假定你是李华，你的英国网友Mick 向你咨询如何预防新冠肺炎。请你用英语写一封e-mail，要点如下：
1.不要去人群聚集处，外出时要佩戴口罩；2.注意个人卫生（勤洗手；保持居所清洁……)；3.提高免疫力（多休息、适度运动、均衡饮食…….)。
注意：1.词数100左右；2.可以适当增加细节，以使行文连贯；3.开头和结尾已给出，不计人总词数。
参考词汇：sanitizer洗手液 immunity 免疫力
Dear Mick,
Now, I will give you some tips for preventing COVID-19.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Good luck.
Yours,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧),并在其下面写出该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；2.只允许修改10处，多者（从第11处起）不计分。
My mother was driving alone to a city 192 kilometer away. At first, she feels pretty good about the trip. But her joy was disappeared when she saw smoke coming from the car. She had to pull over immediate. She was at loss what to do when a truck stopped behind her car. A gentleman got off but came over to help. She checked the car, heading to his truck and came back with two fire beaters. He said that he sold fire beaters, so his truck was full off them. And he said jokingly that it was my mother lucky day.
For the past three years, I have been working full-time, attending school, and raising a family. To say I am tired is an understatement (保守的陈述）.
My teenage daughter _______to run a 5K this Saturday morning. When we arrived at the start, it occurred to me that I should run with her, _______I believed that I couldn't do it. In fact, I wasn't _______active at all during the last three years. I was not_______for it, nor did I have the proper nutrition and diet. Despite these _______, I found myself _________for the race. “I'll just walk it,” I reasoned to myself.
Standing in a crowd of people in _______clothes, I heard the gun _______to signify the start of the race. Everyone else was running, so I ran too. The sea of runners _______over a hill, and I was left with only one other woman. It wasn't long before I began to ________, and the other woman did the ________. I could tell she was much ________ than me. Then she began to run again. I couldn't let her________me, so I began to run too. We continued this series of running and walking, and ________I got ahead of her. Then I kept running and walking until I ________a group of women running with a small child, my daughter's pregnant teacher, one of my daughter's ________and then I did the same with her another classmate. I managed to ________the finish line finally.
Sometimes, life teaches us a lesson when we least ________it. Through the race, I ________it out that I can complete what seems ________ for me.
1.A.signed up B.gave in C.moved on D.paid off
2.A.unless B.because C.even though D.as if
3.A.mentally B.socially C.politically D.physically
4.A.excited B.known C.marked D.dressed
5.A.advantages B.barriers C.profits D.differences
6.A.searching B.changing C.registering D.blaming
7.A.sports B.school C.formal D.traditional
8.A.go out B.go off C.go across D.go down
9.A.disappeared B.dropped C.flew D.approached
10.A.run B.walk C.jump D.quit
11.A.right B.opposite C.same D.next
12.A.younger B.taller C.stronger D.older
13.A.control B.cheat C.beat D.catch
14.A.deliberately B.fortunately C.eventually D.unconsciously
15.A.passed B.missed C.visited D.admired
16.A.drivers B.classmates C.volunteers D.neighbors
17.A.cross B.remove C.draw D.achieve
18.A.add B.change C.enjoy D.expect
19.A.clear B.figure C.hand D.throw
20.A.practical B.obvious C.unnecessary D.impossible
Every little thing you do really makes a difference! There are classes and clubs focused on various social problems. 1.One cause that has been popular in recent years is helping the environment and preserving our resources. There are several ways that you can help protect this planet we call Earth. Using reusable bags is one of those vital ways to protect the world's resources.
Plastic grocery-type bags that get thrown out end up in landfills or in other parts of the environment. These can make animals stuck in them or mistake them for food.2.
Whether you are shopping for food, clothes or books, use a reusable bag. This cuts down on rubbish and prevents animals from getting a hold of them. There are even some stores that offer discounts for using reusable bags! 3.I have heard of people using reusable bags when they move!
If you forget your reusable bags at home, buy a new one. 4.Just make sure you remember to put them there and never leave home without them!
If you are in a position where you need to use the plastic bags, reuse them next time you go shopping, or use them for something else. Just do not be so quick to throw them out!
There are some states that are outlawing(宣布……不合法）or charging extra for using plastic bags. 5.
A.Also, it takes a while for them to break down.
B.Students are constantly learning what they can do.
C.However, you had better keep a couple of bags in your car.
D.These bags are useful for things other than shopping as well.
E.Using reusable bags helps the environment and your budget!
F.They teach students how they can help deal with these problems.
G.When buying drinks, consider buying those with reusable water bottles.
