《2025年5年中考3年模拟英语人教版河南专版》

三、句子盲填。
1. The polluted river ______ been brought under control by the local government.
2. He is writing ______ the local government against building a chemical factory by the lake.
3. I am thankful ______ my teacher for helping me learn English.
4. But along ______ difficulties, there will also be many exciting things waiting for you.
5. First ______ all, I'd like to congratulate all the students who are here today.

答案： has
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Have you ever seen pandas that aren't black-and-white? Scientists have found that there are brown-and-white pandas living in a mountain range in China.
Scientists have studied the genes(基因) of different pandas in the wild and they have found that pandas with brown-and-white coats are the result of changes in the natural environment. To understand what lies behind the special color, the scientists studied Qizai, a brown panda in Shaanxi. He is now the world's only captive(被圈养的) brown panda.
When compared with hair from three black-and-white pandas, Qizai's brownish coat had fewer and smaller melanosomes(黑素体). What's more, the melanosomes were more likely to be differently shaped, the study team found. The scientists then collected genetic information about Qizai and pieced together his family tree.
The scientists studied the genetic information from Qizai's family members and compared it with the genetic information from 12 black-and-white pandas from the Qinling Mountains and 17 black-and-white pandas from other places in China.
While none of Qizai's family members had brown coats, the scientists were able to show that his parents and son all had one copy of the recessive trait(隐性特征) on a certain gene, while Qizai had two copies. The scientists then studied another 192 black-and-white pandas. The gene change causing the brown coats was only found in two pandas from the Qinling Mountains in Shaanxi, not Sichuan province, where most China's pandas live.
It's not clear what caused the genetic change. Scientists said it might be because of the environment of the Qinling Mountains, which is different from that of Sichuan. “For those who care about pandas, this is a great development,” said Wang Tiejun, who worked in the mountains for 10 years. Wang said he was glad to see the scientists' efforts in trying to work out this scientific question.
1. What is the fact of Qizai?
A. He lives in Sichuan province.
B. He is a black-and-white panda.
C. He has a family of twelve members.
D. He has two copies of the recessive trait.
2. What can be found in Paragraph 5?
A. The results of the study.
B. The methods of the study.
C. The difficulties of the study.
D. The advantages of the study.
3. What does the study focus on?
A. Pandas' family trees.
B. Pandas' genetic information.
C. Pandas' common coats.
D. Pandas' living environment.
4. What is Wang's attitude(态度) towards the study?
A. Hopeful.
B. Supportive.
C. Doubtful.
D. Uncertain.
5. Why is the text written?
A. To give advice.
B. To present a problem.
C. To offer knowledge.
D. To share an experience.

答案： 1—5 DABBC