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It is said that many brain training products is able to keep us mentally fit. Some products even claim that brain training can prevent dementia (痴呆) in old age. Many such products are only money-making rubbish. Also, there is no scientific proof that games or other brain exercises can have this effect. That is what the German Institute for Quality and Efficiency in Health Care (IQWiG) pointed out.
As we get older, our thinking gets slower and it is harder for us to learn new things. Many people try to stay mentally fit by, for example, learning a new language or doing crossword puzzles. Computer games that aim to keep the brain active are also becoming increasingly popular. “Doing exercises like trying to find symbols on a computer screen as fast as possible can actually improve your reaction time,” explains Professor Peter Sawicki, the Institute’s Director. “But scientific studies have shown that brain training only leads to an improvement in one aspect that it is aimed at. So if you learn to find symbols quickly, it does not mean that you will be able to improve your memory.”
Research has not shown that brain training can keep up or enhance (加强) people’s overall (全面的) mental abilities as commonly thought. “So there is no need to feel bad if you do not enjoy brain training: there are no health reasons for doing it,” says Sawicki. “But if you think brain training exercises are interesting, you can try out different things. For example, completing the order of letters can improve your logic skills. And practicing word association techniques can help you to remember things better. You can do all of these things at home on your own.”
1.What can we learn about the brain training products according to the passage?
A.They are expensive. B.They are effective.
C.They are harmful to the brain. D.They are unreliable
2.According to Peter Sawicki, brain training exercises can________.
A.only improve a certain ability of people
B.help all people improve their memory
C.keep the brain active for a longer time
D.only improve your reaction time
3.The last paragraph shows that brain training exercises should be done_______.
A.when you can’t learn new things B.in a relaxing way
C.under strict instructions D.when your thinking gets much slower
4.On the whole, researchers think that brain training exercises_______.
A.aren’t as effective as commonly thought
B.are just designed for young people to have fun
C.may benefit people in some indirect ways
D.shouldn’t be encouraged
高一英语阅读理解中等难度题查看答案及解析
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Many of us don't pay much attention to the importance of eye care. It is said that if you take care of your body, then you can surely be healthy. That is why our eyes should be given a lot of care. Natural eye care should be put in a number one place.
There are several causes leading to poor eyesight like not enough food, genes (基因) and aging (老化). Televisions, computers and reading are also the causes of having poor eyesight. If you happen to work in front of the computer, it is best to take a break every once in a while. Something dirty can cause redness and they will make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water. You must also try your best to protect your eyes from harmful things. For example, sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight form UV rays.
Eating healthy foods will do good to your eyesight. Remember that vitamins A, C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercises because exercise protects your eyesight, too. If a person exercises regularly (定期地) and eats the right kind of food, his eyes will stay in good condition for a long time.
All above are natural ways of eye care that help us keep healthy eyes. Being happy all the time can be helpful to a person's eyesight, too. In a word, eye care is very important, no matter how old a person is.
1._____ is the most important way to protect our eyes.
A．Seeing the doctor B．Taking medicine
C．Natural eye care D．Being happy all the time
2.All the following causes can lead to bad eyesight except _______.
A．age B．height C．reading D．computers
3.What should you do if you have to work in front of the computer?
A．Eat healthy foods. B．Have a rest after working for a while.
C．Wear a pair of sunglasses. D．Clean the eye by using cold water
4.Which is the best title of the passage?
A．Ways of Being Happy B．Ways of Eye Exercises
C．Ways of Eye Care D．Ways of Being Healthy
高一英语阅读理解中等难度题查看答案及解析
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Teenagers may run into many problems and it is a _____ for them to be able to talk to someone who understands their problems.
A. relief B. pity
C. surprise D. shame
高一英语单项填空简单题查看答案及解析
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There were so many people on the platform waiting to ____ the train that we gave it up.
A. check B. carry C. find D. board
高一英语单项填空中等难度题查看答案及解析
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按照所学课文根据首字母、汉语提示填空，每空限填一词（共10小题；每小题0.5分，满分5分）。
1.It is important to keep c in time of danger.
2.I said hello to her, but she i me completely and walked on.
3.Although Tim and Mike came from e different backgrounds, they
became close friends.
4.His mother is ill. He is c about her health.
5.Mandela took an a part in the struggle for independence.
