假设你是星光中学的李华，将参加主题为“Let's Ride Bicycles”的英语演讲比赛。请撰写一份演讲稿，主要内容包括：
1．目前汽车带来的空气污染和交通堵塞等问题；
2．骑自行车的益处，如节能环保、有利健康等。
参考词汇：低碳生活 lowcarbon life 节能 energy saving
注意：1. 词数：100词左右；
2．演讲稿开头和结尾已给出，且该部分不计入总词数。
Good morning, everyone,
I am Li Hua from Xingguang Middle School. The topic of my speech is “Let's Ride Bicycles”．
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Thank you !
文中共有10处语言错误，每句中最多有两处。错误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(∧), 并在此符号下面写出该加的词。
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、只允许修改十处, 多者(从第11处起) 不计分。
It is Mother’s Day today. Though it’s a western festival, it’s popular in China now.
Mom has a full-time job, so she has to do most of the houseworks. She is a great mother. Both Dad or I planned to do something on Mother’s Day. We get up early in the morning. Dad cleaned the house, and then went on shopping. When he returned , I found a bunch of flowers in her hand. I asked Mom to stay in the sitting room and I cooked in kitchen. The dishes what I cooked were Mom’s favoritest. At dinner, we said to her, “Happy Mother’s Day!”Mom was grateful and moving.
The Internet is an amazing information resource. Students, teachers, and researchers use it as 1. searching tool. Journalists use it 2.(find) information for stories. Doctors use it to learn more about unfamiliar diseases and the 3. (late) medical development. When we are talking about it , it 4. (use) by ordinary people for shopping, banking, bill-paying, and communicating with family and friends. It has the magical power to connect one with people from 5. countries and cultures. However, 6. the Internet has many advantages , there are also certain fears and concerns connected with it. One concern relates to a lack of control over 7. appears on the Internet. On television and radio there are restrictions (限制）on what kinds of programs can be broadcast, 8. on the Internet it is not the case. Parents cannot determine what is suitable 9. their children to see because the 10. (appear) of any information is not under their control.
One day, during the long summer holiday, Mrs. Martins took Brendon and his younger brother Kim to the beach. As soon as they got there, the two children _______ down to the sea to try out their new surfboards（冲浪板）. They were soon swimming out to the _____ and riding back on their boards.
After a while, Brendon noticed that Kim was ____ away from him.
“Come back, Kim,” he shouted. “Mum said we have to stick together.” Kim put his arms over the side of his board and began paddling (划水) , but _____ getting closer, he began moving further away.
“Brendon, help!” called the young boy. “I’m ____ in a rip current (离岸流).” Brendon quickly paddled over to his _____.
“____ the back of my board and I’ll pull you to the beach,” he told the ____ boy. But the rip was too ______ and soon both Brendon and Kim were moving further from the beach.
“I can’t ____ see our beach any more,” cried Kim.
“Yes, but we’re not moving out of the sea any more. We’re just floating along the coast. See, there’s the next beach.” said Brendon ____. “We’re moving closer to it.” 
Sure enough, the current was now taking them closer to the beach and becoming_____.
“Right, it’s time to paddle,” said Brendon, suddenly full of ____.
Before long the children paddled to the beach _____ they sat for a few moments to _______ their breath. After a while, they_____ up their boards and started the long walk back to their mother. When they got there, they were _______ to find the beach full of people and boats.
“Thank goodness!” cried their mother running to _________ them. “We were just about to start a search. One minute you were in the waves in front of me and the next you were gone. I was so_____.”
“It’s OK,” said Brendon, hugging his mother. “We did just as you told us and ______ together.”
