题目
题型：不详难度：来源：
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 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 does not make 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.
小题1:From the passage we know that fresh water _____________.
| A．is needed in many countries | B．is needed in every country |
| C．can be used in many ways | D．is very important for factories |
| A．turns salt water into fresh | B．can be built everywhere |
| C．can make much fresh water at a time | D．doesn’t need sunshine every day |
| A．Boiling the sea water. | B．Heating the sea water. |
| C．The Symi’s way. | D．Freezing the sea water. |
| A．New ways of getting fresh water. |
| B．A lot of fresh water can be made quickly by heating. |
| C．The best way is to get the freshest water with the least money. |
| D．The Symi’s way doesn’t work in dry places. |
| A．small | B．hot | C．cool | D．dry |
答案
小题1:B
小题1:A
小题1:C
小题1:D
小题1:C
解析
小题1:根据Many places in the world need more fresh water. Every country is trying to find ways to turn salt water into fresh.可知淡水在每个国家都很重要.故选B.
小题1:根据Symi’s way seems very good for small, hot places. It does not make much water at a time. But the factory is easy to build and costs little.
描述,可知这种工厂能将盐水变成淡水.故选A.
小题1:根据The one that gives the most water for the least money. I 及下文Symi’s way seems very good for small, hot places. It does not make much water at a time. But the factory is easy to build and costs little.描述,可知选C.
小题1:根据短文第二段描述,可知在一些炎热的小地方获取淡水的最好方法是冷冻海水,故选D.
小题1:根据Symi’s way seems very good for small, hot places.描述,可知这不适合凉爽的地区,故选C.
核心考点
试题【Many places in the world need more fresh water. Every country is trying to find 】；主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Also, you should remember that it is your duty to do your homework. Next time, when you want to depend on(依靠) Mom and Dad for help, please try to find the answer yourself, because you will learn much, much more that way.
When you have a question, especially something about a science or math, don’t always turn to your teacher! It is a good idea to try to find the answer yourself. If this doesn’t work, you can also look at the materials in the back of the book. They may guide you to the pages you should look at to help you understand the problem.
Finally, while doing homework, don’t think about or do other things. Keep working. Setting a time limit(限制) often helps with this. Different ages decide different amounts of time. 10-15 minutes is good for a child that’s aged 6-8. A time of 20-30 minutes is about right for a child aged 9-12. Kids can keep studying for 30-45 minutes from the ages of 13 to 15. This, of course, depends on your abilities to pay attention and stay on tasks.
小题1:In the first paragraph, the writer mainly tells us that ______.
| A．doing homework is the first thing you should do at home |
| B．after-school activities can’t affect doing homework |
| C．parents can help kids with their homework at night |
| D．kids need a good rest after school |
| A．students should ask the teacher more questions |
| B．thinking over the questions before asking others is important |
| C．problems can’t be solved without a teacher’s help |
| D．students shouldn’t always look at the materials in the back of the book |
| A．not to look away while doing homework |
| B．to do homework by themselves |
| C．not to turn to teachers when doing homework |
| D．to do their homework quickly and in the right way’ |
33 your time carefully. You should make a 34 of things that you have to do. First write down the time for eating, sleeping, dressing, etc. Then decide on a good time for studying. Of course, studying shouldn’t take all of your time. Don’t 35 to leave yourself enough time for hobbies.
Find a good place to study. Look around the house 36 a good study place. Keep this space. It may be a desk or just a corner of your room. N0 37 , radio, or television! When you sit down to work, think only about the 38 !
Make good use of your time 39 . Listen carefully to what the teacher says. Careful listening means 40 work after class. You also need to take notes, because it can make it easier for you to learn well.
These are only some of the ways to help you with your studying. I believe you’ll find more other ways besides these.
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小题1:We may see this in a _______.
| A．newspaper | B．magazine | C．textbook | D．dictionary |
| A．encourage | B．record | C．imagine | D．encouragement |
| A．Three. | B．Four. | C．Five. | D．Six. |
The word "record" in the above sentence has the same meaning as in "_______".
| A．I try to keep a record of everything I spend. |
| B．Medical records are now kept on computers. |
| C．I"ll record the film and we can all watch it later, |
| D．Her letters record almost all the details of her daily life. |
A. Wake-up
When you wake up in the morning, sit up slowly without using your hands. With legs straight out, bend(弯曲) forward until you feel sore（酸痛） in your back. It will bum about 10 calories.
B. Start with soup
When you have a meal, order a clear soup, and have it before having the main food. In this way, you’ll feel fuller, so you’ll eat less when the main food comes.
C. An apple (or more) a day
Apples are full of fiber and water, so your stomach will want less. The study shows that people who eat at least three apples a day lose weight.
D. Stand up and walk around
Every time you use the mobile phone, stand up and walk around. Heavy people sit on average (平均）two and a half hours more each day than thin people. This skill is very important as standing up and walking around will bum 50 0r more calories.
Use these skills, and you will have a big weight loss.
小题1:We should have soup first so that _______.
| A．it can help burn some calories | B．our stomach will want less |
| C．it will provide us with enough water | D．we won’t need any main food |
| A．Sitting up slowly without using your hands helps bum calories. |
| B．Eating apples every day is good for people’s health. |
| C．You have to join a gym if you want to lose weight. |
| D．It’s good to walk around while talking on the mobile phone. |
| A．give advice on how to lose weight | B．tell people to eat apples every day |
| C．tell people how to enjoy a better life | D．tell people to give up bad habits |
| A．Shopping. | B．Teaching. | C．Family. | D．Health. |
1. Think Green. Challenge yourself to think about the environment as you live your life. If you shut off lights when you leave the room, turn off your TV when you’re not watching it, you’ll save energy. If you take shorter showers, you’ll save water.
2. Shop Green. Shopping is fun, but buying things you don’t need is wasteful and bad for the earth. Before you buy something, ask yourself how much you’ll really use it. Keep yourself away from buying products with unnecessary packaging (包装), and whenever possible, buy things that were locally made instead of those shipped from far away.
3. Dress Green. Wear green trousers and T-shirts if you want. But what really matters isn’t the colour, it’s how the clothes were made. If you want to help the environment, the best place to find clothes is at a vintage store, but you might not want to buy everything used. No matter where you shop, keep an eye out for products made from environmentally friendly materials like organic(有机的) cotton, which is grown without the use of pesticides ( ***虫剂).
4. Study Green. What’s better than learning about the environment? Save it while you learn, It can be as simple as using both sides of a piece of paper before you recycle it, or reusing an old textbook :instead of buying a new one. If you want to do more, join an environmental group at your school, and encourage your friends to join, too.
小题1:The underlined phrase "a vintage store" in this passage refers to (是指) a place where you can buy .
| A．cheap clothes | B．fashionable clothes |
| C．second-hand clothes | D．clothes of special size |
| A．Taking shorter showers. |
| B．Buying products with unnecessary packaging. |
| C．Wearing clothes made from organic materials. |
| D．Using both sides of a piece of paw. |
| A．Some Methods to Live Happily. | B．Some Advice to Save Money in Daily Life. |
| C．Some Steps to Live a Healthy Life. | D．Some Ways to Make One’s Life Green. |
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