Making a difference（The Third Period）

5. he traveled around the world (7) to give lectures.
6. what does it mean (8)to be a scientist?
7. people who listen to hawking’s lectures sometimes find it difficult (9) to understand him.
8. (10)to explain what they have seen, they build a theory about how things happen and the causes and effects.
t: now group the infinitives according to how they are used. that is to say, tell the function of the underlined part in each sentence. you are given four minutes to prepare it. after that i’ll collect your answers.
suggested answers:
1. subject:（8）
2. attribute: (2) (3)
3. object: (1) (9)
4. adverbial: (4) (5) (6) (7) (10)
step iv practice
t: now let's do some exercises on. page 6. first look at ex. 2. rewrite the following sentences with “to be done”. look at the example on the blackboard.
  (bb: he wanted the nurses to take care of the patient. →he wanted the patient to be taken care of. )
t: because “the patient” is the logical object of “take care of”, the passive infinitive should be used in the second sentence. are you clear?
ss: yes.
t, now i give you three minutes to write your sentences in your books. after that, i'll  ask some of you to read out your sentences.
   (three minutes later, teacher checks their answers.)
 suggested answers:
 1. he didn't want himself to be helped.
 2. he asked his work to be paid for.
 3. she told me that nothing should be feared
 4. in our lives, there is so much to be learnt
 5. the car was reported to have been stolen
 t: do you have any questions about the answers?
(one student stands up.)
s: why is “to have been stolen” used in stead of “to he stolen” in the last answer?
t: a good question. that’s what i’ll explain to you. when the action expressed, by the infinitive happens before the predicate. the perfect infinitive should he used. here “to be stolen” happen   before “report”. are you clear?
ss: yes.
t: ok. look at ex. 3. rewrite the sentences using the infinitive. the example can help you. first do it by yourself. then discuss it in pairs. finally i’ll show you the answers.
(after the students finish it, teacher shows the answers on the screen.).
 suggested answers :
l. is there anything to eat?
2. i need a pen to write with.
3. do you have anything to add?
4. he is looking for a box to put the two rabbits in.
5. it would be a comfortable house to live in.
(as to the answers the students can’t understand, teacher can give some explanations.)
step v consolidation