How does a police department build a small army of detective dogs as smart as Sherlock Holmes?It’s easy, just___________________clone the best dog of these dogs. Scientists in China are already on the ___________________.__________________ the report, genetic researchers in Beijing have successfully used the DNA from a“Sherlock Holmes of police dogs”—HuaHuangma to create a clone puppy.The idea is that by __________________ the babies have the same strong genes as the mother,these pups(小狗) will also be top performers. It is _________________ that, HuaHuangma is a very good girl.

The 7-year-old Kunming wolf dog has helped __________________ many murder cases for the Yunnan Province police.Her   contributions to___________________ to the peace have made her “first-class dog”.HuaHuangma’s minime—Kunxun was born in a lab in December, following _________________done by researchers from a university. Tests show that Kunxun and HuaHuangm are a“99.9 percent”DNA match, and the clone-pup has already_________________other wolf dogs on several tests.Kunxun will now begin training in drug detection,and is ______________ to be a grown—up police dog at 10months.

If Kunxun has as bright of a future as hoped,it’ll ___________________ a huge police-dog training time,which usually takes about 5 years.The final goal,is to mass—produce high—performing police dogs that can be__________________ in a couple of months instead of years._________________ the plan proves possible or not in the long term,Kunxun is not the first clone police dog.In South Korea, six _________________ police dogs began patrolling(巡逻) the streets in 2008.In 2009,the same company produced five clone puppies from a police dog.The police dog discovered the last__________________ of the Sept.11 attacks in New York.The pups were reportedly trained as search-and-rescue dogs themselves.

Since computers were invented in the USA in the 1950s, they have become very important in many areas of work and life. As we know, computers are very ________ in technology and business. In space, computers are used to________ the speed and direction of a spaceship. In factories, robots are controlled by computers. They can do work that is ________ to humans. In business, computers are used to place and cancel (取消) orders. They are also making the workplace ________ and better.

Since the Internet came into being, people’s lives at home have been ________, too. More and more people have personal computers that are used to play games and watch movies. Thanks to the Internet, people communicate by sending e-mails and chatting online. The whole world is ________. The Internet is making the world smaller, like a village.

Computers have improved our lives, but they have brought ________, too. For example, if we ________ computers too long, we may get headaches or sore eyes. If we play computer games too much, we won’t have enough ________ to study or exercise. Besides, not everything we read on the Internet is true or good for us. Computers ________ us at work and at home, but they must be used properly.

Doctors diagnose(诊断) patients online. Robots help to send food to _____. Drones(无人机) monitor people in crowds. We are using new ways to fight the novel corona virus. They are safe. They can help people ___ in touch with each other. Let’s meet these high-tech helpers!

Tele-medicine(远程医疗) system

With remote video system, doctors can diagnose patients without seeing them in person. Also, doctors from different hospitals can have a meeting by using the system ____. This saves a lot of time. Both Huoshenshan and Leishenshan hospitals have this system.

Drones warn people in groups

In some rural places, police use drones to monitor people in groups. When the drone _____ big groups of people, police will warn them through the loudspeaker on the drone. In some places, people also use drones to disinfect(消毒) their ___.

3D “hospital”

A company in Shanghai ___ 15 rooms by using 3D technology. They sent the rooms to Hubei for patients to live in. Each room is about the ____ of your bedroom. A 3D printer takes 24 hours to build the rooms.

AI system check for fever

At the Mudanyuan subway station in Beijing, an AI system can check people in crowds to see ___ they have fevers. When people ____, the system scans people’s faces. The system can check about 300 people in one minute.

Smart robots   

Time to eat! In some hospitals, smart robots help to deliver food to patients. The robots can also help to ____ medicine and show the way to people.