutrition expert from Australia, said eating small amounts of red meat—around 30g a day—provided a good source of key nutrients.He said, “Fresh, lean red meat of these amounts is likely to be of more benefit than harm.”
1.According to the passage, we know ______.
A. big meat eaters eat a 6oz steak per day
B. big meat eaters have heart disease ten years earlier
C. people eating more meat will suffer from a heart attack
D. people eating more red meat have a higher risk of death
2.Processed meat is a kind of ______.
A. red meat
B. white meat
C. vegetable with a similar taste of meat
D. meat prepared by producers
3.According to the passage, how should we eat red meat in a healthy way?
A. We should eat red meat as we like.
B. We should eat proper amount of red meat per day.
C. We should reduce the amount of fresh, red lean meat.
D. We should completely cut out red meat from our diet.
4.What does the passage mainly talk about?
A. Too much red meat consumption contributes to ill health.
B. A well-balanced diet accounts for a healthy life.
C. A higher intake of white meat brings benefits.
D. Red meat contains saturated fat.
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Maybe you don’t think animals have certain mental powers which human beings do not have.But the truth is that some of them have instincts,and besides this,I am sure they can feel certain things we humans cannot.A personal experience showed me this.
Some years ago,I had a dog named Howard.From the time when he was a puppy,he was timid,so we named him Howard,sounding like “coward”!He was especially afraid of thunderstorms.At the first flash of lightning or crash of thunder,he would run whining into his house and hide under a table.
I often went for a walk with Howard.Once,as we were walking along a road,it began to rain.I quickly ran to a bus stop for shelter.The bus stop had a roof supported by metal poles.Soon after I had got there,Howard caught my trousers in his teeth and tried to pull me away.At first I was puzzled and a little angry at his behavior.But I decided to humor him and walked away from the shelter into the rain and started to go home.
When I was about two hundred metres from the shelter,there came a flash of lightning and soon after,there was thunder which nearly deafened me.Howard stopped walking and began whining.Thinking he was afraid,I bent to pick him up.As I straightened up,I glanced at the bus shelter we had just left.I was shocked to see that two of the poles were bent and the roof was lying on the ground,broken.The shelter had been struck by the bolt of lightning!
1.The author named his dog Howard mainly because of_______.
A. his timid characteristic
B. one of the author’s friends Howard
C. his loud sound
D. his strange behaviors
2.The reason why the author was puzzled and angry with the dog was that_______.
A. Howard had a strange behavior
B. Howard should be afraid of the metal poles
C. Howard should know the approaching of the terrible lightning
D. Howard bit his trousers in his teeth
3.Which of the following is true according to the passage?
A. Dogs are cleverer and better than men.
B. Dogs are usually afraid of thunderstorms.
C. Some animals can feel certain things humans cannot.
D. Dogs are naturally born heroes.
4.What can be inferred about the bus shelter from the passage?
A. It was about 200 meters from the author’s home.
B. It was destroyed in a rainy day.
C. Its roof was supported by wood poles.
D. It could produce blinding flash of lightning.
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完形填空
As I held my father’s hands one night, I couldn’t help but notice their calluses(老繭)and roughness. His hands tell the story of his life as a , including all his struggles.
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Dad is also a living example of real . From dawn to dusk, he works countless hours to________ our family. He always puts our happiness his own, and never fails to cheer me on at my sports games his exhaustion after long days. His loving and selfless nature has inspired me to become more sympathetic and _______,putting others first.
Dad,the life I have learned from you will stay with me forever. You are my father, teacher, friend and, most importantly, my hero.
1.A. teacher B. farmer C.gardener D. grocer
2.A. burning B. lively C. disappearing D. stormy
3.A.position B.form C. gap D. order
4.A. repeatedly B. finally C. normally D. really
5.A. begin B. go C. occur D. change
6.A. yet B. even C. still D. nearly
7.A. surprised B. angry C. nervous D. frightened
8.A. apologized B.laughed C. complained D. cried
9.A. lost B. gone C. done D. touched
10.A.thinks about B. brings up C. works out D. meets with
11.A. Thankfully B.Unfortunately C. Hopefully D. Strangely
12.A. or B. but C. so D. for
13.A. happened B. seemed C.aimed D.continued
14.A. appreciate B. face C. examine D. question
15.A. pride B. love C. friendship D. honesty
16.A. start B. settle C. support D. impress
17.A. after B. beside C. before D. under
18.A. in control of B. in terms of C. in spite of D. in place of
19.A. careful B. considerate C. regretful D. humorous
20.A. history B. motto C. lessons D. patterns
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My father warned me ___________ going to the West Coast because it was crowded with tourists.
A. by B. on C. for D. against
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A great part of the information I have was ________ by looking up something and finding something else on the way.
A. requested B. acquired C. exchanged D. presented
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信息匹配(共1小題)
根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填人空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng),
My mother is a diligent and kind woman.She is very busy from morning till night.As a teacher, she works hard. 1. Both my brother and I love her dearly as she loves us.
My mother has been teaching math at a middle school in my hometown.She goes to work early in the morning and does not return home until late in the afternoon. 2. She treats them with patience and teaches them well.For her excellent quality and very good teaching results, she has been elected as a model teacher several times.
3. Every day, when she comes back home from work, she sets about doing housework, sweeping the living room and bedrooms or cleaning the furniture, and putting everything in good order.She seems to be busy all the time.As she has been very busy working every day, she looks older than her age.But she looks as cheerful and happy as ever.Mother never buys expensive dresses for herself, but she often buys some inexpensive but high quality clothes for us. 4. She just eats a plain meal outside when she is too busy to cook herself.She lives a busy yet simple life, without any complaints.
Often she says to us, “work while you work, and play while you play.That is the way to be happy and gay.If you do not work, you will become lazy and be of no use to society”.What a piece of good advice this is! 5. This advice of hers will always serve as a guide to my behavior.My mother is great indeed, and I always feel proud of her.
A.As a mother, she takes good care of us and gives us every comfort.
B.She loves her students and cares for them.
C.She never goes to expensive restaurants to enjoy meals.
D.She enjoys listening to classic music.
E.I never forget it and always bear it in my mind.
F.Can you tell us something about your mother?
G.My mother is hard-working and never wastes money.
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