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Today, the world’s diversity(多样性) of foo...

    Today, the world’s diversity(多样性) of food crops is quickly decreasing. But scientists around the world are taking action. They are building seed banks. At seed banks, scientists store the seeds of many different crops.

There are now 1,400 seed banks around the world. However, some banks are in warm countries. If the electricity fails, the seeds will get too hot and die. Other seed banks are in countries troubled by war. Sometimes people damage the seed banks. If this happens, valuable seeds can be lost forever!

The organization Global Crop Diversity Trust decided they wanted to deal with this problem. So, they decided to build a global seed bank. This seed bank would contain a back-up, or extra copy, of all the world’s seeds. Smaller seed banks would still collect and keep local seeds. But they would also send copies of their seeds to the global bank.

Scientists from the Global Crop Diversity Trust chose the cold, snowy mountains of Svalbard, Norway to build the global seed bank — the Svalbard Global Seed Vault. Organizations, farmers, or local seed banks store their extra seeds there. And the people who place their seeds in the vault are the only people who can take them out. They pay to ship their seeds to Norway, but it does not cost them any money to store their seeds. The Global Crop Diversity Trust pays for this.

Cary Fowler is a scientist who heads the Global Crop Diversity Trust. He said, “If the Seed Vault simply supplies seed banks with copies of seeds that those banks lost by accident, the Seed Vault will be worth way more than it cost.”

1.Seed banks are built to ________.

A.research on seeds B.produce new seeds

C.protect crop diversity D.increase the number of seeds

2.What is the author's purpose in Paragraph 2?

A.Scientists store the seeds of many different crops at seed banks.

B.If seed banks are destroyed, valuable seeds will be lost forever.

C.Scientists want to build a global seed bank.

D.The people who place their seeds in the vault are the only people who can take them out.

3.Compared with other seed banks, the global seed bank ________.

A.was built by the government B.is more welcomed by farmers

C.is mainly used by great scientists D.can provide a good environment for seeds

4.What can we learn about the Svalbard Global Seed Vault?

A.It helps to pay the shipping cost. B.No one can take seeds out of there.

C.There are no fees to store seeds there. D.It mainly receives seeds from farmers.

5.What is Cary Fowler’s attitude towards the Seed Vault?

A.He feels it is very important. B.He is surprised at it.

C.He thinks it costs too much. D.He is uncertain about it.

 

1.C 2.B 3.D 4.C 5.A 【解析】 文章大意:本文主要讲为了保护作物多样性,世界上建立了一千四百家种子银行,但这些银行都没有很好的保障性,因此全球农作物多样性信托组织决定建立一个全球种子银行来解决这个问题。文中具体介绍了这个全球性银行的运作及其优势。 1. 2. 3. 4. 5.
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    The traditional Chinese lunar calendar divides the year into 24 solar terms. Grain Rain(谷雨)as the last term in spring, starts on April 19 and ends on May 4.

Grain Rain comes from the old saying, “Rain brings the growth of hundreds of grains”, which shows that this period of rainfall is very important for the growth of crops. Here’s something that you may not know about the Grain Rain.

1. Grain Rain falls between the end of spring and the beginning of summer, and the temperature rises much higher than it does in March. With dry soil and heavy winds, sandstorms may happen more often.

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3. People in northern China have the tradition to eat the vegetable toona sinensis during Grain Rain. An old Chinese saying goes “toona sinensis before the rain is as tender as silk”. The vegetable is good for the stomach and skin.

4. The Grain Rain Festival is celebrated by fishing villages in northern China. Grain Rain marks the start of the fishermen's first voyage of the year. The custom dates back to more than 2,000 years ago.

 

1.When Grain Rain ends, ________ starts.

A.summer B.spring C.fall D.winter

2.The underlined word “crops” refers to ________.

A.flowers in the garden B.trees in the forest

C.fishes in the sea D.plants in the field

3.The people in southern China ________ on the day of Grain Rain.

A.eat toona sinensis B.fly a kite C.drink tea D.start the first voyage

4.We can infer that “toona sinensis” must be a kind of vegetable which ________.

A.can bring good luck B.is delicious and healthy

C.grows at the seaside D.is a type of medicine

5.The right order of the titles from 1 to 4 should be________.

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A.b-d-c-a B.b-a-d-c C.b-c-a-d D.b-d-a-c

 

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    “We're going to cut science class today. I know you want to come with us. Let’s go!”

Maybe you’ve ______one of the popular kids at school say something like this. So what do you do? Do you just give in and do what the other kids ______, or do you go to class no matter what they say?

Situations like this often come up. And it is not easy to make your own______ when your friends want to do something you’re not quite sure about. Sometimes, you feel you should do something because everyone else is doing it, and it is______to go against the majority. This is called “peer(同龄人) pressure” because peers are pressuring you to do what they want.

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10.A.alone B.lucky C.quiet D.popular

 

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    一场疫情悄然改变着我们的生活习惯。假定你是李华,你的英国笔友Mike想了解你们目前的用餐情况及你的看法,请你写一封电子邮件回复他。

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How’s everything going? I’d like to tell you our lives have changed a lot because of the COVID-19. For dining habits,______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Look forward to hearing from you!

Yours,

Li Hua

 

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