内容正文:
新概念英语二 Lesson 61 Trouble with the Hubble 教学目标: 1. 掌握launch、space、astronaut、grab、atmosphere、distant、put sth. right、be trouble with等重点词汇及短语。 2. 掌握该课重点句型及结构: (1)定语从句 (2)将来完成时、将来进行时和将来完成进行时三者的比较 3. 能够独立完成课后练习。 4. 熟悉背诵文章,并能够学以致用 课文回顾: The Hubble t_ was l_ into space by NASA on April 20, 1990 _ (造价为) over a billion dollars. Right from the start there was trouble with the Hubble. The pictures it sent us were very d_ because its main mirror was faulty! NASA is now going to put the telescope right, so it will soon be sending up four astronauts to repair it. The shuttle E_ will be taking the astronauts to the Hubble. A robot-arm from the Endeavour will g_ the telescope and hold it while the astronauts make the necessary repairs. Of course, the Hubble is above the earth's a_, so it will soon be sending us the clearest pictures of the stars and distant g_ that we have ever seen. The Hubble will tell us a great deal about the age and size of the u_. By the time you read this, the Rubble's eagle eye will have sent us thousands and thousands of wonderful pictures. Part I There are four choices marked [A] [B] [C] and [D] for each sentence below. Choose the one that best completes the sentence. 从[A]、[B]、[C]、[D]四个选项中,选出可以填入空白处的最佳选项。 1. By the time Jane gets home, her aunt _ for London to attend a meeting. A. will leave B. leaves C. will have left D. Left 2. By the end of this month, we surely _ a satisfactory solution to the problem. A. have found B. will be finding C. will have found D. are finding 3. It _ long before we _ the result of the experiment. A. will not be, will know B. is, will know C. will not be, know D. is, know 4. -Did you tell Julia about the result? -Oh, no I forgot. I _ her now. A. will be calling B. will call C. call D. am to call 5. This time tomorrow you _ there doing some more exercises. A. will sit B. will be sitting C. sit D. shall sit 6. I won't be able to watch the concert on TV because I _ homework at that time. A. shall have done B. shall be doing C. sh