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There has been a lot of rain in California recently. Villagers and leaders there begin to be worried because they have found two birds died from a disease, West Nile Virus(病毒).

West Nile Virus is carried by mosquitoes(蚊子).The symptoms(症状) are just like the flu. However, it can cause dangerous brain problems. When it rains a lot, it will leave a lot of water in ponds and trees. These places are good for mosquitoes. Mosquitoes lay their eggs in the water. Warm weather will help the mosquito eggs to develop and then the number is increasing. Birds eat the mosquitoes and get sick. People can get the disease if they are bitten(叮咬) by mosquitoes with West Nile Virus.

The government is trying its best go stop the spread of West Nile Virus. People are asked to wear long sleeves(长袖)and pants, close their windows and shut the doors. At the same time, workers have been sent out to check the wet areas. If they find mosquitoes they will use some special medicine to kill them.

1.Why did the two birds die?

A. They died from West Nile Virus.

B. They could not get enough food.

C. The villagers killed them.

2.From the passage we know West Nile Virus is carried by ______.

A. flu                    B. mosquitoes                  C. water

3.People will get the disease if ______.

A. they get wet in rainy days

B. they are bitten by any mosquito

C. they are bitten by mosquitoes with West Nile Virus

4.People are asked to wear long sleeves and pants in order to ­­______.

A. keep warm

B. check the wet areas

C. avoid being bitten by mosquitoes

九年级英语阅读理解困难题查看答案及解析

There has been a lot of rain in California recently. Villagers and leaders there begin to be worried because they have found two birds died from a disease, West Nile Virus(病毒).

West Nile Virus is carried by mosquitoes(蚊子).The symptoms(症状) are just like the flu. However, it can cause dangerous brain problems. When it rains a lot, it will leave a lot of water in ponds and trees. These places are good for mosquitoes. Mosquitoes lay their eggs in the water. Warm weather will help the mosquito eggs to develop and then the number is increasing. Birds eat the mosquitoes and get sick. People can get the disease if they are bitten(叮咬) by mosquitoes with West Nile Virus.

The government is trying its best go stop the spread of West Nile Virus. People are asked to wear long sleeves(长袖)and pants, close their windows and shut the doors. At the same time, workers have been sent out to check the wet areas. If they find mosquitoes they will use some special medicine to kill them.

1.Why did the two birds die?

A. They died from West Nile Virus.

B. They could not get enough food.

C. The villagers killed them.

2.From the passage we know West Nile Virus is carried by ______.

A. flu                    B. mosquitoes                  C. water

3.People will get the disease if ______.

A. they get wet in rainy days

B. they are bitten by any mosquito

C. they are bitten by mosquitoes with West Nile Virus

4. People are asked to wear long sleeves and pants in order to ­­______.

A. keep warm

B. check the wet areas

C. avoid being bitten by mosquitoes

九年级英语阅读理解中等难度题查看答案及解析

In recent years，people ________ a lot of trees.

A. cut down　　 B. has cut down　　 C. have been cutting down　　 D. are cutting down

九年级英语单选题中等难度题查看答案及解析

A makeshift hospital（临时医院）has been set up by members of the California National Guard in California, in the US.

Feng Bangli, from Wuhan, Hubei, began to have a fever at the end of January and suspected that he had been infected（感染）with the virus. He tried several times to be allowed to enter a hospital but failed. He gave up and stayed at home, taking drugs prescribed （开药方）by doctors.

At that time, “too many patients were waiting to see doctors at every hospital, and it was not possible for me to get a bed,” said Feng. Days later, with the community staff’s help, Feng tested positive for COVID-19 and was sent to a makeshift hospital for treatment.

“Without such makeshift hospitals, many COVID-19 patients like me may never have found a bed,” said Feng, who recovered（恢复）and was discharged（获准离开） from the makeshift hospital in Wuchang district at the end of February after staying there for 12 days.

Like Feng, more than 12,000 COVID-19 patients in Wuhan received treatment and care at 15 makeshift hospitals, which were converted（改造）from exhibition halls and sports stadiums. These hospitals, which mainly received patients with mild symptoms（轻症）, contained one in every four confirmed COVID-19 patients in the city, said Ma Xiaowei, minister of China’s National Health Commission.

“Building makeshift hospitals was a key decision made in the critical（关键的）moment when Wuhan was facing a formidable task of epidemic（疫情）control, and it has played an important role in both prevention and treatment of the disease,” he said.

Makeshift hospitals have greatly reduced pressure（压力）on designated （指定的）hospitals to receive and treat patients, which made it possible to treat and isolate（隔离）all people in need, said Xu Junmei, vice-president of Wuchang makeshift hospital. “They were the life vessels（生命之舟）during the peak of the epidemic.”

1.What point does the writer make by using Feng Bangli’s example?

A.COVID-19 has infected a large number of people in a very short time.

B.Hospitals should always be prepared for any unexpected situations.

C.The COVID-19 outbreak happened suddenly without the slightest warning.

D.Makeshift hospitals have played an important role in the fight against COVID-19.

2.What does the underlined word “formidable” in Paragraph 6 probably mean?

A.new B.basic C.difficult D.strange

3.Why did Wuhan build makeshift hospitals during the outbreak of COVID-19, the followings are the reasons for it except _________.

