The woman thinks going to school by bike is a bit__________.
Going to school by taxi is the most _________way, but it’s also the most expensive.
The boy went to school by_________, but there was a road accident.
_________ was late for school except the boy today.
You might have noticed that sometimes, when you’re playing mobile games or making a video call, the picture suddenly freezes(卡顿)because the network speed is too slow. When you try to download a movie on your phone, it seems to take forever.
These annoying things will soon become things of the past, as China just issued commercial licenses(发放商业牌照)for 5G networks on June 6. This means that China’s telecommunications(电信) companies will be able to offer 5G network speeds for mobile phone users.
The “G” stands for generation (代) . 1G let us talk to each other, 2G let us send messages, 3G gave us mobile data and Internet, and 4G made all of these things faster. So what will 5G bring？
First of all, 5G is so fast that it will allow us to download an entire HD movie in a second. The delay(延时) between sending and receiving data will be shortened. Now, 4G takes about 100 to 200 milliseconds(毫秒)，while humans have a reaction time of about 200 to 300 milliseconds. But 5G will get the delay down to 1 millisecond or less, which is almost real-time.
Because of this increase in speed, it will be possible to create and use new kinds of technology. Robots will be used to do operations because doctors will be able to control them from somewhere else without any delay. Self-driving cars will be able to drive more safely because they can smoothly communicate with other cars, traffic lights and road Sensors (传感器). 5G also makes the Internet of Things(IOT物联网)possible.
All in all, 5G will shape every type of technology that it touches. And you won’t have to wait too long for that to happen.
1.From the first paragraph we can know that________.
A.people can’t download movie at all on the phone
B.making a video call is impossible for phone users
C.sometimes the network speed is too slow to use
D.mobile games can’t be downloaded on the phone
2.What happened on June according to the passage？
A.China just gave commercial licenses officially for 5G networks.
B.Every mobile phone user could improve the network speed
C.Most mobile phone users didn’t use 4G anymore.
D.All the mobile phones are much cheaper than before.
3.Which of the following is NOT true according to the passage?
A.5G will make people’s life much easier and more convenient.
B.Self-driving cars will become safer because of the use of 5G.
C.Using 5G to download something doesn’t take any time at all.
D.5G can make people download an entire HD movie in a second.
4.We can find the passage________.
A.from an ad B.in a newspaper C.in a storybook D.in science fiction
Billy’s favorite color is orange. But he can’t see what orange looks like. Billy is blind.
A month after he was born, his mother noticed that his eyes weren’t quite as big as a normal baby’s. “Billy would never be able to see.” the doctor told his mother. After that Billy’s mother began talking to him, describing things she saw outside the window. She described everything to him.
Billy does not only depend on his mother’s descriptions to learn about the world around him. He sees with his ears and his hands, too. He has perfect hearing. When people make phone calls, he can tell the numbers they dial(拨).
Billy loves computer science. He began teaching himself computer programming when he was just seven years old. His dream school would be Stanford University(斯坦福大学). He gets top grades in his classes, making that a real possibility.
“You can’t let excuses get in the way of your dreams, and if you do that you can’t move forward and reach your goals,” said Billy.
1.From the passage, we know that ________.
A.Billy can’t hear B.Billy can’t see
C.Billy can’t walk D.Billy can’t talk
2.How did Billy’s mother help him?
A.By teaching him how to draw. B.By asking teacher for advice.
C.By describing everything to him. D.By sending him to his dream school.
3.When did Billy begin teaching himself computer programming?
A.When he was 7 years old. B.When he was in Grade 5.
C.When he was high school. D.When he was at university.
4.His dream school would be ________.
A.T-singhua University B.the University of Hong Kong
C.Stanford University D.University of Cambridge
