Many places in the world need more fresh water. Every country is trying to find ways to turn salt water
into fresh. Why aren"t there many factories like the Symi factory?
In some places, the sun is not hot enough. Or it does not shine every day. In such places, other ways of
heating sea water can be used. These ways cost more money, but they work faster than the sun. By boiling sea
water with high heat, a lot of fresh water can be made quickly.
But heating is not the only way to get fresh water from salt water. Other ways are tried. One way is
freezing. The fresh part of salt water freezes (冷至结冰) first. To get fresh water, the bits of ice are taken out.
Which way is the best? The one that gives the most water for the least money. It may be a different way
for each place.
Symi"s way seems very good for small, hot places. It doesn"t make very much water at a time. But the
factory is easy to build and costs little. That is why people in many dry places talk about Symi!
Scientists are trying to turn deserts into good land again. They want to bring water to the deserts, so
people can live and grow food there. However, more and more land is becoming desert. Why? Scientists think
that people are doing bad things to turn good land into desert.
①地球上的一些地方雨量不足, but they still do not become deserts. This is because green plants are
growing there. Small green plants and grass are very important to dry places. Plants do not let the hot sun
make the earth even drier.②Plants do not let the wind blow the soil away. When rain falls, plants hold the
water.③Without plants, land can become desert much more easily.
1、将①处的汉语译成英文.
2、将②处的英文译成汉语.
3、将③处的英文译成汉语.
4、What should we do in order to protect good land?
life to every living thing. Without it we can not live. Bad air makes people ill. We must have fresh air to
keep us in good health.
In the city there are a great many people and there are too many cars running on the roads. The gas
which the cars spread out is full of poison. Everyday we breathe it in again and again. This makes us feel
sick. Therefore people should go out of door as much as they can.
Besides so many cars, there are many factories too. From the chimneys of these factories, we get the
smoke usually in black or grey colour. This kind of smoke, when it mixes the air, is dangerous to our health.
It is because smoke contains many small poisonous solids and gases. So in order to keep us healthy we have
to go out to the countryside to breathe more fresh air. Or we can go up hills to get more fresh air.
B: Fresh Air
C: Breathing Air
D: The Use of Air
Do you plan to go to Hong Kong Disneyland with your family? If your dad smokes, you must ask him
to be careful. From January 1, 2007, Hong Kong bans smoking in most public places.
The places include restaurants, workplaces, schools and karaoke rooms. Even smoking in some outdoor
places like beaches, sports grounds, museums and parks is against the law.
Hong Kong hopes the ban can prevent passive smoking. It does great harm to people"s health. And it"ll be
better if more people in Hong Kong give up smoking because of the ban.
Hong Kong has 7 million people. Among them, about 840,000 people aged 15 or above are smokers.
Amy Choi, 27, a student, agrees to the smoking ban."I don"t like people smoking next to me. It"s so smoky
and smelly," she said.
If someone breaks the ban, he will have to pay up to HK$5,000.The ban does not include nightclubs, bars
or bathhouses yet. But these places will have to ban smoking by July, 2009.
Hong Kong is not the first Asian city to have a smoking ban. On January 1, 2006, Singapore banned
smoking in most public places.
B. in schools
C. in karaoke rooms
D. none of the above
Are you sleeping on illegal trees-trees from the Congo? Is your kitchen table made from wood, which
has started social conflict in a distant African country? Are you literally flushing an ancient forest down the
toilet? Check out our interactive Forest House to see exactly where your household goods come from and
the forest-friendly alternatives.
The Earth"s ancient forests are unique, centuries old regions that support countless plant and animal
species as well as native communities. But they are rapidly vanishing (消失) as the demand for wood and
paper grows. In fact, only 20 percent of the world"s ancient forests remain-a very scary statistic. Our
comfy houses are contributing to the problem-in Europe, 50 percent of the tropical wood used in our
furniture, doors and window frames is logged illegally, often from irresponsibly managed ancient forests.