6.In that big fire all their houses were completely （毁了）, so they had to build new ones.
7.The new model sells well because it is of good （质量）and the price is low.
8.Please remember as many words and (词语、表达) as possible.
9.The president made an (正式的,官方的) visit to China last month.
10.The famous film star wore a pair of large sunglasses so that people wouldn’t （认出）her．
高一英语单词拼写中等难度题查看答案及解析
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This book is said to be a special one, which______ many events that cannot be found in other history books.
A. reads B. writes C. covers D. prints
高一英语单项填空中等难度题查看答案及解析
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This book is said to be the special one, Which ______ many events that cannot be found in other history books.
A. reads B. writes
C. prints D. covers
高一英语单项填空中等难度题查看答案及解析
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Ways to Keep Your Brain Young
Every brain changes with age, and mental function changes along with it. Mental decline(下降) is common, and it is one of the most worrying consequences of aging.
1. Here are some ways that can help reduce your risk of age-related memory loss.
Get plenty of mental stimulation (激发).
Any mentally stimulating activity should help to build up your brain. 2. Experiment with things that require manual(手工的) skills as well as mental effort, such as drawing, painting and other crafts.
Get some physical exercise.
3. Animals that exercise regularly increase the number of tiny blood vessels that bring oxygen-rich blood to the parts of the brain that is responsible for thought. Exercise also stimulates the brains to become more efficient and adaptive, which means having better performance.
Avoid tobacco and too much alcohol.
Avoid tobacco in all its forms and don’t abuse (滥用) alcohol. 4. And if you use alcohol responsibly, you may actually reduce your risk of dementia(痴呆). At least five studies have linked low amounts of alcohol with a reduced risk of dementia in older adults.
Other ways.
Improve your diet and eat the right food, as good nutrition(营养) can help your mind as well as your body. Stay slim and keep your blood pressure low. 5. Protect your head: moderate or severe head injuries strongly increase the risk of mental decline in old age. Build social networks. Strong social ties have been associated with lower blood pressure and longer life.
A. In fact, mental decline is not unavoidable.
B. Too much drinking is a major risk factor for dementia.
C. Experts are not ready to recommend aspirin(阿司匹林) for dementia.
D. Research shows that exercise may help your mind as well as your muscles.
E. High blood pressure increases the risk of mental decline in old age.
F. Low scores on mental tests don’t necessarily predict a risk of mental decline in old age.
G. Read, take courses, or try “mental gymnastics” such as word puzzles or mental maths problems.
高一英语七选五中等难度题查看答案及解析
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--- Is it hard to drive downtown to work?
---Yes, that’s why I _____ to work by train.
A.will have gone B.was going C.have gone D.have been going
高一英语单项填空中等难度题查看答案及解析
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Running is becoming popular these days. Many people run to keep fit. 1. However, if you’re doing it wrong, you won't get such good results. Fortunately, here are some tips to help you.
•Set right goals
2. Be smart and set the right goals. Sign up fora fun run or a 5K first, before even thinking about a marathon. Your goal should simply be to finish. If you push yourself too much, it is possible that you will get hurt and won't want to insist on running.
•Wear suitable shoes
Once you’ve decided to try out running, it's time to get yourself new shoes, as the wrong pair can cause foot pain. Wearing the wrong shoes can destroy your workout plan. 3.
•Eat properly before or after a run
Some of you don't eat before or after a workout. Your body needs energy to exercise. 4.So it's important to give your body energy. Experts suggest that you eat foods before and after a workout to help with your body's fat burning process.
• Run out of the city
If you live in a busy city, running along city streets is the easiest way to get in the miles, but if it's possible, find a less polluted space for your long runs. 5. Exposure to air pollution can cause damage to brain health and the lungs, so running at a cleaner environment might be worth the extra time.
A. Fresh air cleans our lungs.
B. It is a good, inexpensive way to get into shape,
C. It’s exciting to start running, but don’t set your goals too high.
D. Another side effect of skipping meals is to make you feel tired.
E. And not eating properly will affect your mental and physical being,
F. Therefore, before running, you should go to the shoe store to buy a new pair of running shoes.
G. Research shows that running in polluted air doesn’t give you the same benefits (好处) as running in clean air.
高一英语七选五中等难度题查看答案及解析
