Unit 4 Discovering Useful Structures 学案--高中英语人教版（2019）必修第三册.docx

《Unit 4 Discovering Useful Structures 学案--高中英语人教版（2019）必修第三册.docx》由会员分享，可在线阅读，更多相关《Unit 4 Discovering Useful Structures 学案--高中英语人教版（2019）必修第三册.docx（4页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、英语 学案学习内容Infinitives as the attributive and adverbial学习目标1. To study infinitives as the attributive and adverbial2. To use infinitives as the attributive and adverbial重点、难点To use infinitives as the attributive and adverbial学习过程随堂感悟Step 1 Lead inWhat are the functions of the underlined part?1. I trai

2、ned for a long time to fly airplanes as a fighter pilot.2. As we all know, an astronaut needs to be healthy and calm in order to work in space.3. First of all, you must be intelligent enough to get a related college degree. 4. Some scientists were determined to help humans realize their dream to exp

3、lore space. 5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space. Step 2 Presentation一、不定式的定义不定式是动词的一种非限定形式,由“_”构成，没有人称和数的变化，在句中不能独立作谓语。二、 不定式在句中的功能作定语1. I have a lot of work to do.2. She is the first student to come to school.3. There is nothing to worry about. 不定

4、式作定语，一般放在被修饰的_、_后面。只能用动词不定式做定语的情况1） 当修饰的名词是_（一些表示企图、努力、愿望、打算、能力等意义的名词）1. Please make an effort to catch the bus.2. He made a promise to come here on time tomorrow.2）当修饰的名词前有_, 以及由序数词或形容词最高级修饰的名词常常用不定式作定语。1. He was the first one to think of the idea.2. You are the only person to be late.3. The manage

5、r is the last to come to the meeting.3）当修饰的词为_等不定代词时。1. Do you have anything to say?2. There is nothing to worry about.3. I want to get something to drink.4）当定语表示未来的_的动作时。1. The letter to be written is to my father.2. The matter to be discussed is important.作状语不定式作状语，用来修饰_、_和_。1) 目的状语：可用在句首常用结构：_1.

6、I come here to say good-bye to you.2. So as not to disturb the baby, I walked quietly. 不定式作目的状语时， 其动作通常迟于谓语动词的动作。I said that to encourage him.2) 原因状语：多用于“_”句型中。1. Im glad to see you.2. She was disappointed to hear the news. 3. 结果状语：常与_句型中。1. He studied hard only to fail the exam.2. He is old enough

7、to go to school.3. She is so proud as to look down upon others.现在分词与不定式作结果状语的区别动词不定式作结果状语强调的是一种_；而现在分词作结果状语强调的是一种_结果。1. He went home to find his old friend George outside the door.2. The child fell, striking his head against the door and cutting it.Step 3 Consolidation1. Try to complete the sentence

8、s with infinitives as the attribute and the adverbial.1.要正确地画地图，你需要一支特制的笔。_, you need a spacial pen.2.他来晚了，发现其他人都回家了。He arrived late _.3.他总是第一个到办公室，最后一个离开。He is always _ and the last one to leave the office. 4.有足够的食物供客人享用。2. Complete the passage with the correct forms of the verbs in brackets.There

9、is enough food for the guests _.Sending people to other planets or even beyond the solar system is not an easy goal_ (achieve). One of the problems is that the trip would take a very long time. For example, _ (use) current technology, it would take over two years _ (get) to the closest planet, Mars,

10、 and back. Although light is the fastest thing_ (know)in the universe, it could take more than four years to reach the nearest star system. Will scientists figure out a way _ (store) sufficient food and water for the long journey? Is it possible to travel faster than light? No one knows the answers

11、yet. However, space scientists never give up. They are experimenting with growing crops in space so as _ (help) astronauts get enough food on longer journeys through space.Homework: 同步训练 课时跟踪检测（三）There is enough food for the guests _.Sending people to other planets or even beyond the solar system is

12、 not an easy goal_ (achieve). One of the problems is that the trip would take a very long time. For example, _ (use) current technology, it would take over two years _ (get) to the closest planet, Mars, and back. Although light is the fastest thing_ (know)in the universe, it could take more than fou

13、r years to reach the nearest star system. Will scientists figure out a way _ (store) sufficient food and water for the long journey? Is it possible to travel faster than light? No one knows the answers yet. However, space scientists never give up. They are experimenting with growing crops in space so as _ (help) astronauts get enough food on longer journeys through space.Homework: 同步训练 课时跟踪检测（三）学科网（北京）股份有限公司