—The U.S. has to have the most deaths from CO...

—The U.S. has 　　　　　　　　　　 to have the most deaths from COVID-19 (新冠肺炎) in the world.

— I’m sorry to hear that.

A.carried out B.found out C.put out D.turned out

九年级英语单选题中等难度题查看答案及解析

China has successfully prevented the Covid-19 from _______ through the country.

A.spread B.to spread C.spreading D.spreads

九年级英语单选题中等难度题查看答案及解析

The growth in skyscrapers (摩天大楼) worldwide, most of which have large glass panes, has led to a great need for window washers. Though the job, which earns workers as much as $35 an hour, can be lucrative, accidents are not uncommon. However, the dangerous chore may soon be done by Ozmo, an intelligent window cleaning robot, with humans supervising (监督) from the safety of the ground.

Much like humans, Ozmo, hanging off the sides of the building, uses its arms and brushes to clean the dirt and grime on the glass panes. A 3-D map of the building programmed into its system allows the robot to skillfully move up and down. Computer vision and touch sensors (传感器) enable it to move out of the way in case of unexpected events, such as the sudden opening of a window. And the robot will self-correct and move around it so as not to break a window.

Unlike other window washers, the robot cleaner does not require soap or Windex to clean the glass. Instead, it uses purified water (纯净水) and a process called reverse osmosis (反渗透) to do the job. It is environmentally friendly.

While it takes three cleaners 480 hours each to clean the windows of a 40-story glass building, the robot will single-handedly complete the task in just 80 hours. However, unlike other robots, Ozmo will not replace human workers, only making their jobs safer. Human workers will control the robot from below.

Whether Ozmo, which is still undergoing testing, docs as good a job as humans remains to be seen. * Past efforts to use a robot to do this dangerous job have not been successful, because the machines do not have the same eye as humans and often miss the soot (烟垢) collected on window corners.

1.The underlined word “lucrative” in the passant’ probably means “________”

A.安全的 B.危险的 C.赚钱的

2.The second paragraph mainly tells us

A.why Ozmo is much more intelligent than human workers

B.how Ozmo works to clean the glass smartly

C.what makes Ozmo an intelligent window cleaning robot

3.What does Ozmo use to clean the glass?

A.Purified water. B.Soap. C.Grime or soot.

4.To finish the task of cleaning the windows of a 40-story glass building, Ozmo spends ________ hours less than a cleaner.

A.560 B.400 C.1,360

5.Which of the following is TRUE about Ozmo?

A.As an intelligent window cleaning robot. Ozmo is successful.

B.Ozmo does harm to the environment while cleaning the window.

C.Ozmo can make human window washers do their jobs safely.

九年级英语阅读单选中等难度题查看答案及解析

Many homes have cameras to protect them from danger. The cameras can tell the owners if someone has entered. But the cameras do not know whether the person is a family member, a friend, a postman or a criminal (罪犯).

But a new camera made by a French company can recognize (辨别出) faces. It can tell parents at work that their children have returned from school, or that the mail has been sent to their home. It can also tell them if a stranger has entered their home. When family members enter a home, the smart camera “recognizes” them and sends information to the owner’s phone. The owner can choose to see the video then or later. But if an unknown person enters a home, the camera will send a warning sound on the owner’s phone.

This is what happened recently to a smart home camera owner named Damien. He lives in Paris.

“On a Friday I was at work, having a big monthly meeting when my phone moved. At first I told myself ‘Oh, it must be a wrong warn,’ but my phone was telling me there was a face that the camera did not recognize. Something was happening in my house!”

“I saw a person I did not know with his shoes on, which is not allowed in my apartment (公寓). I watched it on the video. I felt quite surprised. I hurried back home as fast as possible and called the police on the way. Thanks to the smart camera, the criminal was caught soon,” said Damien.

1.The new smart camera is different from the ones in many homes because it can _________.

A. protect the owner　　　 　　　　　　 B. help a school child

C. recognize faces　 　　　　　　　　　 D. call the police

2. In Damien’s apartment, people can’t _______.

A. wear shoes　　 　 B. watch videos

C. have cameras　　　 D. send mails

3. If we put the passage into three parts, which of the following is the best?

(1=Para. (自然段)1　　 2 = Para. 2　　 3 = Para. 3　　 4 = Para. 4　　 5 = Para. 5)

A. ①;②③;④⑤　 　　　　　　 B. ①;②;③④⑤

C. ①②③;④;⑤ 　　　　　　　 D. ①②;③④;⑤

4. The best title of the passage may be “_______”.

A. Catching Criminals in a Better Way

B. Strange Video Faces

C. Warning Sound on the Phone

D. Smart Home Cameras

九年级英语阅读理解中等难度题查看答案及解析

Many homes have cameras to protect them from danger. The cameras can tell the owners if someone has entered. But the cameras do not know whether the person is a family member, a friend, a postman or a criminal (罪犯).

