Do you think that living a hungry life is last century’s story? Well, it may be this century’s headline.The world has growing about a global food shortage. Right now, there are still 870 million hun 题目和参考答案——青夏教育精英家教网—

题目内容

Do you think that living a hungry life is last century’s story? Well, it may be this century’s headline.

The world has growing about a global food shortage. Right now, there are still 870 million hungry people in the world, according to a survey of the UN’s Food and Agriculture Organization. Children can’t this, either. Around fifteen million children die of hungry each year.

What’s causing food shortages? There are several .

There are now more droughts and floods. This is very to farmers and their ability to grow food.

Besides, with the growing , feeding everyone becomes more difficult. There are a little more than seven billion people in the world. By 2050, the world population will be more than nine billion.

Another reason is food waste. The average person throws away 50kg of food every year.

How can we help with food shortages? The easiest way is to on food waste.

Next time before throwing away the food on your plate, just think work has been done to make it. By buying less, we waste less. This takes the pressure off producing so much food. And it helps to solve the problem of food shortage.

You can also ask your schoolmates to join you.

In the early 2016, staff workers from the canteens of Xiamen No.1 High School put up short anti-waste slogans (标语) in dining rooms “Think Before You Waste”. Guess what happened? Students wasted fifteen percent food after that!

Let’s take action! We don’t need a huge activity to make a difference.

1.A. numbers B. thoughts C. worries

2.A. escape B. refuse C. have

3.A. results B. reasons C. clues

4.A. difficult B. harmful C. close

5.A. people B. population C. popularity

6.A. cut down B. cut off C. cut into

7.A. how many B. how much C. how

8.A. less B. fewer C. more

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— Do you think yesterday’s math problem was difficult?

— Yes. I could work it out.

A.hardly B. easily C. finally D. nearly

Could you please ______ me such boring questions? I’m tired.

A. not ask B. not to ask C. not asking D. don’t ask

① Some days, don’t you think, “Wouldn’t it be nice if the laundry would just do itself?” Self-cleaning clothes may sound crazy. But Australian researchers have found a way to make something like this possible!

② A team at RMIT University in Melbourne, Australia, found a way to put special nanostructuresinto clothing, which can then clean the clothes. When sunlight hits the nanostructures, they break down the dirt and stains (污渍) that don’t belong on your clothes.

③ The nanostructures don’t break down the actual clothing because cotton and the other clothing materials are too strong to be broken down. According to CNN, the researchers cover the clothing in a solution made of silver and copper (铜) nanostructures. All it takes is 40 minutes of sunlight and your clothes will look as good as new.

④ So if you spill on yourself during lunch, you can step outside for a walk, and it will be clean by the time you go inside. It not only makes your life easier, but it can also be good for the environment.

⑤ According to the US Department of Energy, the average load of laundry uses about 25 gallons (about 94 liters) of water. Water is a very important resource, so using less of it to wash clothes is better for the environment. But one of the scientists at RMIT University knows more needs to be done.

⑥ “There’s more work to do before we can start throwing out our washing machines,” said Dr Rajesh Ramanathan, “but this is a strong foundation (基础).”

⑦ So what’s the next step? Ramanathan wants to either start selling the solution by itself or convincing clothing makers to treat the clothing with the solution while clothes are being made.

1.According to the first three paragraphs, _____.

A. the nanostructures can break down dirt and stains on clothes

B. people can use the self-cleaning clothes on rainy days

C. the self-cleaning clothes easily wear out

2.The underlined word “solution” in Paragraph 3 means “ ” in Chinese.

A. 方案 B. 溶液 C. 水盆

3.Paragraphs ④ - ⑤ talk about .

A. what advantages the self-cleaning clothes have

B. what helps the self-cleaning clothes work

C. how the self-cleaning clothes work

4.From the passage, we learn that .

A. it’s time to throw out our washing machines