The human body is a living machine, and, like all machines, it needs &ldquo;fuel&rdquo; to supply it with energy. This...

题型：阅读选择题类：常考题难易度：普通

   The human body is a living machine, and, like all machines, it needs “fuel” to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy?
   The energy value of food is usually measured in calories(卡). A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃. The number of calories people need per day is different, as the picture shows. Also, the number of calories you use at any one moment normally depends on the activity you are in. For example, you need more calories for standing than for sitting, more for running than for walking, and so on.
   The energy in food is in the form of three kinds of chemical materials—carbohydrate（碳水化合物）, protein（蛋白质） and fat. Carbohydrate provides 3.8 Cal /gm of the energy, protein 4.0 Cal/gm, and fat 8.8 Cal/gm. Each food contains different amounts of these materials, as the round pictures show.
(P= protein      C= carbohydrate    F=fat)

（1）、How many calories are needed to raise the temperature of 5kg of water from 35℃ to 90℃?

A、55. B、175. C、325. D、275.

（2）、Which of the following contains the most amount of calories?

A、Milk. B、Rice C、Peanuts. D、Milk or peanuts.

（3）、Who needs the most amount of calories each day?

A、A woman. B、An office worker. C、A farmer. D、A boy aged 16.

（4）、Which of following is True?　　

A、You need more calories for swimming than for mountain climbing. B、child aged 8 needs the same amount of calories every day as a man over 70 does. C、A woman feeding baby needs over 4 times the amount of calories that a baby does. D、Everyone needs the same amount of calories per day.

（5）、This passage mainly tells us ______.

A、all the energy is in food B、the human body needs energy C、the number of calories depends on your activity D、we must only eat peanuts to get calories

举一反三

Can animals do work for us? Some scientists think that animals may do a lot of jobs. They say that we may see many elephants, monkeys, dogs, bears and other animals do a lot of things. Animals can get something to eat if(如果) they do some work for people.
Some scientists say that many different animals may do lots of jobs if they know they will get something to eat. Of course, dogs can guard a house, and elephants can do some heavy jobs. And we can also teach animals to work in factories. In America apes(猿) can help people make cars. Scientists believe that these big monkeys may drive cars.

阅读下列材料，从每题所给的A、B、C、D四个选项中选出最佳选项。

Teenagers are known for being creative and full of new ideas. Let's have a look at these teenage inventions that might change the world.

Banana leaves usually go bad in two or three days. Tenith Adithyaa, a teenager from India, used UV to make the leaves stay fresh for a year. Tenith thinks that one day the leaves will be used for making plates, cups and other things.

David Cohen, an American teenager, built an earthworm(蚯蚓) robot. It is able to go into the smallest places, where humans or dogs can't go. It will be used for finding people in a fire or an earthquake.

Remya Jose, a 14-year-old from India, found it tiring and boring to handwash clothes in the nearby river. She reused some bicycle parts and created a washing machine that saves time, energy and keeps people fit at the same time.

Kenneth Shinozuku, a 15-year-old from New York, noticed that his grandfather who got Alzheimer's disease（老年痴呆） would often leave home and get lost. So he invented the wearable sensors(感应器)to help people find their family members like his grandfather.

阅读材料，然后从各题所给的四个选项中选出一个最佳答案。

Fresh green grass, Hundreds of colorful wild flowers. Water running into little pools. Birds making their homes in boxes. The 9, 500-square-metre Augustenborg Botanical Garden may look just like any other well-organized park but there's a difference. It lies on the roofs (屋顶) of industrial and office buildings in the city of Malmo in Sweden.

Green roofs are not a new invention. And now they are getting popular again. The common roofs of a modern city have endless black surfaces with no life or water. Perhaps that's why a garden on a roof becomes such a perfect choice for more and more people.

Green roofs are not just pretty. They also help to moderate the city temperature. The high temperatures on common roofs in the summer can make top floor flats uncomfortably hot. What is more, they play a part in making the cities hotter than the countryside around them, causing the "urban heat-island effect". On a green roof, however, with its plants and water, temperatures change only a little, as they do in a park. This can greatly cut the costs of heating and cooling in the building below.

Also, a green roof takes in rain water, and protects the city drainage (排水) system. ▲ And small animals and birds can make their homes on it. Thanks to this, the city may become part of nature, rather than something completely separate from it.

While the cost of building such a roof can still be higher, it can be cheaper in the long term as a result of energy savings. And wouldn't it be wonderful to be able to walk out into a garden high above the city's noise and traffic, whether you're at school or in an office or just at home in a ten-floor block?

阅读理解

Hello! My name is Sara and I'm thirteen years old. I'm from France. My best friend is Mary. She is from Germany and one year older than me. She came to France with her family five years ago. At the be- ginning (开始) she couldn't speak French well but now it's different. She's very hard-working at school and she's fluent in French now,

Mary is tall and beautiful. She has long curly brown hair and brown eyes. We are in the same school and she lives not far from my home. We often go home together. After school we also spend some time together. Because I'm better at math and science and she is better at history and geography, we can always help each other with our homework. She also likes reading very much. Last year she won a special prize (奖) for the best reader in our class.

My friend is not very sporty. She doesn't like team games(团队运动)but she likes swimming. I like sports and we go swimming together every Saturday morning. She's a little shy with new people but with me she's friendly! I like her and she always brings out the best in me. I really hope we can be best friends for life!

假如你是Jenny Green, 你班英语口语课讲围绕"自我介绍"轮流发言。请根据以下提示，用英语写一篇短文介绍自己，为口语课的发言做准备。

Age	13
School	Sunshine Middle School
Telephone number	352-6472
Family members	父母和哥哥
Room	整洁，书和笔记本在书柜里，有一个足球在椅子下

注意：（1）短文必须包括表中所有内容，可适当增加细节；（2）词数：60词左右; 开头和结尾已给出，不计入总词数。（3）短文不得出现真实校名及人名。

提示词： soccer (足球）

Hello, I'm Jenny Green.

Thank you for your listening. Have a nice day!

阅读下面短文，根据括号内所给汉语注释写出单词的正确形式(每空一词)

When it comes to the {#blank#}1{#/blank#} (发展) of drones(无人机), the first thing that comes to many people's minds might be DJI. Every year, {#blank#}2{#/blank#} (千) of drones are produced by DJI. These drones are widely used in people's {#blank#}3{#/blank#}(日常) life.

At first, a group of young people made a {#blank#}4{#/blank#} (决定) to focus on a new market - - drones. Although facing challenges, they tried to deal with them. With the introduction of the first drone, DJI began to {#blank#}5{#/blank#} (影响) the whole industry(产业). Very soon, traditional ways of aerial(空中的) photography were {#blank#}6{#/blank#} (取代) by DJI's drones. So far, DJI's products have {#blank#}7{#/blank#} (传播) around the world. More and more people {#blank#}8{#/blank#} (推测)DJI will keep its leading position.

The story of DJI shows the importance of catching chances {#blank#}9{#/blank#}(明智). At the same time, it stands for China's growing ability of self-innovation(自主创新). All in all, Chinese people will continue to take {#blank#}10{#/blank#}(骄傲) in DJI.

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