1.A. rushed B. got C. came D. jumped
2.A. beaches B. waves C. fields D. sands
3.A. turning B. breaking C. floating D. pulling
4.A. because of B. in addition to C. in case of D. instead of
5.A. found B. caught C. stricken D. rested
6.A. mother B. sister C. friend D. brother
7.A. Hold onto B. Put down C. Hold up D. Take off
8.A. determined B. frightened C. concerned D. excited
9.A. hard B. deep C. strong D. soft
10.A. still B. already C. hardly D. even
11.A. carefully B. sadly C. cheerfully D. eagerly
12.A. weaker B. clearer C. lower D. faster
13.A. spirit B. energy C. power D. force
14.A. how B. why C. where D. when
15.A. save B. feel C. hold D. catch
16.A. picked B. mixed C. rolled D. fixed
17.A. angry B. anxious C. hurried D. surprised
18.A. punish B. beat C. hug D. praise
19.A. disappointed B. worried C. embarrassed D. amazed
20.A. stuck B. shouted C. shook D. swam
1.When a person does a certain thing again, he is impelled(迫使) by some unseen force to do the same thing repeatedly; thus a habit is formed. Once a habit is formed, it is difficult, and sometimes impossible, to get rid of. 2.Children often form bad habits, some of which remain with them as long as they live. Older persons also form bad habits as long as they live. Older persons also form bad habits, and sometimes become ruined by them.3.Many successful men say that much of their success has something to do with certain habits in early life, such as early rising, honesty and thoroughness（工作缜密）. Among the habits which children should not form are laziness, lying, stealing and so on.4. Unfortunately older persons often form habits which ought to have been avoided5.
A.There are other habits which, when formed in early life, are of great help.
B. Whether good or not habits are, they are easy to get rid of.
C. We ought to keep away from all these bad habits, and try to form such habits as will prove good for ourselves and others.
D. Habits, whether good or bad, are gradually formed.
E. It is very important for us to know why we should get used to good habits.
F. These are all easily formed habits.
G. It is therefore very important that we should pay great attention to the formation of habits.
Many of us remember being in awe(敬畏) when we saw cloned dinosaurs running wild in the film Jurassic Park. And the idea of using technology to revive(恢复) extinct species has long fascinated not only writers and directors, but scientists as well.
According to The Telegraph, woolly mammoths(长毛猛犸象), which featured in the popular Ice Age animated movie series, “may walk the earth once more” now that scientists have taken another step toward realizing a long-held dream—recreating their DNA.
Mammoths became extinct around 10,000 years ago. However, since the discovery of near-perfect preserved remains in Arctic permafrost(北极冻土带) in May 2013, a variety of research studies have been carried out since.
Geneticists from Harvard University analyzed DNA from the remains, looking for genes which separated mammoths from elephants, such as hairiness and ear size. They then used the results to reproduce exact copies of 14 mammoth genes. “It is the first time that mammoth genes have been alive—although so far it has only been done in the lab,” George Church, lead researcher of the project, told the Sunday Times.
Church then used a new technique which allows scientists to edit DNA carefully, replacing sections of elephant DNA with the mammoth genes. So “we now have functioning elephant cells with mammoth DNA in them,” he said.
However, Church ruled out the possibility of bringing the mammoths back to life via cloning from frozen remains. He said he “preferred to focus on rebuilding the full mammoth genome(基因组) by analyzing DNA from preserved remains and putting it into the cells of its closest living relative – the Asian elephant,” reported The Telegraph.
Church argued that the return of the woolly mammoth—or rather, the return of something very similar—could help bring back fragile(脆弱的) ecosystems. However, some scientists believe that bringing back the mammoth would be unethical.
Professor Alex Greenwood, an expert on ancient DNA, said: “We may face the extinction of African and Asian elephants. Why bring back another elephant from extinction when we cannot even keep the ones that are not extinct around?” he told the Sunday Times. “What is the message? We can be as irresponsible with the environment as we want. Then we’ll just clone things back?”
“Money would be better spent focusing on conserving what we do have than spending it on an animal that has been extinct for thousands of years,” he said.
1.We can learn from the article that ______.
A. cloned mammoths followed cloned dinosaurs to get revived
B. the technology to revive mammoth genes is already mature
C. George Church and his colleagues tried to reproduce mammoth DNA
D. Church and his team managed to list all the genes that separate mammoths from elephants
2.According to Church, what is the significance of his study?
A. It could help prevent the extinction of the Asian elephant.
B. It could help people better tell elephant DNA from mammoth genes.
C. It could help bring back some extinct species and save fragile ecosystems.
D. It could help bring mammoths back to life via cloning from frozen remains.
3.The underlined word “unethical” in Paragraph 7 is closest in meaning to ______.
A. unacceptable B. misled
C. impractical D. illegal
4.According to the article, Professor Alex Greenwood believes that _______.
A. there is no need to worry about the extinction of African and Asian elephants at present
B. it’s necessary to bring back species that are beneficial to human beings from extinction
C. the return of the woolly mammoth would help to balance ecosystems
D. it’s more important to protect present species than to bring back extinct ones
