高中英语Welcome to the unit教学设计

《英语》（选择性必修·第三册）

Unit 2 Out of this world

Welcome to the unit & Reading (II)

I. Learning objectives

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

1. master the following core vocabulary: absence, occupy, evaluate, maintenance, exposure, visible.

2. use the core vocabulary in new contexts;

4. Use word family to do some exercises;

5. analyse some complex sentences from the text.

II. Key competence focus

1. Express oneself with core vocabulary.

2. Grasp and apply the skill of word family.

3. Understand the text precisely.

III. Predicted area of difficulty

1. How to use the core vocabulary in new context;

2. How to understand some complex sentences in the text.

IV. Teaching procedures

T greets the class.

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

Step 1 B2P19 Learning the word family

T: The lecture transcript uses many words created from the same root word. Together with the extended words, they can be classified into one family. The most common ways of making new words are compounding and affixation. Try to use affixation to fill in the tables.

B2P19

T: Fill in the blanks with proper forms of the above words.

1. Health education wisdom in the UK ________ from that of the United States.

1. differs

2. For the more ________ tourists, there are trips into the mountains with a local guide.

2. adventurous

3. Generally speaking, giving is much ________ than receiving in the long term.

3. more rewarding

4. ________ of all words in this dictionary are printed in roman type.

4. Definitions

5. He concluded from their ________ that they were not in favour of the plan

5. remarks

【设计意图：此项是本单元的一项重要学习策略：word family (word formation)，此处只对基本知识中affixation提示、运用和练习，较为复杂的讲解在本单元的微课Word formation中呈现。】

Step 2 Building core vocabulary

T Present the core words and expressions and study them together with the students.

1. absence

2. occupy

3. evaluate

4. maintenance

5. exposure

6. visible

T: Fill in the blanks with proper forms of the given words.

1. They took in poor-graded students and graduated them on lower marks, so the degree became ________ (value).

1. valueless

2. The weather was at its worst with heavy fog that gave minimum ________ (visible).

2. visibility

3. The most important thing to be happy for the old is to keep them ________ (occupy).

3. occupied

4. Only by keeping down costs will America ________ (maintenance) its competitive advantage over other countries

4. maintain

5. His ________ (absent-minded) during the experimenting nearly caused an explosion of the chemical.

5. absent-mindedness

6. We need to have a proper ________ (evaluate) of the new system before it is carried out.

6. evaluation

7. Strangely enough, patterns that are ________ (visible) on the ground can be the most striking part of an aerial photograph.

7. invisible

8. Prii became fluent in German during the Wehrmacht’s ________ (occupy) of Estonia in 1942.

8. occupation

9. He stared ________ (absent) into the darkness outside the train window, a glowing cigarette between his fingers.

9. absently

10. We are ________ (exposure) to an overwhelming number of chemical contaminants every day in our air, water and food.

10. exposed

【设计意图：结合B2一项词汇技能“word family”来学习核心词汇，一举两得。】

Step 3 B1P19 Doing exercise B1 at page 19

T: Finish exercise B1 within five minutes.

B1P19

Answers: 1. missions 2. evaluate 3. of vital importance 4. cast new light on 5. visible 6. circumstances 7. absence 8. bothers

Step 4 Understand the complex sentences

T: Due to the length and complex grammatical structure, some sentences in the text are hard to cope with. However, if you can find out the main body of the sentence, it will be much easier for you to understand the whole sentence. Now let’s try some sentences.

1. It’s strange that we try to sleep with no pressure against our back, but the unusual beds don’t bother us any more. (Para. 2)

1. This sentence includes two compound sentences connected by “but”. In the first compound sentence, “it” is the preparatory subject and “that” leads to the actual subject clause. Besides, there’s a “with + compound object”: with no pressure against our back.

2. With so much going on, the space station needs a lot of maintenance, so we constantly check support systems and do some cleaning. (Para. 3)

2. This sentence includes two compound sentences connected by “so”, expressing “cause and effect”. In the first compound sentence, there is a “with + compound object”: With so much going on.

3. Splendid as the view of the Earth is, spacewalking is not as exciting as you might think. (Para. 4)

3. The main body of the sentence is “spacewalking is not as exciting”. The first “as” conducts a concessive adverbial clause with “splendid” inverted. The third “as” conducts an adverbial clause.

4. Considering these negative effects low gravity has on the human body, we discipline ourselves to do at least two hours of exercise every day. (Para. 6)

4. The main body of the sentence is “…we discipline ourselves to do…exercise”. “Considering” conducts an adverbial clause.

5. During our leisure time, there’s nothing we like more than to sit back with the rest of the crew and watch our remarkable planet go by, taking pictures for our family and friends back home. (Para. 7)

5. The main body of the sentence is “…there’s nothing…”. The part “to sit back…and watch…” is the infinitives as attribute modifying “nothing”. The part “taking picture…” is present participle as adverbial modifying verbs “sit” and “watch”.

【设计意图：影响阅读质量还有长句，长句语法结构复杂，但抽出句子主干，句子就容易理解了，此节指在提高学生阅读长句的技能，也有助于深度理解课文。】

Homework

1. Watch the micro lesson: Word formation (Optional)

2. Revise the core vocabulary and the complex sentences after class.