Unit 4 Astronomy: the science of the stars(Period 3 Learning about language: Grammar)
1. ask students to turn to page 92 and learn part 3 the subject clause by themselves.
2. encourage them to ask as many questions as possible. give them explanations if necessary.
3. let them do some additional exercises.
4. sum up.
→step 5 practice
ask students to finish the following exercises within 10 minutes. then check the answers with the whole class.
1. exercises 2 and 3 in discovering useful structures on page 13.
2. exercise 1 in using structures on page 64.
→step 6 consolidation
let students work in pairs to make sentences with noun clauses as the subject to fill in the blanks.
1. what _____________________________is astronomy.
2. when _____________________________hasn’t been decoded yet.
3. whether _____________________________depends on your behavior.
4. how _____________________________ is a personal decision.
5. why _____________________________ a puzzle to us.
6. it’s funny that _____________________________.
7. it worries us that _____________________________.
8. it appears that _____________________________ .
→step 7 homework
1. finish off the workbook exercises.
2. make use of different learning resources to have an inquiry study of the subject clause, and summarize the rules of it.
板書設計
unit 4 astronomy: the science of the stars
grammar: noun clauses as the subject
連接詞 例句
從屬連詞: that, whether that she left him cut him to the heart.
whether it will please them is not easy to say.
連接代詞: who, what, which, whoever, whatever, whichever what seems easy to some people seems difficult to others.
連接副詞: when, where, how, why why he did it remains a mystery.
it作形式主語
it+be+表語+主語從句 it is still uncertain whether he is coming or not.
it+不及物動詞+主語從句 it happens that they were absent.
it+及物動詞（被動語態）+主語從句 it has been decided that the exhibition will not open on sundays.
活動與探究
suppose you are to design an activity for your school on earth day, which is intended to call on teachers and students to protect the earth. work in groups and choose a reporter of your group to report your work. the following points should be included in the report of your activity:
what the activity is about;
why the activity is designed;
when and where to do the activity;
who takes part in the activity;
what to be done in the activity.