It's reported that a Chinese company has created a new facial recognition system that can identify (识别) people even if they are wearing masks. Developers began working on the new system in January 2020 when the novel coronavirus appeared in China. The fast spread of the virus has led most people to wear masks in public to protect themselves and people around.
China is regarded as a world leader in the development of artificial intelligence (AI). According to engineers at the Beijing——based Hanwang Technology Ltd, this system is the first to be created to identify people wearing face masks. A team of 20 engineers completed it in about a month, adding a collection of about 6 million unmasked faces and a smaller collection of masked faces," the company said.
Hanwang is now selling two main kinds of products using the new technology. One performs single channel recognition (单通道识别), which will be used at the entrances to buildings. The other product is a multi—channel (多通道识别) recognition system that uses groups of cameras. It's said thatthe multi—channel system can identify a person in a crowd of up to 30 people within a second.
When people wear a mask, the recognition rate can reach about 95 percent," said Huang Lei, Hanwang's vice president. The system's success rate for people without wearing a mask is about 99. 5 percent."
Nowadays the new system is trying to identify people with both sunglasses and a mask. In such cases, all of the key facial information is lost, making recognition hard," Huang said.
1.What does Paragraph 1 mainly want to tell us?
A.The truth that people should wear masks in public.
B.The reason why a new facial recognition system was created.
C.The time when the novel coronavirus appeared in China.
2.How is the facial recognition system able to recognize masked faces?
A.After many unmasked and masked faces are stored in it.
B.After just a large collection of masked faces are added to it.
C.After 20 engineers work hard for a month.
3.What do we know about the multi—channel recognition system?
A.It can identify people with sunglasses and masks.
B.It can be found at the entrances to buildings.
C.Many cameras are used at the same time.
4.Which part of the head does the system mainly pay attention to when a person wears a mask?
A.The hair. B.The ears. C.The eyes.
5.The writer wrote the passage to________.
A.show the rapid development of China
B.explain the popularity of AI
C.introduce a new recognition system
九年级英语阅读单选困难题
It’s reported that a company called MicroCHIPS has developed a wirelessly controlled device(装置). The device is put under the skin and can supply a drug directly into the patient’s body. People give the name “microchips” to it.
Microchips bring good news to patients with long-term( 长期的) illnesses, for example, Osteoporosis( 骨质疏松症). People with Osteoporosis have to get daily injections( 注射) of medicine. One type of treatment requires injections for two years. Many patients stop taking the medicine because of the pain and stress of the infections. However, microchips can deal with it. Doctors will program the device before putting it under the skin, and the device has the ability to release(释放) a dose (剂量) at a given time, every single day. One microchip can hold a full year’s worth of medicine.
Microchips may one day free (使…… 摆脱)people from having to remember to take their medicine, or get injections. The device may also be useful in treating other long-term diseases, including heart disease, cancer and even AIDS.
1.What is the passage mainly about?
| A．It introduces the company MicroCHIPS. |
| B．It introduces a new wirelessly controlled device called “ microchips”. |
| C．It introduces some common long-tern diseases. |
| D．It’s about how the device called“microchips”works. |
2.According to the passage, why do many patients stop getting injections?
| A．Because of the pain and stress of the injections. |
| B．Because they are too lazy. |
| C．Because they like taking pills(药丸). |
| D．Because they are waiting for the new device. |
3.According to how the device works, which of the following is the correct order?
① Put the device under the skin.
② The device releases a dose at a given time.
③ Doctors program it.
| A．①②③ | B．②③① | C．③①② | D．③②① |
九年级英语阅读理解中等难度题查看答案及解析
— Chinese company Xiaomi is working on creating smart houses.
— That's cool. The light in the house can ________ people and turn itself on.
A.guide B.warn C.sense
九年级英语单选题中等难度题查看答案及解析
It’s reported that another big oil field was in Shandong.（ ）
A.invented B.discovered C.created D.founded
九年级英语单选题中等难度题查看答案及解析
A)根据对话内容,从方框七个选项中选出五项能填入空白处的最佳选项。
A. Yes. It's reported that some companies plan to sell the flying cars.
B. So the driver can park it like a car.
C. How fast it is!
D. Have you heard of flying cars?
E. But anyway, it's worth the price.
F. Actually, it is not a new idea.
G. Can they fly high?
Becky:1.
David: What? Flying cars? That’s impossible!
Becky: 2.Many companies (公司) have been trying to make safer ones.
David: Really?
Becky: 3.
David: Sounds great! What's it like?
Becky: It is nearly 6 meters long and seats two people. It has wings that can fold. 4. And it can change into an airplane in just seconds.
David: Is it very expensive?
Becky: Yes, around one million yuan.
Linda: Wow! 5.
九年级英语补全对话7选5中等难度题查看答案及解析
--- It’s reported that Chinese more than 40 minutes a day reading WeChat（微信）.
--- It’s true. But I think WeChat is taking too much of our time.
A．spend B．cost C．pay D．Take
九年级英语单项填空中等难度题查看答案及解析
---It’s reported that Chinese _____ more than 40 minutes a day reading WeChat.
---It’s true. But I think WeChat is taking too much of our time..
A. spend B. take C. cost D. pay for
九年级英语单选题中等难度题查看答案及解析
---It’s reported that Chinese ___________more than 40 minutes a day reading WeChat(微信).
---It’s true. But I think WeChat is taking too much of our time.
A. spend B. cost C. pay D. take
九年级英语单项填空简单题查看答案及解析
---It’s reported that Chinese ___________more than 40 minutes a day reading WeChat(微信).
---It’s true. But I think WeChat is taking too much of our time.
A. spend B. cost C. pay D. take
九年级英语单项填空简单题查看答案及解析
—It’s reported that Chinese ______more than 40 minutes a day reading WeChat.
—It’s true. But I think WeChat is taking too much of our time.
A.cost B.pay C.take D.spend
九年级英语单选题中等难度题查看答案及解析
－It’s reported that Chinese _____ more than 40 minutes a day reading WeChat(微信).
－It’s true. But I think WeChat is taking too much of our time.
A.spend B.cost
C.pay D.take
九年级英语单项填空中等难度题查看答案及解析