Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both  1 , plant a lot of trees. But this may not be the best way to make your home a  2 place.

   Last week we visited a park in Hebei. We were  3  to find most of the trees had been burned. The workers told us that the trees 4 soon after they were planted because they weren't watered well enough. 5workers burned them and cleaned the place for 6 trees to be planted this year. 7 a card found in one of the dead trees, a student wrote, ＂I hope this tree will grow up with me to   8   the backbone(栋梁) of our country.＂The workers said that the survival(存活) of the trees was really more important than  9   trees were planted.

    Some people in Beijing now have a new idea that they can donate(捐赠) some money and let professionals (专业人士) plant and  10  the trees.

A. no longer    B. completely   C. compete    D. given up   E. encourage

   Though the sale of bottled water is still on the rise. Certain policy makers have taken steps to reduce it and {#blank#}1{#/blank#} people to drink tap water. In September 2009, the Australian city of Bundanoon became the first city in the world to {#blank#}2{#/blank#} stop bottled water from being sold in stores, building water fountains instead.

   Among the cities in America that have taken action are San Francisco and Seattle, which {#blank#}3{#/blank#}buy water for city use, and Chicago which adds a five-cent tax on each bottle. Several restaurants in those cities have also {#blank#}4{#/blank#} bottled water for tap water. Other cities are also considering taking action.

    Global warming means the temperature of the Earth is getting higher and higher. If the Earth gets 1, some of the following things could happen:

    The sea level could 2 because of the melting of sea ice.

    Many animals that live on the ice might 3 out.

    There could be more floods(洪水), 4 near the sea and rivers.

    Some plants and animals might die because they cannot live in high 5.

    Global warming is a very 6 problem now. There is something we can do to help to slow it down.

    Scientists have been studying global warming for years. They have found that some things that people do in everyday life make much gas that 7 global warming. One big cause of this is the burning of oil, gas and coal for energy for our cars and homes. This gives off too much greenhouse gas. We can do something to cut 8 on the amount of greenhouse gas.

    ⒈ We can really help by using less energy in life, and less gas in our family cars. We should turn off the 9 and turn down other electrical equipment. We should walk more and use cars less.

    ⒉ 10 can take in some of the greenhouse gas. So we should plant more trees.

    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 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 from ultraviolet 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 exercises protect 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.

The weather is getting hotter and hotter. You are thirsty playing basketball or riding home from school. A cold drink may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for your health.

There are plenty of "energy drinks" advertisement on TV. Most of them have beautiful colors and cool names. They tell you they are helpful to your health. Sounds great and lots of people believe them!

But after a careful check you may find that most energy drinks have lots of caffeine (咖啡因) in them. These drinks are especially aimed at young people, students, busy people and sports players. Makers sometimes say their drinks make you better at sports and can keep you awake. But he careful not to drink too much.

Caffeine makes your heart beat fast. Because of this, the International Olympic Committee has limited (限制) its use. Caffeine in most energy drinks is as strong as that in a cup of coffee or tea. Possible health dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them.