仁爱科普版九上英语Unit 4 Amazing Science Topic 1 When was it invented？ Section D 导学案

仁爱版九年级上册英语Unit4Topic1When was it invented？SectionD导学案
一.【学习目标】1.熟记本话题单词，复习主要短语。
2.阅读“where are we？”这篇文章，了解GPS的功能
3.总结并会运用复习一般现在时/一般将来时/含有情态动词的被动语态。能够理解其他形式的被动语态。如: 现在完成时的被动语态和情态动词的被动语态。
能够在听、说、读、写活动中正确地运用被动语态。
二. The key points and difficult points(重难点）
1. Key points:
Words and phrases: mark, explorer, system, man-made, find out, as long as, be used to do sth.
Sentences: This method worked well at night as long as the weather was good and the stars could be seen.
Today, the problem has been solved by the Global Positioning System.
It can also be used to study the shape of the earth.
Grammar: was/were +pp
2. Difficult points：
The GPS is a great invention that helps us explore our planet and discover where we are.
三．教学设计；
先让学生欣赏音乐调动学生情绪，再出示目标让学生明确。因为本节是一节复习阅读课所以先让学生复习单词和语法，再通过习题进行检查，并重点强调加强印象。再让学生根据自学要求自学阅读片段，并完成相应的任务（任务型阅读），之后使学生在小组内讨论解决疑难，解决不了的由学生提出教师讲解，点拨。最后，让学生再回到课文，进行阅读，比赛那些学生读的熟练。最后进行习题巩固训练和检测。加深学生印象
四．教学过程；
Step1. Lead in
1.Let students enioy an English song ,review the words and grammar.
2.Look at the pictures and answer the questions and lead in the new lesson.
Step2 .Presentation.
1.Read the passage and find out the answers to the question on page 88.
2.Read again and find out the phrases .
1.查明；找出 2.奏效，起作用
3.其它/于时间
4.人造的
5.在任何时候
6.只要
7.可以被使用
3.find out the sentences with passive voice(被动语态）（重点点拨）
1.The stars could be seen.
2.It can be used to study the shape of the earth.
仔细观察，两个句子的构成；
情态动词的被动语态构成：
情态动词+be+动词的过去分词
4.Listen and read after the tape.
5.根据首字母提示，完成短文。
5． Thanks to GPS, we can know w _____we are now. GPS is like a man-made “star”. It can be u____ in any place and any weather condition to find out our p________. In the past, the early explorers had to use stars in the s____ to tell them where they were, however, this method didn’t work well when the weather was bad. So GPS is a great invention that can help humans to better e________ our planets.
6．当堂训练。
(A) 根据课文填空。Thanks to GPS, we can know w _____we are now. GPS is like a man-made “star”. It can be u____ in any place and any weather condition to find out our p________. In the past, the early explorers had to use stars in the s____ to tell them where they were, however, this method didn’t work well when the weather was bad. So GPS is a great invention that can help humans to better e________ our planets.
(B) 单选。
（ ）1.Hurry up, you ____ on the phone.
A. Wanted B. was wanted C. are wanted
( ) 2. Some stories _____the children by the teacher everyday.
A. is told for B. are told for C. are told to
( ) 3._____that he has studied abroad for five years.
A. It is said B. It says C. That is
( ) 4. The window ____ five minutes ago.
A. is cleaned B. was cleaned C. can be cleaned
( ) 5. The children ______by the teachers at school.
A. take care of B. are taken care
C. are taken care of
( ) 6. A big supermarket _____in our city last year.
A. is built B. were built C. was built
( ) 7.Could you tell me who the radio ____ by
A. invents B. invented C. was invented
( ) 8. Many trees and flowers _____ in our school last year.
They made our school more beautiful.
A. have planted B. were planted C. planted
( ) 9.The children ____ swim last month and they can swim
very well now.
A. are taught B. were taught C. were taught to
( ) 10.It is said that potato chips _____by mistake about one
hundred years ago.
A. were invented B. invented C. are invented
( ) 11. I have no idea what ______while I was asleep.
A. happened B. was happened C. happens
( ) 12. In some countries, tea _____before meals.
A. is serving B. is served C. served
( ) 13. This kind of books ______well.
A. doesn’t sell B. isn’t selling C. aren’t sold.
( ) 14. I ______ten minutes to decide which sentence was
right by the teacher.
A. gave B. was given C. was giving
( ) 15. Teachers ______in every part of the world.
A. are needing B. are needed C. will need
六．总结本节内容。
We Learn:
1. Some words : mark, explorer
2. Some phrases: find out, in , direction, as long as, work well, the rest of the time, be used to, the shape of
3. Some sentences:
This method worked well at night as long as the weather was good and the stars could be seen.