英语选择性必修 第三册Grammar and usage教案设计

《英语》（选择性必修·第三册）

Unit 2 Out of this world

Grammar and usage

I. Learning objectives

By the end of the lesson, students will be able to:

1. master the form of subject causes;

2. understand the basic rules of subject clauses;

3. practice application of subject clauses;

4. write a short article using as many subject clauses as possible.

II. Key competence focus

1. Master the basic form of the grammar.

2. Understand and use subject clauses in writing.

III. Predicted area of difficulty

1. Apply the tips of subject clauses;

2. Use subject clauses in writing.

IV. Teaching procedures

T greets the class.

T: Class begins, boys and girls! Good morning/afternoon!

Step 1 Revising the usage of subject in a sentence

T: The most common subject can be expressed by nouns, pronouns, numerals, infinitives, gerunds, etc. For example:

1. The universe is entirely made up of different kinds of matter.

T: “The universe” is the noun as the subject.

2. To see is to believe.

T: “To see” is the infinitive as the subject.

3. Driving a car to Beijing took longer than I expected.

T: “Driving…” is the gerundial phrase as the subject.

【设计意图：理解主语从句首先理解主语，所以从做主语的成分入手，自然引出主语从句。】

Step 2 Exploring the rules of subject clauses

T asks Ss to go through the text in A P20 and asks students to pick out relevant sentences.

T: Open your books at page 20 and read through the text. And then find out the sentences with subject clauses.

T: When a sentence serves as a subject, it is a subject clause. Pick out the sentences with subject clauses in the text.

T asks students to underline the subject clauses.

Answers:

1. That Hubble is based in space allows it to see further than ground-based telescopes, and it allows scientists to learn more about the universe.

2. Whether life on other planets does exist is yet to be proved, but the signs are promising.

3. It is clear that telescopes are crucial tools for space exploration and that developing the required technology will help astronomers all over the world make exciting discoveries.

4. How much we will learn from the telescopes is merely limited by our imagination.

【设计意图：通过发现课文中的主语从句，让学生获得对主语从句的基本认识。】

Step 3 Working out the rules

T asks Students to work out the form of subject clauses.

 We can use a noun clause as the subject of a sentence.

 We can use (1)________ to introduce a subject clause when the clause is a statement. We can use (2)________ to introduce a subject clause when the clause is a yes-no question. We can use a question word to introduce a subject clause when the clause is a wh-question.

 We often use (3)________ as a preparatory subject when a subject clause is very long.

Answers: 1. that 2. whether 3. it

【设计意图：此节旨在通过课文中四个句子，让学生总结主语从句的结构和用法。】

Step 4 Applying the rules

1. Fill in the blanks with proper words (given).

1) ________ well the policy is working is going to be evaluated by some experts.

1) How

2) ________ is known to us all that the astronomer will come to our school.

2) It

3) ________ mosquitoes need most is blood from man and animals.

3) What

4) It still puzzles us ________ the astronaut didn’t accept the mission.

4) why/that

5) It is mysterious to scientists ________ the strange creature comes from.

5) where

6) So far, how the accident happened and who are to blame ________ (expose) by the mass media.

6) have been exposed

7) It was beyond the wildest imagination ________ they met in the circumstances.

7) that

8) It is unknown ________ he always bothers me with this kind of rubbish.

8) why

9) ________ she can have a day off depends on the administration.

9) Whether

10) It is still a problem facing us ________ we can find the financial aid to build the telescope.

10) where/how

2. B1 Each sentence below has a mistake. Circle the mistakes and correct them in the blanks.

Answers:

1 The space mission → That the space mission

2 depend → depends

3 was → is; will → would

4 What → That

5 That → What

3. B2 The passage below is about the Chinese Lunar Exploration Program. Complete the passage with the correct subject clauses in the box below.

Answers: 1 e 2 b 3 a 4 c

4. B3 Write down your prediction about the future, using as many subject clauses as possible.

T: Anything about the future prediction is acceptable, but I do hope you are optimistic about our future! You can finish it off after class.

【设计意图：本节是主语从句的运用，1是有关主语从句在单句中运用，编写中将本册前面学习的词汇植入到题干中并用斜体标示出来。2是主语从句在单句改错中的运用。3是主语从句在篇章中的运用。4是写作中运用主语从句】

V. Homework

1. To revise the usage of subject clauses, watch the micro video: Subject clauses (Optional)

2. Finish off writing B3.

Sample answer:

It is clear that many exciting things will happen in the development of space exploration in the future. I think manned space missions to Mars will happen in my lifetime and a permanent base on Mars will also be established. Hopefully, new energy sources will be developed, which will make space flight cheaper and faster.

But how soon and how far we advance in developing the required technology to do so depends on the collaboration between the many countries around the world. It is possible that the technology will be available before 2040 and I am looking forward to that.