A.it has greatly reduced pressure on designated hospitals to receive and treat patients.

B.it was needed for receiving and treating patients.

C.Wuhan has a poor medical system.

D.the designated (指定的) hospitals aren’t enough

4.What did Xu Junmei think of makeshift hospitals?

A.They wasted resources.

B.They were greatly helpful and saved a lot of people.

C.They were not practical.

D.They would not be used any more.

5.What is the main purpose of the article?

A.To praise China’s quick response to the COVID-19 outbreak.

B.To make other countries copy China’s method of fighting the virus.

C.To show the value of building makeshift hospitals to fight COVID-19.

D.To compare the measures different countries have taken to deal with COVID-19.

九年级英语阅读单选中等难度题查看答案及解析

Artificial Intelligence (AI) has been in the news a lot lately. And according to a recent report from the McKinsey Global Institute, about half of today’s work activities could be automated(自动化的) by 2055. Could “teaching” be on that list?

The teacher in the classroom is a human model. When a human teacher is able to show the advantages of learning, learners are more likely to be inspired to work harder and make progress. Even AI with advance technology can’t do this.

So, the chances are that your job is safe for the near future. But it is going to change, and robots will join us quite soon, as teaching assistants.

Recently, a Georgia Tech professor has used an AI teaching assistant in his classroom, which allows him to more effectively manage over 400 students. His AI teaching assistant helps him answer more routine questions, freeing him to deal with some complex problems which are difficult to solve from students.

AI is also being used in South Korea and Japan to help with language learning. Students can go through any variety of conversational practices, and AI can correct mistakes in usage and pronunciation. In fact, research shows that these programs can help solve problems like shyness and frustration(挫败) that can appear when children practice repetitively with a teacher. After all, a robot will not get tired or annoyed no matter how many mistakes a child makes.

This will be the future of AI in the classroom. Should you start packing up your desk? Absolutely not. The bottom line is that these technologies work best when paired with an active human teacher. But it certainly could make your job easier and more efficient.

1.What is the second paragraph mainly about?

A.The present teaching conditions.

B.The advantage of human teachers.

C.The purpose of using an AI teaching technology.

2.What does underlined word “complex” means in Chinese?

A.复杂的 B.普遍的 C.完整的

3.In what way is a robot better than a human teacher?

A.It is more patient. B.It is more creative. C.It is more convenient.

4.Who is the passage probably written for?

A.Students. B.Teachers. C.Parents.

5.Which can be the best title for the passage?

A.What will teachers be like in the future?

B.The benefit of using teaching assistants.

C.Could AI take the place of human teachers?

九年级英语阅读单选困难题查看答案及解析

An “egg-laying” cliff （产蛋岩）in Southwest China has attracted（吸引）a lot of interest online recently.

The cliff, in Sandu County, Guizhou Province, has many egg-shaped rocks sitting on it. Most rocks are the size of a football, while smaller ones are still half inside the cliff, with only parts of them standing out.

According to the local government, the cliff is in a place of interest that has been open to public since 2010. It is about 100 meters long and five meters high. Local people said that some “eggs” fall off the cliff every 30 years, “like a hen laying eggs.”

At the bottom of the cliff lie many rocks that fell down in the past. Most of them are round or egg-shaped with a diameter（直径）of up to 50 centimeters. The green rocks are hard.

“In the past, people thought the rocks were symbols of good luck and took them home,” said the local people. The largest rock weighs about 300 kg, with a diameter of 60 centimeters. It’s called “the king of eggs.”

It’s said that Guizhou was once a large ocean, and that the rock eggs could have been produced by animals from the ocean. But nobody is sure about how they are formed.

1.The “egg-laying” cliff is famous because ______.

A. the rock eggs are very beautiful　　 B. it is now in the sea

C. it can lay “eggs” every 30 years　　 D. it is colorful and hard

2.The cliff has been open to public as a place of interest for about ______.

A. 5 years　　 B. 8 years　　 C. 30 years　　 D. 50 years

3.Which is right about the “eggs”?

A. The “eggs” are black and hard.　　 B. All the “eggs” are almost the same size.

C. Most “eggs” weigh over 300kg.　　 D. Many “eggs” are at the foot of the cliff.

4.What can we know from the passage?

A. The cliff is as big as a football field.　　 B. The “eggs” were “bad luck eggs”.

C. The cliff lays many eggs every year.　　 D. The cliff was in the ocean in ancient times.

九年级英语阅读单选困难题查看答案及解析

—The new president has become one of________recently.

—Yes, lots of people are________in him.

A. the hotter topics; interested　　 B. the hottest topics; interested

C. the hotter topics; interesting　　 D. the hottest topics; interesting

九年级英语单选题中等难度题查看答案及解析

The 18th National Congress of the CPC has been one of______things in our life recently.

A. important　　 B. more important　　 C. most important　　　 D. the most important

九年级英语单项填空中等难度题查看答案及解析

—Will you take part in the football game on Sunday afternoon?

—No.It has been 　　　　　　　　　　　　 because of the rain.

A. refused　　 B. controlled　　 C. canceled　　 D. served

九年级英语单选题中等难度题查看答案及解析

In spring, a lot of young trees _______ in our city.

A. are planted

B. plant

C. has been planted

九年级英语单项填空中等难度题查看答案及解析