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假定你是李华，你校交换生David对兵马俑十分着迷。请你写封邮件邀请他聆听一场有关兵马俑的讲座，要点包括:

1.时间、地点；

2.主讲人；

3.主题及内容。

注意：

1.词数80左右；

2.可以适当增加细节，以使行文连贯。

参考词汇：兵马俑terracotta warriors

Dear David,

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

阅读下面短文，根据所给情节，使之构成一个完整的故事。

Mr. Ellet gave George a bright silver dollar for a New-year gift . Little George thought of all the fine things he might buy with it. The ground was all covered with snow; but the sun shone out bright, and everything looked beautiful. So he put on his hat , and ran out of home. As he went skipping along, he met some boys throwing snowballs. George soon engaged in the sport, He sent a ball at James Mason, but it missed him, and broke a window on the other side of the street. George feared someone would come out of the house and find him. So he ran off as fast as he could. As soon as he got round the next corner, George stopped, because be was very sorry for what he had done. He said to himself, “I have no right to spend my silver dollar, now. I ought to go back, and pay for the glass I broke with my snowball. I will go and pay for it. If it takes all my money, I will try not to be sorry. I do not think the man will hurt me if I pay for the what I have done.”

He went up and down the street, and felt very sad. He wished very much to buy something nice. He also wished to pay for the broken glass. At last he said, “It was wrong to break the window, though I did not mean to do it. It is only fair to pay the gentleman for his loss” George started off, and felt much happier for having made up his mind to do what was right. He rang the doorbell. When a gentleman came out, George said, “Sir, I threw a snowball through your window. But I did not intend to do it. I am very sorry, and wish to pay you. Here is the dollar my father gave me as a New Year gift.” The gentleman took the dollar, and asked George if he had no more money. George said he had not.

注意：

1.所续写短文的词数应为150左右；

2.应使用5个以上短文中标有下划线的关键字语；

3.续写部分分为两段，每段开头语已为你写好；

4.续写完成后，请用下划线标出你所使用的关键字语。

Paragraph l: 

So, after asking George his name, and where he lived, the gentleman called him an honest boy, and shut the door, 

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Paragraph 2:

George very honestly told his father all about the broken window. 

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Not long ago, Linda was sting by a hospital bed in Houston, Beside her _______ her 88-yearold father. His heart was _______ It needed surgery. What _______ her as much as his heath was that all day the two of them bad _______ in nothing but depressing small talks. They had always had good _______. But now he seemed to be _______ with the hospital, talking about the disappointing food, the _______ tests, and the demanding doctors. His once wide-ranging _______ seemed to have been limited to the size of the room. “It is really _______  to sit with a person in a hospital” Linda said. One day, something __________ the eye. It was a book that some friend had __________ as a gift. Her father had always been a __________ but lately he didn't have the energy or focus to read. She __________ the book and started to read it out loud. “ __________ it changed the atmosphere and __________”she said. That afternoon, Linda read to her father for an hour. It was a __________ and a pleasure for both of them. Reading gave the daughter away to __________ with her father and help him in a situation that was otherwise out of her __________. Listening allowed the father to __________ on the sound of her voice out of the hospital and back to the intellectual engagement.

“When I was a kid, he would read to me, it became opportunities to repay a debt of __________ “Linda said.

1.A.lay B.followed C.stood D.waited

2.A.breaking B.beating C.weakening D.recovering

3.A.troubled B.attracted C.astonished D.moved

4.A.believed B.taken C.joined D.engaged

5.A.relationship B.conversations C.friends D.manners

6.A.dissatisfied B.careful C.popular D.generous

7.A.impressive B.simple C.practical D.endless

8.A.collections B.interests C.diets D.visitors

9.A.traditional B.enjoyable C.hard D.worthwhile

10.A.covered B.met C.blinded D.rolled

11.A.accepted B.held C.read D.brought

12.A.patient B.reader C.listener D.doctor

13.A.picked up B.looked up C.put up D.made up

14.A.Usually B.Generally C.Immediately D.Occasionally

15.A.habit B.idea C.surroundings D.mood

16.A.challenge B.relief C.talent D.pity

17.A.connect B.agree C.chat D.live

18.A.mind B.sight C.hands D.heart

19.A.travel B.reflect C.call D.put

20.A.honor B.money C.service D.gratitude

When Chinese researchers successfully figured out the genetic structure of the novel coronavirus in January, many people thought a vaccine(疫苗) would soon follow.  1.  

