高二英語上冊Units1-8同步優質教案
step 5 consolidation
t: look at the example on page 30. here are two sentences. they both have the same meaning but their adverbials are expressed in the different ways. study the example and then rewrite the sentences on page 31, using a clause to substitute the past participle phrase.
suggested answers:
1. when he was asked what had happened, he told us about it.
2. as he was well known for his expert advice, he received many invitations to give lectures,
3. if we were given more time, we would be able to do the work much better.
4. once it was translated into chinese, the book became very popular among chinese teenagers.
5. as she was deeply interested in medicine, she decided to become a doctor.
5. though she was left alone at home, sam did not feel afraid at all.
step 6 comparison
show two pictures. ask the students to make sentences using the present participle and past participle as adverbial.
a. when crossing the street, you must be careful.
b. followed by many students, the teacher came in.
t: well done, so far we have finished learning the present and past participle used as adverbial. let’s have a revision and make a comparison.
1.共同點: 現在分詞和過去分詞在句中不能單獨作謂語,但可作定語,表語,賓語補足語,狀語.
分詞作狀語時,其邏輯主語是句子的主語.如:
正確:looking from the top of the hill, we can see the whole town..
錯誤:being an orphan, the villagers take good care of the child.
正確:seen from the hill, our school looks more beautiful.
錯誤:seeing from the hill, our school looks more beautiful.
2.不同點: 現在分詞有時態和語態的變化;而過去分詞只有一種形式,現在分詞常表”主動”和 “進行”;過去分詞的一般式常表 “被動”和 “完成”.
式 語態 及物動詞make的主動語態 及物動詞make的被動語態
不及物動詞rise
現在分詞 一般式 making being made rising
完成式 having made having been made having risen
過去分詞 made risen
3.易混淆點:
a.分詞作伴隨狀語時,若表”正在被……” 的概念,常用過去分詞,而不用現在分詞的被動式.
followed by some officials, napoleon inspected his army.
b.現在分詞的完成被動式和過去分詞兩者都可表示 “完成”和 “被動”,但前者更加強調分詞動作明顯先于謂語動作;而后者的時間性不強.
having been told to stay in beijing, the boy decided not to return to his village.
homework
finish the word study and grammar part on the workbook.
record after teaching:
period 5 integrating skills
teaching aims:
1. learn to read poems aloud with expression.
2. learn to enjoy simple poems and interpret basic elements of poetry.