【正文】 to pass may allow more than ten bicycles to run side by side.a. While taking part in sports, people can strengthen their muscles, quicken their speed of response and increase their ability of resisting diseases.b. Being active in sports, people can strengthen their muscles, increase their response speed and build up their ability to resist diseases.a. Social science and natural science are mixed with each other today.b. Social science and natural science are inseparable from each other today.a. Being a teacher needs knowledge, patience, skills, etc.b. Being a teacher requires knowledge, patience, skills, etc.a. In conclusion, most students still don’t know how to spare the time and make it valuable.b. In conclusion, most students still don’t know how to use the twoday weekend to their best advantage.a. Whether you will apply English or not in the future, English has undoubtedly been the most important language in our society.b. Whether you will use English or not in the future, English has undoubtedly been one of the most important languages in our society.a. It will help me to know the world outside the campus better.b. It will help me to experience the world outside the campus better.一致性，平行a. It not only relieves the burden on the big city, but also provide a much better environment for people to live in.b. It not only relieves the burden on the big city, but also provides a much better environment for people to live in.a. Due to the pollution, we will have no pure water, fresh air which are necessary to our lives.b. Due to the pollution, we will have no pure water and fresh air which are necessary to our lives.a. A great deal of new subjects, which are actually derived from both natural and social science, has e into existence and enrich the sea of human knowledge greatly.b. A great number of new subjects, which are actually derived from both natural and social science, has e into existence and enriched the sea of human knowledge greatly.Phrasal Verbs 短語動詞a. And new ways can be carried out to prevent the pollution and control the population.b. And new ways can be worked out to prevent the pollution and control the population.a. When a motorcycle is started, it gives away a lot of smoke which contains poisonous chemical substances harmful to our health.b. When a motorcycle is started, it gives off a lot of smoke which contains poisonous chemical substances harmful to our health.a. In fact, no one can be denied of the access to opportunity.b. In fact, no one can be denied access to opportunity.a. To grasp a foreign language is not easy, but I will go out of my way to gain success——for my ideal job.b. To master a foreign language is not easy and to be a qualified interpreter is even harder, but I will go all out to gain success——in my ideal job.a. Taking into account of their behavior, we can safely e to the conclusion that these students will waste too much time if they don’t make good use of it.b. Taking into account their behavior, we think it is clear that these students will waste too much time if they don’t study hard on working days.助動詞，情態(tài)動詞a. To master almost every skill, you can’t but practice.b. To master almost every skill, you must practice.a. We cannot strain our efforts and ignore the rules.b. We mustn’t strain our efforts and ignore the rules.a. Do “l(fā)ucky numbers” really bring good luck?b. Can “l(fā)ucky numbers” bring good luck to us?H. Connectives 連接詞用詞不當/用法不當a. The sun had just risen, shining brilliantly, everything seemed to be covered with a layer of golden silk.b. The sun had just risen, shining brilliantly and everything seemed to be covered with a layer of golden silk.a. When I walked in the street, there were only some young men who were running in the street.b. While I was walking, I found that there were only some young men running in the street.a. Because a bicycle is not expensive, most families can afford it.b. Since a bicycle is not expensive, most families can afford it.a. So long as I am concerned, I am for the latter.b. As far as I am concerned, I am for the latter.a. And I should get practical experience as much as theories.b. And I should get practical experience while learning the theories.a. No matter they are accepted or not, the interview is a good occasion for them to practice their ability of introducing themselves to others.b. No matter whether they are accepted or not, the interview is a good occasion for them to practice their ability of packaging and selling themselves.a. In my opinion, although setting off firecrackers is one of the traditions that we Chinese have.b. In my opinion, setting off firecrackers is one of the traditions that we Chinese have.a. The first, we have more spare time. ... The second, we have enough time to do something which we like.b. First, we have more spare time. ... Second, we have enough time to do something we like.a. So far as I am concerned, I managed to find a partti