C. It separated from the mission’s orbiter before entering the lunar orbit. D. It lowered its orbit by starting the braking maneuvers to prepare for its landing. 24. What’s Clive Neal’s attitude towards the landing?

A. Doubtful. B. Positive. C. Neutral. D. Negative.

B

Slowly but surely, we're moving closer and closer to 5G world. From smart-home security to self-driving cars, all the internet-connected devices in our life will be able to talk to each other at lightning-fast speeds with reduced delay. Objectively speaking, the fastest 4G download speeds in the US top out at an average of 19. 42 Mbps. But by comparison 5G promises gigabit （千兆）speeds.

“5G is one of those heralds （使者），along with artificial intelligence , of this coming data age,” said Steve Koenig, senior director of market research for the Consumer Technology Association. “The self-driving vehicle is a great emblem of this data age，and that is to say，it is a sign of time, because with one single task, driving, you have massive amounts of data coming from the vehicle itself, and a variety of sensors are collecting a lot of information to model its environment as it moves. It's pulling in data from other vehicles about road conditions down the lane. It could be weather information, and also connected infrastructure （基础设施）construction. There5 s lots of data behind that task, which is why we need the high speed.

And virtual reality glasses and headsets haven't yet broken the mainstream, but tech companies are joyfully betting that these devices will eventually replace our smartphones. With 5G, that could actually happen. This is notable because companies such as Apple are reportedly developing AR glasses to assist 一 or even replace — smartphones.

Ericsson stated at February's Mobile World Congress how smart glasses could become faster and lighter with a 5G connection, because instead of being weighed down with components, the glasses could rely on hardware for processing power.

But don't get too excited. There s still a lot of work to be done in the meantime, including

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various trials to make sure the radios play nicely with hardware and infrastructure construction so 5G isn't concentrated only in big cities. 25.What is the first paragraph mainly about?

A. A right security of 5G. B. The super speed of 5G. C. A potential dream of 5G. D.

The present world of 5G.

26. Which of the following can replace the underlined word \

A. exhibition B. explanation C. sponsor D. symbol 27. What do some tech companies expect of virtual reality glasses?

A. They will be heavier than present ones. B. They will process power on their own.

C. They will serve people instead of smartphones. D. They will bring a big fortune to tech companies. 28.What will the author tell us in the next paragraph?

A. How to fully expand 5G coverage. B. trials.

C. How to nicely operate 5G hardware. D. cities.

第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选 项。

Everyone is aware that taking good care of our bodies can prevent many medical problems from occurring later. However, we often have less awareness of preventative actions we should take to help with mental health problems. While our mental health may be fine right now, many of us will struggle at some point. 29 It's

impossible to get through life without challenges, but our mental health prevention habits can help us get through difficult times. 30

Keep active. The more active you physically, mentally and socially are, the higher the level of your mental wellness is likely to be. So go for walks and learn something new. There are many other ways to be active. 31

How to widely construct 5G big How to effectively reduce 5G

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Be connected. Regular involvement in social activities with supportive friends and family improves your ability to handle disappointments, and everything else life throws at you. 32 But you can be involved in any manner; even volunteering for an organization can help you be more social.

33 The nature of these activities varies widely from person to person. The key is to identify what gives your life meaning. Volunteering, coaching, teaching, etc. all can contribute to increasing your sense of confidence and satisfaction with life. Many activities can address more than one. The key is to make a plan and stick with it. If you are already struggling, begin to practice these ways to help your recovery.

A. Here are three practical steps.

B. However, good mental health is important. C. Stresses, disappointments and disasters happen. D. Overcome life's challenges before they happen. E. Be committed to activities that give life meaning.

F. The key is to find what keeps you motivated and interested.

G. This can be difficult when you move to a new town or as you get older. 第三部分 语言知识运用（共两节，满分30分） 第一节 完形填空（共20小题,每小题1分，满分20分）

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中?选出可以填入空白处的最佳选项.

One day, my mother found a bald（光秃的）spot on the back of my head and she looked worried. But I didn't take it 34 \17-yearold teenager, I'm finally allowed to grow my hair.”

At first, the loss was very small. A few weeks later, I found that the spot was a little 36 , I began to worry. As the days went by, my hair started to 37 faster and in larger quantities. I began using my remaining hair as a 38 for the bald areas.

Finally, I no longer had enough hair to hide the 39 areas. So I turned to wigs( 假发). At that point I still had some hair above my cars so I 40 it to the

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wig's hairs, trying to make the hairpiece(假发 )look 41 I went to a doctor as well. But his treatment didn't 42 much. I found there was still no 43 of my hair's growing back.

I was 44 to tell my friends about it, because I didn't know how they would 45 the information. What if they 46 me, and didn't I want to be my friends anymore? Slowly and 47 , I told them what was happening. To my 48 . they all seemed to take it.

I came to 49 what happened was not something that I should be 50 of. I learned that I should not let this condition have any influence on my 51 of self -worth. Being bald doesn't 52 who I am, and if I don't let it affect my self identity, then other people are much more likely to 53 me as I am, too. 34 .A. seriously

B. personally

C. securely C. In case C. deeper C. fall out C. shelter C. plain C. fixed C. fashionable C. cost C. vision C. annoyed C. spread C. put up with C. hesitantly C. amusement C. remember C. tired C. pressure C. change

D differently D. Now that D. smaller D. work out D. substitute D. smooth D. added D. appropriate D. mean D. sign D. frustrated D. introduce D. laughed at D. clearly D. sadness D. declare D. ashamed D. guidance D. inform

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35. A. Even though B. If only 36. A. darker 37. A. give out 38. A. cover 39. A. flat 40. A. related 41. A. special 42. A. help 43. A. image 44.A. confused 45. A. handle 46. A. turned to 47. A. firmly 48. A. regret 49. A. promise 50. A. skeptical 51. A. sense 52. A. tolerate

B. larger B. run out B. cure B. empty B. subjected B. natural B care B. scene B. scared B. analyze B. lived up to B. intentionally B. surprise B. realize B. certain B. wisdom B. suspect