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We live in a time （) , more than ever before in history, people are moving.
A.what
B.when
C.which
D.where
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A.what
B.when
C.which
D.where
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更多“We live in a time （) , more th…”相关的问题
A.cut
B.kill
C.live
D.kick
Biologists today don’t expect that anyone will find a magical fountain of youth.Growing older is a natural part of the life cycle that can’t be reversed.As human beings grow older, organs such as the heart and lungs may stop functioning properly.Sight and hearing may become weak.And the human body becomes more likely to come down with serious illnesses from which it cannot recover.
Considered together, changes that bring about the decline of an organism are called aging.Because of aging, many biologists believe that there may be a maximum age limit to which even the healthiest organisms can live.For human beings, this maximum age limit is about 110 years.
Perhaps the most important thing that you can learn from your study of human biology is that you have a lot of control over the aging process in your own life.In fact, within our control are many physical and mental factors that have much to do with aging.For example, each of us, as recent research indicates, can do many things to help prevent heart and vessel disease, which causes half the death each year in the United States.We can avoid eating a lot of fatty meat.Eating too much of these types of animal fats can lead to the clogging and hardening of blood vessels.We can cut back on smoking and hopefully quit entirely.We can limit the amount of alcohol we drink and the amount of sugar we eat.We can exercise regularly and strengthen the heart and other organs.And we can remember to take time out each day for ourselves, time just relax.Exercise, recreation and relaxation all reduce stress – inner tension that is hard on all body organs.
One final thing we can do is to try to keep aware of advances made in health education.Information is often available free of charge from health clinics or schools.
1.Which of the following is the leading cause of death in the United States？
A.Heart disease.
B.Cancer
C.Alcohol
D.Smoking
2.What happens as people grow older？
A.They dream of a magic pill to help them live a happy and long life
B.They come down with serious illnesses
C.Their organs become weak and may stop working properly
D.Their blood vessels become clogged
3.In the opinion of biologists, _________.
A.the aging process can be reversed
B.the aging process can be controlled and slowed down
C.the aging process can be got rid of
D.the aging process can go beyond its limit
4.We can slow down the weakening of all our body organs by ______.
A.not eating animal fat
B.limiting drinking and smoking
C.exercise, recreation and relaxation to reduce stress
D.preventing the clogging and hardening of blood vessels
5.Besides physical and mental factors, which of the following also contributes to living a long and healthy life according tot the passage？
A.Health education
B.Traditional medicine
C.artificial organs
D.The invention of magic pills
A、linear
B、cyclical
C、inescapable
D、fixed
A.why
B. when
C. to whom
D. on which
A.vent
B.open
C.relieve
D.relax
A.has begun
B.had begun
C.has been on
D.had been on
Living in Brazil (巴西)and Switzerland
Moving to a different city may seem difficult. You have to change schools and get used to your new home. But you can always go back to that city to visit. When you move to another country, things are different. However, difficult as it may be, the experience can be rewarding.
My dad, a Brazilian, is really funny and can make friends quickly. My mom, a Swiss, is usually quiet and a bit shy. She likes to be organized， But my dad never makes plans. She enjoys staying home, but my dad always wants to go out. Swiss and Brazilian一what a mix!
After my parents got married, they moved to Switzerland. There they had my brother and me. When I was two, we moved to Brazil. During my childhood we visited Switzerland every year.
Many people ask me where I prefer to live: Brazil or Switzerland. It's really hard to answer because I love both countries. Brazil is a big country with many states and people. There are multiple dialects and many types of foods. People here have beautiful smiles and are always happy, even if they are poor. In the south the climate is cool, but in the north It's hot and humid.
Switzerland, on the other hand, is small but beautiful and clean. There are four languages in that tiny country. People there are very different from Brazilians: they are wealthy, independent, and organized. The food is delicious, and of course, the famous Swiss chocolate is great, and the climate is dry and cool.
I love both countries. In Switzerland, it's pleasant, calm, and peaceful everywhere. I enjoyed my stay there very much. But now I am happy here in Brazil. I feel excited and at home.
11. The author's parents___.
A. share similar interests
B. have different jobs
C. have different personalities
D. enjoy reading books
12.When the author was a child, the family used to___.
A. have many good friends
B. move between the two countries
C. speak two dialects
D. visit Brazil from time to time
13.The author thinks Brazilians are___.
A. organized
B. independent
C. indifferent
D. optimistic
14. According to the text, Switzerland___.
A is famous for its chocolate
B. has many big cities
C. has a lot in common with Brazil
D. is hot and humid
15. According to the author, living in two different cultures is a(n)___.
A. appealing idea
B. difficult decision
C. expensive choice
D. pleasant experience
A.它的全称是time to live
B.TTL时间越长系统负担越轻
C.TTL时间设置的时间越长越好
D.在广播域的记录变动频繁中TTL设置的时间短些会非常有用
