假定英语课上老师要求同学们交换修改作文，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。错误仅涉及一个的词的增加、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。
注童：1.毎处错误及修改均仅限一词；
2.只允许修改10处.多者（从第11处起）不计分。
On August 21,I was working on my homework, a composition titling “My Hero/Heroine”. I stuck at the very beginning, trying to figure out what would be my hero/heroine.
Attracted by the cheers from the living room, I opened the door only to find my parents were watching the volleyball matches of women's final. Then I decided to take the break and joined in them. The sense of nervousness was overwhelming as the score was quite closely between China and its opponent.
To our delight, China won in the end. We couldn't help feel proud as Chinese! The volleyball players had trained so hard before and fight till the last minute. Without doubt, they were not only my heroines, and the heroines of China! I started to write my composition.
阅读下面材料，在空白处填入适当的内容（1 个单词）或括号内单词的正确形式。
Many people take the idea of saving money very seriously. Back in 1924, in Italy, a group of people 1. (think) the inability to resist spending a major social problem. They had the idea of starting a day to remind people to put away some money for a rainy day. This is how World Saving Day, held on Oct. 31st 2.(annual), was started, and it's still going strong in 2019.
Not surprisingly, a movement 3.(target) the poor was started. People in the underdeveloped world are more open 4. calls to be careful with money. But 5. idea of being thrifty (节俭) has also become popular among the rich. Take Mark Zuckerberg for example. The Facebook founder, one of the world's 6.(rich) people, doesn't spend very much money on himself.
Other people don't spend money because they don't like the culture of 7.(consume). This is connected to the view 8. we should make ourselves happy through the activities we take part in, rather than with what we buy.
But however we view money, moderate spending is certainly a good idea when we are still too young to get a job. There is a British saying that 9.(offer) some good advice in this situation: “Look after the pennies, and the pounds will look after 10.(they).”
Throughout my life, I was never very athletic. I wasn’t really into____, sports or conflict. The only_____I enjoyed were_____things like watching TV and playing computer games.
It was during my junior year in high school that I realized I needed a_____. My friends were joining the long distance running club and_____me to do it also. At my school, there were no qualification_____; every student was accepted.
As everyone gathered around on the first day of practice, the_________announced it was time for “warm-up”. I imagined the warm-up would be a_____jog around the 400-metre track. I soon_____it was a 1-km run. After completing the run, I was_______! I wondered, “If that’s warm-up, what’s next?” The_____workout for the day was a 5-km run, which I mostly walked. When I came home, I really considered______. However, I______ myself to keep at it and try harder.
Of course, there was no real improvement______. I always came in last during practice and the first few____. As days and weeks went on, I really tried my best. During practice, I would always keep at the_____of the group; the fastest, more_____runners were always ahead, while the laziest were behind. As the result of my______, warm-up became a real warm-up. The 5-km runs transformed into an_____day of practice. And I was no longer last in anything we did. For a former couch potato, like me, this was a(n)____.
1.A.rules B.arts C.competition D.schoolwork
2.A.procedures B.activities C.lessons D.programs
3.A.endless B.pointless C.important D.challenging
4.A.change B.rest C.team D.result
5.A.accompanied B.assisted C.required D.invited
6.A.trials B.alternatives C.opportunities D.reasons
7.A.competitor B.coach C.reporter D.referee
8.A.hard B.boring C.practical D.casual
9.A.decided B.suspected C.realized D.agreed
10.A.sent off B.taken away C.turned down D.worn out
11.A.real B.best C.expected D.fun
12.A.complaining B.quitting C.crying D.refreshing
13.A.convinced B.taught C.sent D.helped
14.A.actually B.gradually C.separately D.instantly
15.A.performances B.presentations C.races D.steps
16.A.middle B.top C.front D.bottom
17.A.popular B.confident C.serious D.relaxed
18.A.inspiration B.determination C.loyalty D.contribution
19.A.unimaginable B.avoidable C.easy D.optional
20.A.exception B.example C.promotion D.success
Leonardo da Vinci and Nature
In the modern world, art and science are two very separate activities, but in Leonardo’s time they were closely connected. Science meant mathematics and medical studies. 1. Mathematics included practical work like surveying land for making maps as well as measuring the movements of the stars in the sky. An artist might need to measure the different parts of the body. He could also use mathematics to place things in relationship to each other in a drawing or painting so the scene looked correct. 2.
Mathematics was also connected to music because musical sounds have a fixed relationship with each other that can be described in numbers. 3. More than this, though, Leonardo believed that numbers were a part of all things in the world, including music, and he said that “without them nothing can be done.”
“Nature has kindly given us things everywhere to copy,” wrote Leonardo. In all his activities, Leonardo was trying to discover the rules that control nature. In his search for those rules, he looked very carefully at a lot of examples and details. Actual experience was more important to him than opinion, and he worked from facts to ideas. 4. His purpose was to examine the world so he could copy it in beautiful paintings and sculptures. He also wanted to learn from the clever solutions of nature.
5. His quick little sketches (素描), often done while wandering outside, helped him to catch a movement or a shape. More careful drawings would be done at a desk with a pen and ruler. In July 2001, a small drawing by Leonardo was sold for $12 million. It was the most expensive drawing in the world.
A.Leonardo was always drawing.
B.How could these be connected with art?
C.Leonardo’s ideas were vastly ahead of his time.
D.Mathematicians and doctors worked to discover the unknown.