First, scientists must work together to understand the structure of the virus and develop potential vaccines to fight against it.  2.  After passing animal tasting, clinical trials of the vaccine are then done on humans. Finally the vaccine needs to be approved by officials before it can be made available to the public. All of the steps are necessary to make sure that the new vaccine is safe for people to use.  3.  With technological advancements and government funding (资金), the time it takes to develop vaccines can be reduce.

CEPI, an international organization that develops vaccine, for example, is funding programs that focus on making a vaccine for the novel coronavirus. About 35 companies and academic institutions, including the US company Moderna, funded by CEPI, are searching for a COVID-19 vaccine.  4.  Once a vaccine is ready, 100 million doses (剂量) could be made within a year, according to Modena’s CEO Stephane Bancel.

 5.  Not only do they help to save individual lives, but they also help the local and even the global community.

A.This is why a vaccine is developed.

B.But that’s a lot easier said than done.

C.However, experts say vaccines are unlikely to be available

D.Once these first vaccines are made, they are tested on animals.

E.Sometimes, this process can take as long as 10 to 15 years to complete.

F.Even though vaccines take a long time to develop, they are very important.

G.A few have begun testing in animals, while Moderna’s attempt has started human trials.

    Implanted (植入的) devices, such as heart pacemakers, are a valuable part of modern medicine. Their use, however, is limited by the need to renew their batteries and this is a particular problem for those inside the wearer’s head. Therefore, a way to power such implants without replacing their batteries at all would thus be welcome. And Dr Hyuck Choo and his colleagues think they have one. They plan to collect the necessary energy from the vibrations(震动) that occur when someone is talking.

DrChoo’s power plants are small sheets of lead zirconate titanate, a material that produces electricity when it vibrates. He knew that sheets of the size he chose have a resonance (共振) at around 690Hz. This is well above the normal range of the human voice. Using larger sheets would lower the resonance frequency. So he sought to lower a sheet's resonance frequency without increasing its area by caring a special shape out of it. And it worked!

When Dr Choo and his colleagues tested the carved sheets by exposing them to a range of frequencies and monitoring the amount of electricity generated, they found that the voltage was between 100Hz and 120Hz (approximately the common frequencies of adult male vices), and also between 200Hz and 250Hz (the female voice s common frequencies). And, although the amount of power produced is not huge, it seems adequate for the task.

As Dr Choo reported at a conference on January 26, he and his team were able to harvest a tenth of a mill watt per square centimetre of lead zirconate titanate from the voice of a man talking at 70 decibels (分贝), which is normal speaking volume, and tents from someone shouting at 100 decibels Implants usually require a tenth of a mill watt or less to function so this suggests a practical device might be within reach-especially as the vibrations produced by the voice travel efficiently up through the skull, meaning the generator could be put into an implant.

1.What limits the use of implanted devices?

A.The shape of the devices. B.The effect of the vibrations.

C.The need for continuous power. D.The difficulty in producing the battery

2.What problem did Dr Choo have to solve in Paragraph 2?

A.To renew the batteries of the implants.

B.To make the resonance above the human voice.

C.To pick out suitable material for his power plants.

D.To ensure the resonance of the sheets fit in with the human voice.

3.What does “the task” in Paragraph 3 refer to?

A.Exposing the sheet to sounds. B.Powering the implanted devices.

C.Lowering a sheet's resonance frequency. D.Monitoring the electricity produced.

4.What can we learn from the last paragraph?

A.The voice powered device is likely to be available.

B.A man has to shout loudly when using the device.

C.The device will be put into production after the conference.

D.The generator should be put into the skull when used.