【题目】 When talking about old capitals, which city comes to your mind?Beijing, Xi’an or Luoyang? Now ,you may add Chengdu, capital city of Sichuan province, to that list.

Chengdu joined nine other old capitals in China on Oct 25, 2016. The list did not come from the government. The capitals are decided by experts at the Association(协会) of Chinese Ancient Capitai Studies. The decisions are usually then widely accepted by the public, reported The Paper website. Before Chengdu, the other nine cities were Beijing, Xi’an, Luoyang,Nanjing, Hngzhou,Kaifeng, Anyang,Zhengzhou and Datong.

Chengdu started to be a capital over 2,000 years ago. It had been the capital of five major regimes(政权),including the famous Shu (AD221-263) during the Three Kingdoms (AD220-280)period.

Chengdu has also done a good job keeping its history. The city has never changed its name in the past 2000 years. It never moved either. “This is not only rare in China, but also across the world,” said Xiao Zhenghong ,the president of the association.

1When was Chengdu added to the list of China’s old capitals?

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2How many old capitals are there in China now?

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3Who is the president of the Association of Chinese Ancient Capital Studies?

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4How long has Chengdu had its name?

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5The list of China’s old capitals didn’t come from the government, did it?

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【题目】 Humans have four basic blood types: A, B , AB and O. Before doing blood transfusions(输血), we have to check a person’s blood type and find out which kind it is. That is the most important step before a blood transfusion. But do you know that just like humans, animals also have blood types?

Dogs have eight basic blood types, though as many an twelve may exist. And a dog can receive any other dog’s blood for a transfusion if it is the first time. After the first time, it becomes important to check the blood type to prevent any risks.

Cats have three basic blood types, named A , B and AB. Of these three types, the A blood type is the most common. Almost 94 percent of the cats in theU.S.A have that blood type. And AB is a rare blood type.

Horse blood types are divided into eight major blood systems, namely A, C, D, K, P, Q, U and T. Cattle have eleven blood types and sheep have seven.

And surprisingly, plants seem to have blood types as well. A Japanese policeman accidently discovered this when he found an extra blood type at a crime scene. Certain proteins in plants are similar to those in human blood. Therefore, plants can also be divided into different groups according to their sap(汁液). But scientists’ understanding of the blood types in plants is still at an early stage.

1How many animals are mentioned in the article?

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2What do we have to do before a blood transfusion?

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3Can a dog receive any other dog’s blood transfusion after the first time?

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4Among all the animal mentioned in the article, what has the greatest number of basic blood types?

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5How many cats in theU.S.A have the A blood type?

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