E.Above all, Leonardo wanted to understand how and why things worked.
F.You will see a good example of such positioning in the painting of The Last Supper.
G.Leonardo himself was a very good musician and liked to play an instrument and sing.
Following the outbreak of the novel coronavirus pneumonia (NCP), also named COVID-19 by WHO, there is a general fear of the unknown virus as its full effects remain to be seen. Fever, coughing, sore throat, difficulty breathing —the NCP’s symptoms are similar to the common cold or the flu, but it’s potentially more dangerous.
Viruses could be deadly, like HIV and Ebola. But what are viruses? How can they cause so much trouble?
Viruses are non-living organisms (有机体) approximately one-millionth of an inch long. Unlike human cells or bacteria, they can’t reproduce on their own. Instead, they invade the cells of living organisms to reproduce, spread and take over.
Viruses can infect every living thing – from plants and animals down to the smallest bacteria. For this reason, they always have the potential to be dangerous to human life. Sometimes a virus can cause a disease so serious that it is fatal. Other viral infections trigger no noticeable reaction.
Viruses lie around our environment all of the time, waiting for a host cell to come along. They can enter our bodies by the nose, mouth, eyes or breaks in the skin. Once inside, they try to find a host cell to infect. For example, HIV, which causes AIDS, attacks the T-cells of the immune system.
But the basic question is, where did viruses first come from? Until now, no clear explanation for their origin exists. “Tracing the origins of viruses is difficult”, Ed Rybicki, a virologist (病毒学家) at the University of Cape Town in South Africa, told Scientific American, “because viruses don’t leave fossils and because of the tricks they use to make copies of themselves within the cells they’ve invaded”.
However, there are three main hypotheses (假说) to explain the origin of viruses. First, viruses started as independent organisms, then became parasites (寄生者). Second, viruses evolved from pieces of DNA or RNA that “escaped” from larger organisms. Third, viruses co-evolved with their host cells, which means they existed alongside these cells.
For the time being, these are only theories. The technology and evidence we have today cannot be used to test these theories and identify the most plausible explanation. Continuing studies may provide us with clearer answers. Or future studies may reveal that the answer is even murkier (含糊不清的) than it now appears.
1.What can we learn about viruses from the text?
A.Viruses have nothing to do with the common cold.
B.Viruses are really small living organisms.
C.Viruses can’t reproduce unless they find a host cell.
D.Viruses enter our bodies mainly through the mouth, nose and hair.
2.Which of the following might explain the origin of viruses?
A.They evolved from the fossils of large organisms.
B.They evolved from parasites into independent organisms.
C.They evolved from the T-cells in animals.
D.They evolved along with their host cells.
3.The underlined word “plausible” in the last paragraph probably means ________.
A.reasonable B.common
C.creative D.unbelievable
4.What can we conclude from the text?
A.Viruses live longer in human host cells than in animals’.
B.Viruses will become more like bacteria as they evolve.
C.It may take a long time to understand the origin of viruses.
D.The author is optimistic about future virus research.
While astronauts in space get to do many exciting things，they miss out on ordinary things that we all take for granted—being able to walk on firm ground，hanging out with family and digging into a slice of hot steaming pizza． Though not much can be done about the first two things，there may soon be a solution to the third one，thanks to this cool 3-D pizza printer！
About a year ago，NASA offered $125 ,000 to Anjan Contractor， a 3-D technology expert，to build a device（设备）that would allow astronauts to make pizza on demand． The mechanical engineer promised that his invention would produce pies in large quantities that looked， tasted and even smelled like pizza made in common ovens．
Late last year， the engineer presented a video of his first prototype（原型）that begins by creating a single slice of dough（面团）that is cooked and printed at the same time．Then comes the tomato “sauce” — a mix of tomato powder，oil and water and finally，a protein slice that resembles cheese．While the video doesn’t show the baking process，the inventor says that once the pizza is printed，it can be ready to be consumed in 7 seconds．
While the pie in the video looks delicious enough to attract any pizza lover，Anjan Contractor is far from ready for astronauts．That’s because he still has to find a solution to make the food container in the printer last for 30 years．Though that may sound unrealistic，actually it is not．
Anjan Contractor believes that the only way that is possible is that the water is removed from all the ingredients（配料）and then they are reduced to the powder form．This，as you can imagine，will not be so easy．But，while the printer may not be ready for space，it certainly looks ready enough for people on earth．Hopefully，NASA and Contractor will consider selling it to those not fortunate enough to go to Mars！
1.Why does the author mention the things that astronauts in space cannot do？
A.To ask us not to take common things for granted．
B.To show they live a difficult life there．
C.To show their life is boring in space．
D.To introduce the topic of the text．
2.NASA offered $ 125，000 to Anjan Contractor mainly to _______．
A.create some new type of 3-D printer
B.attract more companies to work for NASA
C.help astronauts in space enjoy fresh pizza one day
D.produce pizza in large quantities to earn great profits
3.The biggest challenge that Anjan Contractor is faced with now is probably that _______．
A.he has no money left to go on with his research
B.the pizza doesn’t seem appetizing to pizza lovers
C.he has no way to make pizza that can last for thirty years
D.he cannot make the food container last for decades
4.What’s the best title of the passage？
A.NASA is trying its best to help astronauts eat better
B.Astronauts may soon be able to enjoy steaming hot pizza
C.NASA is working on making pizza for common people
D.A 3-D pizza printer has been used to make pizza
