1、2014-2015 学年北师大版选修 8 Unit 23 Conflict 第 3 课时 作业.单词拼写1As a whole, the medicine seems to have been_(有效的).2She has a great f_ of a snake.3We must c_ the invader from our land.4_(对照) American English with Britain English, you can find some differences.5It t_ me to think of the consequence of your action
2、.答案：1.beneficial 2.fear 3.chase 4.Contrasting 5.terrified. 单选1 .Anyone be in a rough life time, whether he is “Bai Fumei” or “Gao Fushuai.”A. must B. will C. can D. should【解析】C 。句意：不管你是白富美还是高富帅，任何人都可能遭遇人生困难的时候。A 必须；B 将、会； C 能，会，可能；D 应该，竟然。2. Its a pity you were late, otherwise you the film star Rain
3、 from Korea.A. would have seen B. must have seenC. may have seen D. can have seen【解析】A。句意：很遗憾你迟到了，否则你就会见到从韩国来的电影明星金泰熙了。语境是过去时，otherwise 否则，但句中的“你”没有见到那位明星是客观事实，故此处是与过去事实相反的虚拟语气，故用“would + have + 过去分词”结构。【技巧点拨】注意分析蕴藏的条件，把握非真实条件句。3.-Do you think George has passed the driving test?-No. If so, he _ his
4、car to our college yesterday.A. would drive B. must have drivenC. would have driven D. had driven【解析】C 句意：你认为乔治通过驾照考试了吗？没有，如果这样的话，昨天他肯定开他的车来学校了。根据 No.可知没有通过驾照考试，表示对过去的虚拟，用 would have done，故选 C 项。4.The printer is of good quality. If it _ break down within the first year, we would repair it at our exp
5、ense.A. would B. should C. could D. might【解析】B 。打印机质量很好。如果第一年内它坏了，我们会免费维修。If 对将来时的虚拟 ，从句:If + 主语+ should (或 were) + 动词原形+主句:主语+ would (could, should, might) + 动词原形+。5.Since you have such good preparations, there _ be any problem about passing thecoming job interview.A. mustnt B. shant C. shouldnt D.
6、 neednt【解析】C 考查情态动词。句意：句意：你既然做了成分准备，参加为了的面试不应该有问题。A 项表禁止； B 项表将来；D 项表没必要。Shouldnt 不应该 ，故选 C 项。6.-Mum, I always feel everything is unfair to me.-Complaints in life _ no sense, for things will be what they should be.A. make B. have made C. will make D. are making【解析】A。题干中的含义是：生活中的抱怨没有意义。这是客观事实，故应用一般现在
7、时。故选 A。7.-Have you got any job offers?-No. I _. Hopefully, I will get one by the end of this month.A. waited B. had been waiting C. have waited D. am waiting【解析】D 句意：你收到工作邀请函了吗？没有，我正在等待，在这个月底很有希望能收到一份。根据下方提到 Hopefully, I will get one by the end of this month.可见作者正在等待，故选 D 项。8.The manager _ his worke
8、rs how to improve the program since 9 am.A. has told B. is telling C. has been telling D. will have told【解析】C 。句中出现 since 9 am 一直到现在，要用现在完成进行时。.句型训练用所给词的适当形式填空(1)I wish I _(see) you when I was badly in need of your help.(2)I wish I _(know) what is going to happen.(3)I wish I _(fly) like a bird.(4)Th
9、ey _ (leave) for the station when they heard a warning on the radio that all trains were delayed by the fog.答案： (1)had seen (2)knew (3)could fly (4)were leaving.话题写作先将下面几个句子翻译成英语，然后连成一段小短文。1克隆是利用来自单一“父母” 的 DNA 创造细胞或整个动物的过程。2在 1997 年，科学家成功地克隆了哺乳类动物。3一些科学家想用克隆动物的方法，来为人类制造人类使用的皮肤、器官与其他的身体构造。4克隆人类细胞有可能会
10、找到治愈疾病的疗法并消灭疾病。5但是克隆技术仍然处在初级阶段，还有很多科学家不明白的地方。6许多人担心克隆会对社会带来的影响。在许多国家中，法律禁止克隆人类。_答案：Cloning is the process of the creation of cells or whole animals using DNA from a single “parent”. Scientists successfully cloned the first mammal in 1997. Some scientists want to apply the methods used in cloning ani
11、mals to producing skin, organs and other body parts for humans. The cloning of human cells provides the potential to find cures and wipe out diseases. But the technology of cloning is still in its very early stages and there is much that scientists do not understand. Whats more, many people fear the effects cloning could have on our society. So in many countries, human cloning is banned by law.