This wood often fuels corruption and social conflict and destroys the homes of endangered or
undiscovered species.
Our interactive Forest House is a room-by-room (and garden) guide to wood in household products,
featuring everything from flowerboxes to guitars. You can also learn exactly why wood is "good" or "bad"
and print out our one-pager to stick on the fridge and check before you make that trip to IKEA. The Forest
House also lets you search by product, so if you"re on the lookout for a new hat stand or toilet seat, you"ll
know you should give teak a miss.
In general, the safest wood is always Forest Stewardship Council (FSC) certified. This means that the
wood is from a sustainable (可持续的) managed forest and that the rights of indigenous peoples are
respected during the logging process. Some homeware stores such as IKEA and Home Depot (in the US)
have made commitments to only source FSC certified wood for their products.
B. 20%
C. 50%
D. 80%
It makes our health better to take morning exercises. The air is never so fresh as early in the morning. Early
rising helps us in our studies. In the morning we learn more quickly and find it easy to learn something by
heart. Early rising makes people able to plan the work for the day. We can"t work well without a good plan.
Just as the plan for the year should be made in the spring, the plan for a day should be made in the morning.
Early rising gives us enough time to get ready for our work, such as to wash our hands and eat our breakfast.
So the popular saying says, "Early to bed and early to rise makes a man healthy, wealthy (富有的) and wise."
B. getting up
C. having breakfast
D. making a day"s plan
- 1若正比例函数的图象经过点(2,6),则其解析式为______.
- 2The box is too heavy, I need _____ it for me. [ ]A. he c
- 3物质的性质在很大程度上决定物质的用途。以下性质和用途的对应不正确的是 [ ]A. 金属钨的熔点高---可作保险
- 4下图中a、b、c线为等压线,箭头表示A地风向,d、e线为等温线,f线为等高线。读图回答下列各题。小题1:根据图中信息可以
- 5下列说法中正确的是[ ]A.太阳光与湖面成60°角,被湖面反射出的光线与湖面成30°角 B.在光的反射现象中,入
- 6情景对话(每空一词)。A: Where 1. ______ my keys?B: 2. ______3. ______
- 7互为同素异形体的是A.168O与188O B.CH4与C2H6C.红磷与白磷D.正丁烷与异丁烷
- 8阅读以下材料:随着经济全球化的发展,各国之间的各种联系也日益紧密,人们关心的共同问题也越来越多。据此,回答以下问题。(1
- 9水结成冰体积增大,现有体积为 a的冰融化水成后体积为( )A.aB.aC.aD.a
- 10汽车是我们必不可少的交通工具,但是为了安全,(1)要对汽车的行驶速度进行限制,其包含的物理原理为:___________
- 1组成人体血红蛋白的一种必须的无机盐是( )A.钙B.磷C.铁D.碘
- 2下列情况不属于按国家规定获得法律援助的是( )A.追索赡养费案件B.工伤案件C.国家赔偿案件D.犯罪嫌疑人家属不愿为
- 3把2425,204205,20042005这三个数用“>”连接起来的结果是______.
- 4在□ABCD中,已知∠A=110°,则∠D=( )。
- 5如图所示,水平地面上有两块完全相同的木块A、B,水平推力F作用在木块A上,用FAB表示木块A、B间的相互作用力,下列说法
- 6在半导体生产或灭火剂的使用中,会向空气逸散气体如:NF3、CHClFCF3、C3F8,它们虽是微量的,有些确是强温室气体
- 7 如图,、是⊙的切线,切点是、,已知,,那么的弧长为( ).A.B.C.D.
- 8下图中,X、Y分别为晨昏圈与纬线圈的切点。据图回答1~2题。 1、X、Y两点情况相同的是[ ]A、太阳所在方向B
- 9如果命题p的逆命题是q,命题p的否命题是r,则q是r的( )A.逆命题B.否命题C.逆否命题D.以上均错
- 10 Unfortunately, the couple _______ after years of quarrels