How the languages of the world appeared is largely a mystery. Considering that it might have taken thousands of years, it is attractive to see how deaf people can create novel sign languages unconsciously. Interestingly, children played an important role in the development of these novel languages. However, how exactly this happened has not been documented.
In a series of studies, researchers attempted to recreate exactly this process. Children were invited to stay in two different rooms and an online connection was set up between them.After a brief familiarization with the set- up, the researchers sneakily (偷偷地）turned off the sound and watched as the children found new ways of communicating that go beyond spoken language.
The children's task was to describe an image with different themes in a coordination game. With concrete things-like a hammer or a fork-children quickly found a solution by imitating the matching action, for example, eating, in a gesture. But the researchers repeatedly challenged the children with new, more abstract pictures. In the course of the study, the images to be described became more and more complex, which was also reflected in the gestures that the children produced. In order to communicate, the children invented separate gestures for actors and actions and began to combine them-thus creating a kind of small local grammar.
How does a language come into being? Based on the present study, the following steps appear reasonable: first, people create reference to actions and objects through signs that resemble things. The precondition for this is a common ground of experience between interaction partners. Partners also coordinate (配合）by imitating each other so that they use the same signs for the same things. The signs thus gain interpersonal and eventually common meaning. Over time, the relationships between the signs and things become more abstract and the meaning of the individual signs becomes more specific. Grammatical structures are gradually introduced when there is a need to communicate more complex facts. However, the most remarkable aspect of the current studies is that these processes can be observed under controlled circumstances and within 30 minutes.
1.How did the researchers carry out the experiment?
A.By making the communication in total silence.
B.By inferring to and copying the documented scene.
C.By observing children communicate face to face.
D.By listening secretly to the communication of children.
2.What should children do in the studies?
A.Show how to do different things with different tools.
B.Take several oral examinations on foreign languages.
C.Describe things to others without spoken languages.
D.Name some abstract objects which they have never seen.
3.What is the process of creating a language?
A.Signs→Accepted meaning→Interpersonal meaning→Language
B.Interpersonal meaning→Accepted meaning→Signs→Language
C.Accepted meaning→Interpersonal meaning→Signs→Language
D.Signs→Interpersonal meaning→Accepted meaning→Language
4.What is the text mainly about?
A.The development of novel sign languages.
B.The first steps of the making of languages.
C.The role children play in creating languages.
D.The circumstances of languages coming into being.
If nothing is done to stop rising sea levels, the homes of 200 million people could be underwater by the year 2100. That's according to a study published in the scientific magazine Nature Communications. The global sea level has been rising for more than a century, and more quickly over the last several decades. That's because climate change is melting glaciers (冰川）and ice sheets. Higher sea levels flood coastlines. If steps aren't taken to protect cities and towns, people could be forced to move inland.
One European country is especially vulnerable to flooding: the Netherlands. More than a quarter of the country already sits below sea level. But the Netherlands has developed tactics (策略）for dealing with water. For that reason, many experts believe that even though it's vulnerable to rising seas, the country is well-equipped to deal with them.
In the region that is now the Netherlands, people have been inventing ways to keep out water for at least 900 years. The country is famous for its dikes (堤坝），which are long walls that prevent flooding. But in recent years, experts there have developed new techniques that go far beyond dikes, some of which are high-tech.For example, the Maeslantkering is a massive storm-surge barrier that protects the city of Rotterdam from seawater. It's controlled by a supercomputer. It closes automatically when Rotterdam is threatened by floods.
Other projects look to nature for inspiration.The DakAkker is a farm located on top of an office building in Rotterdam. The building's roof holds rainwater to prevent runoff. Another example is the Floating Farm. Its designers wanted to make room for agriculture in a waterflooded city. More than 30 dairy cows live on the farm, which floats in Rotterdam's waterways.The farm generates (生产）its own energy using floating solar panels.
“It's not that our solutions are the best,” says Henk Ovink, who works on water issues for the Dutch government. “But we provide ideas for your country's solutions.”
1.What does the underlined word“vulnerable”in paragraph 2 probably mean?
A.Heavily independent. B.Easy to be attacked.
C.Experienced in solving. D.Totally unconcerned.
2.What can we learn about“the Maeslantkering”?
A.It's a tactic to deal with glaciers. B.It's a high-tech life-saving ship.
C.It's a computer-controlled dike. D.It's a high building for escape.
3.Where is the Floating Farm?
A.On the river. B.Under the water.
C.On the long dikes. D.On top of a building.
4.What does Henk Ovink think of Dutch's tactics to fight floods?
A.An outline. B.An instruction. C.An assumption. D.An inspiration.
