2022-2023学年高中英语新教材译林版（2020）选择性必修3教案 2-U2L2 WELCOME TO THE UNIT AND READING II.doc

1、英语（选择性必修第三册）Unit 2 Out of this world Welcome to the unit & Reading (II) 合肥市第四十五中 张玉洁I. Learning objectivesBy 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;

2、4. Use word family to do some exercises;5. analyse some complex sentences from the text.II. Key competence focus1. Express oneself with core vocabulary.2. Grasp and apply the skill of word family.3. Understand the text precisely.III. Predicted area of difficulty1. How to use the core vocabulary in n

3、ew context; 2. How to understand some complex sentences in the text.IV. Teaching proceduresT greets the class.T: Class begins, boys and girls! Good morning/afternoon! Step 1 B2P19 Learning the word familyT: The lecture transcript uses many words created from the same root word. Together with the ext

4、ended 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.B2P19VerbsNounsAdjectivesAdverbsadventureadventureadventurousadventurouslydifferdifferencedifferentdifferentlydefinedefinitiondefi

5、nitedefinitelyrewardrewardrewardingrewardinglyremarkremarkremarkableremarkablyT: 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. differs2. For the more _ tourists, there are trips into the mountains with a local guide.2

6、. adventurous3. Generally speaking, giving is much _ than receiving in the long term.3. more rewarding4. _ of all words in this dictionary are printed in roman type.4. Definitions5. He concluded from their _ that they were not in favour of the plan5. remarks【设计意图：此项是本单元的一项重要学习策略：word family (word fo

7、rmation)，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 vocabularyT Present the core words and expressions and study them together with the students.1. absenceabsence: being awayabsentee: person who isnt presentabsence n. absent adj. absently adv. absentee n. absen

8、t-minded adj. absent-mindedly adv. absent-mindedness n. 2. occupyoccupy: 1) live in or have possession of 2) take up or fill 3) hold or fill (an official position)occupied adj.: in use; filledoccupation n.: 1) action of occupying or state of being occupied 2) job or employment occupy v. occupied adj

9、. occupation n. occupy oneself (in doing sth./with sth.); be occupied in doing sth. (with sth. )3. evaluateevaluate v. : find out or form an idea of the amount or value of (sb./sth.); assessinvaluable adj.: extremely valuablevalueless adj.: having no value, worthlessvalue v. evaluate v. evaluation n

10、. value v. valuable adj. invaluable adj., valueless adj. 4. maintenancemaintenance n. : 1) maintaining or being maintained 2) money that one is legally required to pay to support sb.maintain v. maintenance n. 5. exposureexposure n.:1) action of exposing or state of being exposed2) instance of exposi

11、ng or being exposed3) action of exposing a film to the lightexpose v. exposed adj. exposure n. ex- exit n.；exist v.；expose v.；explode v.；export v.；explore v.；expand v.6. visiblevisible adj.: that can be seen; in sightvisible adj. visibly adv. visibility n. visible adj. invisible adj. invisibly adv.

12、invisibility n. 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 impor

13、tant 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-minde

14、dness 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 Wehrmachts _ (occupy)

15、 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 f

16、amily”来学习核心词汇，一举两得。】Step 3 B1P19 Doing exercise B1 at page 19T: 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 sentencesT: Due to the length and

17、 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 lets try some sentences.1. Its strange that we try to sleep with no pressure against our

18、back, but the unusual beds dont 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, theres a “with + compound object”: with no pressur

19、e 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

20、 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” invert

21、ed. 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 doexercise”. “Considering” conduct

22、s an adverbial clause. 5. During our leisure time, theres 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 “theres nothing”. The part “to sit backa

23、nd 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。】Homework1. Watch the micro lesson: Word formation (Optional)2. Revise the core vocabulary and the complex sentences after class.