第二节 下面文章中有五处需要添加首句,请从A到F的六个选项中选出符合各段主题的句子,完成第31-35题。(其中一项为多余选项。)

How to ride a bicycle in traffic

Cycling in traffic is something that seems dangerous but can be quite safe as long as you obey the rules of the road and exercise alertness (机敏)and common sense. Here are some tips for you.

1.A helmet(头盔) won’t prevent accidents. But it can save you from serious head injuries if you are in an accident. That’s why it’s always safer to wear it when cycling.

2. So always have lights if it is not very bright out, and if you cycle in the evening, reflective clothing is a great idea. The more obvious you are to drivers, the less likely they are to hit you.

3.Start from the easy streets. Pick some quiet back streets and get used to being around cars and other road traffic Gradually build up your stamina(耐力) on larger roads by practicing on them on quiet days.

4. Always ride with the traffic. Stay off sidewalks, stop for red lights, stop at stop signs, and obey all other traffic signs. Don’t run red lights no matter how many other cyclists do it. Your good habits can help improve others’ safety awareness.

5. If you need to talk on your cellphone, stop and pull over. Don’t listen to an MP3 player or radio. Some cars are very difficult to hear, so you need to pay careful attention to not get run over by them.

A. The wearing of helmets is a requirement in many countries.

B. If you’re an inexperienced cyclist, it is not a good idea to throw yourself in the heavy traffic.

C. Make sure you are comfortable with your bike.

D. You should always pay attention to the rules of the road.

E. Most accidents happen when drivers haven’t noticed a cyclist.

F. Avoid doing things that will affect your ability to hear cars coming up behind you

Ⅶ. Read the passage carefully and complete the table with only one word for each blank.

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(紫外线).

Eating healthy food 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 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 also be helpful to a person's eyesight, too. In a word, eye care is very important, no matter how old a person is.

Title: How to protect your eyesight

Causes of poor eyesight

Pay 1. attention to the importance of eye care.

Not enough food.

Genes and aging.

2. TV, use computers and do reading too much.

3.of eye care

Stop to 4. for a while when you work in front of the computer.

Keep your eyes clean by using cold water.

Protect your eyes from harmful things.

Eat healthy food.

Do eye exercises regularly.

5. can also help you keep good eyesight.

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