【正文】 space and brought back to the earth. The seeds are affected by the radiation（輻射）and low gravity in space. When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. However, some people worry about eating space vegetables. They think that space vegetables might not be good for us and could make us get sick because of the radiation in space. However, people should not be frightened because space vegetables are very healthy. Here are some facts that you should know about space vegetables.Space vegetables are grown from seeds that are carefully chosen. When seeds are brought back from space they are tested to make sure that they will be safe to eat. Space vegetables are better for you than normal vegetables. For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes。 After genetically modified （轉(zhuǎn)基因）food appeared in the market, people worried that they were eating unknown things. For example, if nut genes（堅(jiān)果基因） are put inside potatoes, people allergic（過敏的） to nuts might get sick from eating these potatoes because they do not know they are also eating nuts. Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables. Therefore, there are no dangers of eating unknown.（1）According to Paragraph One, how are the space vegetables? A.More delicious.B.Healthier and bigger.C.More dangerous.D.Cheaper and healthier.（2）According to Paragraph 4, how long can normal tomatoes stay fresh? A.For seven day.B.For twenty days.C.For thirteen days.D.For twentyseven days.（3）What39。s the difference between space vegetables and genetically modified food? A.Space vegetables have no new genes.B.Space vegetables are grown in space.C.Space vegetables have nothing unknown.D.Space vegetables are genetically changed.（4）What does the writer want to tell us? A.The seeds of space vegetables are taken to space.B.Everybody worries about eating space vegetables.C.Space vegetables are safe and good for people to eat.D.Space vegetables bring us illness because of the radiation.【答案】 （1）B（2）B（3）A（4）C 【解析】【分析】大意：本文講述本文主要講述太空蔬菜安全且對(duì)人有益，由受到輻射和較低的引力的種子培育出來太空蔬菜體型大且比普通的蔬菜更健康。（1）細(xì)節(jié)題。根據(jù)these seeds produce vegetables that are bigger and healthier than normal ，太空蔬菜更健康且更大，故選B。（2）細(xì)節(jié)題。根據(jù)space tomatoes stay fresh for twenty days, which is one week longer than normal ，太空蔬菜能保鮮20天，故選B。（3）細(xì)節(jié)題。根據(jù)This means that no new genes are put into the ，太空蔬菜沒有新的基因，故選A。（4）主旨題。本文主要講述太空蔬菜安全且對(duì)人有益，故選C。【點(diǎn)評(píng)】考查閱讀理解能力，細(xì)節(jié)題主旨題是閱讀理解題中常考題型。細(xì)節(jié)題要從文中尋找答案；主旨題需要通讀全文，了解大意之后找出中心思想。10．閱讀短文，從下面每小題的A、B、C、D四個(gè)選項(xiàng)中選出最佳選項(xiàng)。 Mike Myers is a teacher at Chauncey Rose High School in Terre Haute, Indiana. Last year, he taught his students about the world39。s rain forests. They learned that rain forests are important because the plants and animals of the rain forests give us food, wood and medicine. Destruction of the world39。s rain forests is a severe problem. As part of a class project, Myers39。 students bought three acres （英畝） of rain forest in Central America. They paid $25 for each acre. The students hope that the land they bought will be protected and not destroyed. Last June, Myers and four of his students took a boat ride down a river. They saw alligators and crocodiles. In the middle of the week, a guide took Myers and his students into the rain forest. The monkeys were not happy that we were in their forest. They broke small branches off the trees and threw them at us, one of the students said. It was a great journey of exploring nature for all of us, said Myers. Each student close something special about Costa Rica to study involving the plants animals, food, and culture. During the last few days the group had time to do fun activation. They went whitewater rafting and horseback riding, and visited Costa Rica39。s active volcano. Myers hopes to make the trip every year with a different group of kids.（1）How much did Myers39。 students pay for the rain forest they bought? A.$ 25B.$ 50C.$ 75D.$ 100（2）The underlined word Destruction39。 in paragraph 2 probably means the process of being ________. A.destroyedB.developedC.describedD.discovered（3）What did Myers and his students do at the beginning of their trip? A.They caught some monkeys.B.They took a boat ride down a river.C.They studied some plants and animals.D.They followed their guide to the rain forest.（4）The passage mainly shows that Myers and his students ________. A.went to the rain forest for fun activitiesB.did something to protect the rain forestC.wanted to buy the rain forest in Costa RicaD.were interested in the culture of Costa Rica【答案】 （1）C（2）A（3）B（4）B 【解析】【分析】主要講了Myers和學(xué)生們做一些事情來保護(hù)熱帶雨林。 （1）細(xì)節(jié)題。根據(jù)Myers39。 students bought three acres （英畝） of rain forest in Central America. They paid $25 for each ，每英畝25美元，所以一共75美元，故選C。 （2）細(xì)節(jié)題。根據(jù)常識(shí)可知熱帶雨林的破壞是一個(gè)嚴(yán)重的問題，所以destruction意思是被破壞的過程，即destoryed破壞，故選A。 （3）細(xì)節(jié)題。根據(jù)Last June, Myers and four of his students took a boat ride down a ，故選B。 （4）細(xì)節(jié)題。根據(jù)全文可知主要講了Myers和學(xué)生們做一些事情來保護(hù)熱帶雨林。故選B。 【點(diǎn)評(píng)】考查閱讀理解，主要考查細(xì)節(jié)題，注意從文中仔細(xì)尋找答案。11．閱讀短文，從下面每小題的A、B、C、D四個(gè)選項(xiàng)中選出最佳選項(xiàng)。 If you look at the top of your phone, you39。ll usually see a little symbol that says 3G or G stands for the generation （代） of your mobile phone network. But these symbols will bee things of the past after 5G networks fully arrive. On March 30, Shanghai vicemayor Wu Qing made the first 5G video call on a Huawei Mate X smartphone, CGTN reported. Shanghai has also bee the first city in China to start testing 5G networks. About 100 times faster than 4G networks, 5G will let people download and upload data faster than ever before. But 5G won39。t just bring faster mobile Internet. People can use it to do many other things as well. For example, 5G will help to make selfdriving cars safer. Today39。s selfdriving test cars have one problemlag （延遲）. When the car sees an obstacle （障礙物）, it sends he information to a data center and receives instructions. However, it takes time to send and receive the information with this kind of lag,