It's free and requires no equipment. Besides, the scenery can be amazing. It's no wonder running is among the world’ s most popular sports. Research suggests running can significantly improve your health. 1.
Running just once a week, or 50 minutes a week, reduces the risk of death at a given point in time. 2. This is good news for those who don't have much time on their hands for exercise. But it shouldn't discourage those who enjoy running longer and more often. We found even "hardcore" running (for example, every day or four hours a week) is beneficial for health. Nor do the benefits necessarily increase by running at high speeds. We found similar benefits for running at any speed between 8 and 13 km/h. It might be that running at your own "most comfortable pace" is the best for your health.
3. Running may lead to overuse injuries. These occur as a consequence of repeated mechanical stress on the tissue without enough time for recovery. Sudden death is also likely to happen during exercise, though, this occurs very rarely.
Therefore, for beginning runners, start slow and gradually increase the pace, duration and weekly frequency. Set your aim at 50 minutes a week or more, and run at a comfortable speed.
If you don't like running alone, consider doing it along with others. 4. It can be hard to start running, but it shouldn't be too hard. 5. There are more than 800 other interesting sports to choose from. The benefits of many other sports (such as swimming, tennis, cycling and aerobics) are comparable to the ones found for running.
A.If you don't like running, don't force it.
B.However, keep it in mind that there are risks as well.
C.It also indicates you needn't run fast or far to gain the benefit.
D.It can increase your motivation and provide a fun social experience.
E.Running may help you live longer but more isn't necessarily better.
F.The benefit doesn't seem to increase or decrease with higher amounts of running.
G.Doing it in many sessions spread across the week brings much more benefits.
高三英语七选五简单题
It's free and requires no equipment. Besides, the scenery can be amazing. It's no wonder running is among the world’ s most popular sports. Research suggests running can significantly improve your health. 1.
Running just once a week, or 50 minutes a week, reduces the risk of death at a given point in time. 2. This is good news for those who don't have much time on their hands for exercise. But it shouldn't discourage those who enjoy running longer and more often. We found even "hardcore" running (for example, every day or four hours a week) is beneficial for health. Nor do the benefits necessarily increase by running at high speeds. We found similar benefits for running at any speed between 8 and 13 km/h. It might be that running at your own "most comfortable pace" is the best for your health.
3. Running may lead to overuse injuries. These occur as a consequence of repeated mechanical stress on the tissue without enough time for recovery. Sudden death is also likely to happen during exercise, though, this occurs very rarely.
Therefore, for beginning runners, start slow and gradually increase the pace, duration and weekly frequency. Set your aim at 50 minutes a week or more, and run at a comfortable speed.
If you don't like running alone, consider doing it along with others. 4. It can be hard to start running, but it shouldn't be too hard. 5. There are more than 800 other interesting sports to choose from. The benefits of many other sports (such as swimming, tennis, cycling and aerobics) are comparable to the ones found for running.
A.If you don't like running, don't force it.
B.However, keep it in mind that there are risks as well.
C.It also indicates you needn't run fast or far to gain the benefit.
D.It can increase your motivation and provide a fun social experience.
E.Running may help you live longer but more isn't necessarily better.
F.The benefit doesn't seem to increase or decrease with higher amounts of running.
G.Doing it in many sessions spread across the week brings much more benefits.
高三英语七选五简单题查看答案及解析
------The school is well equipped.
------Yes, and every student has free ________to the library.
A. chance B. right C. use D. access
高三英语单项填空中等难度题查看答案及解析
The science of papermaking addresses the methods, equipment, and materials used to make paper and cardboard, these being used widely for printing, writing, and packaging, among many other purposes and useful products. Today almost all paper is produced using industrial machinery. 1.
The method of manual（手工的）papermaking changed very little over time, despite advances in technologies.2.Separate the useful fibre from the rest of raw materials. Beat down the fibre into pulp（纸浆）.Adjust the color, chemical, biological, and other properties of the paper. Screen （筛选）the resulting liquid. Press and dry to get the actual paper.
