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疫情期间，学校都延期开学，老师通过建立QQ学习群来组织教学和管理。假如你是李华，你的美国朋友Jack来信询问QQ学习群对居家学习是否真的有帮助，请你回复。

回信内容包括：

1. QQ学习群的利

2. QQ学习群的弊

3. 你的观点

参考词汇：新型冠状病毒肺炎：COVID-19；：QQ学习群：QQ study group

注意事项：1. 词数100左右；

2.注意回信的开头和结尾，可以适当增加细节，以使行文连贯。

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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。

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。

The day before yesterday, I went to the bookstore where is near my school to buy a reference book. It was Saturday, so there was many people. Under the help of the shop assistants, I quickly got the book I needed. I was about to leave while I found someone trying to steal a man's money. Although I was nervous, but I tried to think of a way to help. Suddenly, a good idea occurred me. I stepped on the man's foot by purpose. As was expected, the man's scream gives the thief a fright, who quickly walked out of the shop. After hear my explanation, the man smiled and showed great gratitude to him.

阅读下面材料，在空白处填写1个适当的单词或括号内单词的正确形式。

Olympic and Paralympic medals for the Tokyo 2020 Games will be made from recycled mobile phones donated by the public.

Olympic host cities have 1. (tradition) obtained the metal from mining firms. But Japan, 2. lacks its own mineral resources, is keen on taking the theme of a sustainable future a step 3. (far).

“A project which allows the people of Japan 4. (participate) in creating the medals is really good, and helps raise the environmental awareness of our citizens,” said Tokyo 2020 sports 5. (direct) Koji Murofushi. “6. the resources of our earth are limited, we need to recycle more and avoid waste. This program is setting an example ”

Collection boxes have been placed in local offices and telecom stores and they will remain there until the metal required 7. (collect).

Members of the organizing committee put forward the idea8. government officials and companies earlier this year and won their support.

As a result, the medals hanging around Olympic winners’ necks will carry even more meaning than usual. People’s personal memories, once 9. (store) in their smartphones and other handheld devices, will take the round shape of an Olympic medal, one of the most precious 10. (prize) in sport.

首字母填空

1.Chessboxing is a game that c_______physical power and brain power.

2.These fish are very a_______and attack everything that comes near them.

3.The c_______is on the side of the German boxer when watching the boxing match.

4.W_______the old computer system is rather complicated, the new system is fairly simple.

5.After running the marathon, she was so exhausted that she didn’t even have the s_______to stand up.

6.Over 700 Chinese and foreign reporters arrived at the city to c_______the party's annual conference.

7.The football match between Italy and Spain in the first round ended in a d_______, and the final score was 2-2.

8.The reason why boxers are so keen to participate in the chessboxing is that they want to prove fighters can be smart people and that smart people can be t______.

9.Although the idea of not having to get up early every morning is rather a_______to me, I still prefer to resume study with my classmates on the campus.

10.Almost everybody a_______the people in Northern Europe, whose countries have high economic productivity, high social equality, high levels of personal happiness.

    In high school I had a math teacher, Mrs. Davies, who took her job seriously and expected her students to put forth the same degree of commitment (付出). Strict but fair, she held our attention with her great method. One of her ______ was for students who were more advanced academically. I chose to ______ it and soon realized that the course was a bit over my head. I ____ with the complex problems that others seemed to learn without much effort.

One Friday we were tested ______ our ability to use a theorem (定理) that no one in the class thoroughly understood. The teacher would ______ our papers based on our ability to progress through the problem which easily filled two pages of formulaic notations (公式符号). I was absolutely ______. Finally, I didn't use the required theorem. Instead, I decided to use more familiar theorems to arrive at an ______. I knew I had failed because I hadn't done the ______ assignment. I became resigned (顺从) to my fate.

Our test papers were ______ back the following Monday. Everyone received a "C" except for me. To my surprise, I received an "A". I ______ that there must be a mistake. I watched ______ as the teacher approached my desk, smiled, and asked for my test ______ back. She then went back to copy my work onto the blackboard, ______ the class how I had arrived at the correct answer. "Mathematics is meant to be a creative tool, pushing our minds to a rewarding answer," she said with confidence. ______ I didn't use the required theorem, she seemed really proud of how I'd worked through the problem. The class saw her fold my test paper and put it into her textbook. She announced that it would be ______ with future classes.

My teacher would have been justified (合理的) in giving me a ______ grade. Instead, she used the ______ to deeply influence a student who often struggled. And after forty years, I still cherish the ______. It helped change my self-image. I ______ up to a broad boundary of possibilities which has made my life an adventure. She understood that teaching went beyond strict demands and could be used to ______ Thank you, Mrs. Davies.

1.A.ways B.tasks C.tests D.classes

2.A.run B.take C.teach D.like

3.A.compared B.struggled C.connected D.argued

4.A.on B.at C.in D.for

5.A.explain B.collect C.print D.grade

6.A.tired B.curious C.lost D.satisfied

7.A.effect B.end C.answer D.interest

8.A.completed B.proved C.fixed D.required

9.A.handed B.held C.thrown D.dated

10.A.hoped B.assumed C.declared D.dreamed

11.A.angrily B.regretfully C.disappointedly D.nervously

12.A.paper B.score C.question D.method

13.A.helping B.following C.showing D.praising

14.A.Since B.Unless C.Though D.Because

15.A.shared B.exchanged C.practised D.checked

16.A.friendly B.failing C.corrected D.wrong

17.A.possibility B.creation C.intention D.opportunity

18.A.change B.memory C.school D.life

19.A.opened B.kept C.made D.looked

20.A.learn B.survive C.inspire D.manage