But a new camera made by a French company can recognize (辨别出) faces. It can tell parents at work that their children have returned from school, or that the mail has been sent to their home. It can also tell them if a stranger has entered their home. When family members enter a home, the smart camera “recognizes” them and sends information to the owner’s phone. The owner can choose to see the video then or later. But if an unknown person enters a home, the camera will send a warning sound on the owner’s phone.

This is what happened recently to a smart home camera owner named Damien. He lives in Paris.

“On a Friday I was at work, having a big monthly meeting when my phone moved. At first I told myself ‘Oh, it must be a wrong warn,’ but my phone was telling me there was a face that the camera did not recognize. Something was happening in my house!”

“I saw a person I did not know with his shoes on, which is not allowed in my apartment (公寓). I watched it on the video. I felt quite surprised. I hurried back home as fast as possible and called the police on the way. Thanks to the smart camera, the criminal was caught soon,” said Damien.

1.The new smart camera is different from the ones in many homes because it can _________.

A. protect the owner B. help a school child

C. recognize faces D. call the police

2.In Damien’s apartment, people can’t _______.

A. wear shoes B. watch videos

C. have cameras D. send mails

3.If we put the passage into three parts, which of the following is the best?

(=Para. (自然段)1　 = Para. 2　 = Para. 3　 = Para. 4　 = Para. 5)

A. ①;②③;④⑤ B. ①;②;③④⑤

C. ①②③;④;⑤ D. ①②;③④;⑤

九年级英语阅读单选中等难度题查看答案及解析

Many homes have cameras to protect them from danger. The cameras can tell the owners if someone has entered. But the cameras do not know whether the person is a family member, a friend, a postman or a criminal (罪犯).

But a new camera made by a French company can recognize (辨别出) faces. It can tell parents at work that their children have returned from school, or that the mail has been sent to their home. It can also tell them if a stranger has entered their home. When family members enter a home, the smart camera “recognizes” them and sends information to the owner’s phone. The owner can choose to see the video then or later. But if an unknown person enters a home, the camera will send a warning sound on the owner’s phone.

This is what happened recently to a smart home camera owner named Damien. He lives in Paris.

“On a Friday I was at work, having a big monthly meeting when my phone moved. At first I told myself ‘Oh, it must be a wrong warn,’ but my phone was telling me there was a face that the camera did not recognize. Something was happening in my house!”

“I saw a person I did not know with his shoes on, which is not allowed in my apartment (公寓). I watched it on the video. I felt quite surprised. I hurried back home as fast as possible and called the police on the way. Thanks to the smart camera, the criminal was caught soon,” said Damien.

1.The new smart camera is different from the ones in many homes because it can _________.

A.protect the owner B.help a school child

C.recognize faces D.call the police

2.In Damien’s apartment, people can’t _______.

A.wear shoes B.watch videos

C.have cameras D.send mails

3.If we put the passage into three parts, which of the following is the best?

(1="Para." (自然段)1　　 2 =" Para." 2　　 3 =" Para." 3　　 4 =" Para." 4　　 5 =" Para." 5)

A.①;②③;④⑤ B.①;②;③④⑤

C.①②③;④;⑤ D.①②;③④;⑤

4.The best title of the passage may be “_______”.

A.Catching Criminals in a Better Way

B.Strange Video Faces

C.Warning Sound on the Phone

D.Smart Home Cameras

九年级英语阅读单选中等难度题查看答案及解析

In order to prevent the spread of COVID-19. the Ministry of Education has decided to put off the start of the spring term for schools. To make sure that students could keep studying, most schools began to offer online courses for them at home. However, you may met all kinds of difficulties while taking online classes for the first time. I hope you can get some ideas from the following examples of four students who tried to improve their online studies.

1.________ almost drove Zhao Yuchen crazy while studying online.

A.The low voice of his English teacher

B.The poor quality of his Internet connection

C.Too much noise from his family members

D.Planning the course timetable reasonably

2.According to Lin Xiyu, ________ is the key to effective online learning.

A.regular reviewing B.careful note-taking

C.proper time planning D.high quality of Internet connection

3.Zhang Penghui's mother is not allowed to enter his room because he wanted to ________.

A.play games secretly

B.focus on his lessons

C.enjoy his favourite snacks and drinks alone

D.ask her mother to cook for him

4.According to the passage, we can learn that Wang Ruixue ________.

A.thinks it's necessary to have s short break

B.spends too much time on online games

C.doesn't know how to control her time on breaks

D.thinks the Internet is useless for the countryside students

5.The passage is written mainly to ________.