3. It is made of stainless materials and set in a wooden frame similar to that of a window. Then completely bathe it in the liquid and draw it out. Water is removed and the wet mat of fibre is laid on top of a damp cloth. The fairly damp fiber is then dried. Finally, the paper is then cut to the desired shape and packed.
The wooden frame is called a “deckle” （定纸框）. 4. The “deckle edges” are one of the indications that the paper was made by hand. Deckle-edged paper is occasionally imitated today to create the impression of old-fashioned luxury.
5. It is also used in paper factories to check the quality of the production process. The “handsheets" made according to TAPPI Standard T205 are tested for paper characteristics such as brightness, strength and degree of sizing.
A.Screening the fibre involves using a special net.
B.The process of papermaking is really complicated.
C.It leaves the edges of the paper slightly irregular and wavy.
D.In laboratories handmade paper is prepared to study papermaking.
E.However, traditional papermaking in Asia uses the inner skin fibres of plants.
F.The process of manufacturing handmade paper can be generalized into five steps.
G.But handmade paper is still appreciated for its distinctive uniqueness and the skilled craft.
高三英语七选五困难题查看答案及解析
263. The bank is equipped with new alarm _____. We can say it’s safe and reliable completely.
| A．system | B．way | C．order | D．Setting |
高三英语单项填空简单题查看答案及解析
The bank is equipped with new alarm________. We can say it's safe and reliable completely.
A．method B．way C．order D．system
高三英语单项填空中等难度题查看答案及解析
Modern equipment and no smoking are two of the things I like ______ working here. But whether to stay or leave is ___________.
| A．with; on you | B．about; up to you | C．at; up to you | D．over; beyond you |
高三英语单项填空中等难度题查看答案及解析
Modern equipment and no smoking are two of the things I like ____ working here.
A. with B. over C. at D. about
高三英语单项填空中等难度题查看答案及解析
Modern equipment and no smoking are two of the things I like ____ working here.
A. with B. over C. at D. about
高三英语单项填空中等难度题查看答案及解析
Modern equipment and no smoking are two of the things I like ____ working here.
| A．with | B．over | C．at | D．about |
高三英语单项填空中等难度题查看答案及解析
Wikipedia is a free-access, free content Internet encyclopedia(百科全书), supported and hosted by the non-profit Wikipedia Foundation. Wikipedia is ranked among the ten most popular websites and is considered the Internet’s largest and most popular general reference book. Now, Wikipedia is becoming Wookiepedia as scientists hope the informative website will help us reach out to intelligent life forms. So aliens can learn about the human race.
Astronomers would like to beam (播送) the entire contents of Wikipedia into space in the hope of contacting aliens. They want to send messages to hundreds of star systems and planets 20 light years away using radio telescopes. The Search for Extraterrestrial Intelligence Institute, in California, wants to use powerful radio telescopes to try to reach Chewbacca and his mates in a galaxy(银河系)far away.
The plans will be discussed by astronomers at the weekend as some scientists fear the reply from ET might not turn out to be friendly. Institute scientist David Black said, “One question is if there are dangerous creatures we might be drawing their attention to ourselves. Another is if we go ahead, what message should be sent? There could be many civilizations out there，but if they are all listening and no one is broadcasting or responding, then nothing will happen.”
Professor Stephen Hawking, who has warned that intelligent aliens probably exist and we should keep a safe distance from them, is among those. “If aliens visit us, the outcome would be much as when Columbus landed in America which didn’t turn out well for the Native Americans,” he said.
Signals from Earth’s radio and TV broadcasts have been heading out in space for some 60 years reaching around 5,000 stars.
1.What does the underlined word those in the fourth paragraph refer to?
A. aliens from space
B. astronomers sending signals
C. scientists for the plans
D. scientists against the plans
2.What has Prof. Stephen Hawking warned?
A. intelligent aliens would probably land in America.
B. the plans will be in vain and nothing will happen.
C. none of the civilizations would reply.
D. aliens would bring disasters to the human race.
3.Which can be the best title?
A. Wikipedia, the most popular website
B. Wikipedia to be beamed into space
C. Wikipedia, aliens’ best friend
D. Wikipedia to result in a disaster
高三英语阅读理解中等难度题查看答案及解析