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4. Time travel is possible. /There is no scientific proof for the idea.

4.  There is no scientific proof for the idea that time travel is pos?sible.

题目来源:全品作业本高中英语必修3新课标人教版 > Period Two Grammar

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B

   In the winter months the temperature in most of Canada usually stays below 0。C. However, in some parts of Canada, such as south-ern British Columbia, the temperature rarely goes below 0。C. In most areas where people live, snow will be on the ground from mid-December to mid-March. Though Canada's winter may be much colder and longer than you are used to, it can be very enjoyable. For many Canadians, being active in winter is an important part of enjoying life. There are many outdoor winter activi?ties, including skiing, ice fishing, walking, and skating. Joining in one of these ac?tivities may help you appreciate winter and enjoy your time outside in the snow.

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Healthy habits for living longer

By keeping your daily habits healthy? you can add years to your life. Here are some tips for living longer.

Keep daily habits healthy. Many of us are set in our daily habits. We eat the same meal, wear the same clothes, take the same route to work and work the same old job. But what we sometimes fail to recognize is the huge
influence that our daily habits can have on our health. It is very important
for us lo keep oar daily habits healthy. 16. _________

Take some exercise every day. Daily exercise does improve our health.In fact, studies show that daily exercise can add three years to our life. Opportunity for exercise is everywhere―just be creative. Whenever we can,
walk to work. 17.___________ It's really that simple.

Eat a healthy breakfast. Researchers have found that those who eat an early morning meal are less likely to be too fat and get diseases compared with those who con't. 18.___________  All in all, eating breakfast is a great

and healthy way to start our day.

   Have enough sleep. 19.___________Failing to get at least seven hours of sleep appears to increase the risk of major illnesses including cancer, heart disease, diabetes and many more.

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E.  There's an old saying that says a good friend is cheaper than treatment.

F.  Finding time for structured exercise can be much impossible for many people.

G. By making just a few small changes and sticking to them, we can add a few years to our life.

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