A.explain how important online studying is

B.complain the problems of online studying

C.encourage to improve our English

D.show us how to improve our online studying

九年级英语阅读单选困难题查看答案及解析

首字母填空

The worst traveler in the world was Paul of San Francisco. Once he(1) f____ from the U.S. to his hometown in Italy to see someone at home. The plane made a one hour stop to get oil at an airport in New York. Paul thought he was in Rome. (2)C____, he got off the plane.

When nobody was there to meet him, Paul thought maybe the heavy(3) t___ made his friends late. While looking for their address, Paul found many high (4)m___ buildings instead of old ones. He also found that many people spoke English but not Italian and that many street signs were (5)w_____ in English.

Paul knew very (6)l_____ English. So he asked a policeman in Italian the way to the bus station, He happened to meet a policeman who was also born in Italy and answered in the same (7)l____.

After twelve hours ‘ travelling round on a bus, the driver handed him over to (8)a_____ policeman. But this time, this policeman could only speak English. So Paul asked the policeman why the Rome police employed(雇佣) so many people who spoke English as policemen.

Paul didn’t (9)b____ he was in New York when he was told so. To get him on a plane to Italy, he was(10) s______ to the airport in a police car.

九年级英语单词拼写中等难度题查看答案及解析

Life is short, so you have to make the most of it. Has anybody ever told you that? Maybe they just said ‘‘YOLO” to you instead. It __ “You Only Live Once”, and is a very popular saying on social media.

Having a YOLO attitude means that you make the ___of every day. It means you life,___ you only get one. Someone who has a YOLO attitude is always open to doing new and fun activities.

Now, thanks to a US study, YOLO might be more than just a popular ____ The study found it might be __ to have a YOLO attitude!

A research team did an experiment with two groups of students __ different US universities. One group pretended (假装) they only had 30 days left before moving to a new city. They did lots of activities and __ time with people they loved. In other words, they had a YOLO lifestyle. Another group continued to live __ normal lives.

At the end of the experiment the students did a survey to __ how happy they were. It showed that the first group was much happier.

“The study shows that being and making close friendships are important to __ life,” the research group told The Washington Post. However, they also called on others to do experiments with different groups of people and. see if their results were similar.

1.A. stands for B. waits for C. thinks of D. points at

2.A. worst B. most C. least D. farthest

3.A. when B. if C. because D. until

4.A. saying B. book C. idea D. poem

5.A. happier B. weaker C. stronger D. faster

6.A. to B. from C. about D. with

7.A. cost B. paid C. took D. spent

8.A. our B. his C. your D. their

9.A. put out B. find out C. take out D. give out

10.A. losing B. saving C. enjoying D. killing

九年级英语完型填空中等难度题查看答案及解析

The 2020 Summer Olympics in Tokyo has been put off because of the COVID-19. To welcome the great event, Japan has made 5, 000 medals for the winners. But these Olympic medals are very special. They are all made out of recycled electronic devices(电子设备).

One goal of the Tokyo Olympics is to avoid using too many natural resources, so that the games are environmentally friendly. As part of this goal, the organizers decided to make all of the Olympic medals out of metals recycled from old electronic devices.

You might not know it, but almost all the electronic devices are made with small quantities of precious metals (贵金属), like gold and silver. But collecting enough of these metals to make 5, 000 medals was a huge challenge. That's because the quantity of metals in each device is tiny. It would take about 20,000 cell phones to get just 1 kilogram of gold.

Beginning in April 2017, organizers placed collection boxes around the country, and asked people to turn in their old electronic devices for the Olympic medals. Soon people began to fill up the boxes, turning in smartphones, digital cameras, and laptops. At first, the collection work went slowly, but soon more and more areas began to turn in electronic devices, And 1,621 local governments also helped with the collection work. The Japanese mobile phone company NTT Docomo collected 6.21 million used cell phones. In all, around 71,667, 600 kilograms of electronic devices were collected.

Then came the job of breaking those phones down into smaller pieces. This is a tricky(棘手) job. It is also likely to cause danger, because some of the metals and other things that go into electronic devices aren’t safe for people to touch or breathe. That's why it's not a good idea to try something like this at home. Once the devices were broken down, the metals had to be carefully separated out.

On July 24, 2019, the design for the awards was announced. And by the end of March this year, the organizers had reached their goal.

1.Why does the author say the Tokyo Olympic medals are special?

A.They can be recycled into other products. B.They are small in size and large in number.

C.They are made out of old electronic devices. D.They are green and seem environmentally friendly.

2.What is the main purpose of Paragraph 4?

A.To show the difficulty of the collection work.

B.To thank those who helped with the collection work.

C.To stress the importance of many people working together.

D.To give information on how the collection work was done.

3.What does the author think of the break-down work?

A.Dirty and tiring. B.Hard and dangerous.

C.Boring but rewarding. D.Interesting but challenging.

九年级英语阅读单选困难题查看答案及解析