1. Book2B
Unit 16 lesson 63

2. The life in the ocean

3. Comprehension exercise 1
1.Many whales mainly live on ___.
A. seaweed B. small fish C. squid D. coral
2.Fish in the oceans around Antarctica can live below zero because ____.
A.they stay at the bottom of the ocean.
They are warm -blooded animals.
They have a special chemical in their blood.
They swim in a large group.

4. 3. The sperm whale has a very good _____.
A. sense of hearing B. sense of sight
C. sense of touch D. sense of smell
4. Whales ____.
A.live on small fish in the ocean
B.can eat many fish at a time
C.can dive to a depth of 1000 metres
D.can see the liquid at the bottom of the ocean

5. Comprehension exercise 2
1.How do fish manage to live in the seas near Antarctica?
2.What is the difference between the sperm whale and other whales?
What do other whales eat?
4. What do sperm whales eat?
5. How deep can a sperm whale dive?
6. What body changes occur when the sperm whale dives?
7. How does the sperm whale find its food?

6. Language points: 1.provide and supply 语意相同 ，结构相似
supply sb. Sth Supply sth. To sb.
Provide sb. With sth. Provide sth. For sb.
Provide for sth.
eg. We should provide for the shortage of energy in the future.
Parents must provide / supply their children with food and clothes.

7. 2.at a time
eg. Take two pills at a time.
He talked for two hours without stopping at a time.
3.feed on = live on 以。。。为生
eg. Most of the Chinese people feed on rice.
Feed vt.
Feed + object + on
Feed + object + to
The girl is feeding her cat on milk
Eg. The girls were feeding the leaves to silkworms.

8. 4.slow adj.--- v. = to become or make slower
eg. Slow down before you reach the crossroads.
The train slowed down when it came near to the station.
The thick snow slowed our progress.
Please warm the milk.
The rain has cooled the air.

9. 7.using sound waves = by means of sound waves
eg. They crossed the river using small boats.
George forced the door open , using all his strength.
They had to work slowly by using old typy of ploughs.

10. Ellipsis 省略 一个句子中有时会有一个或更多的成分被省略掉，此种句子被称为省略句。
省略句中的某个句子成分的目的是为了避免重复，而使句子更简洁。省略句中被省略的常有：
1．主语
( I ) Haven’t seen you for a long time.
( It ) Doesn’t matter?
( Do you ) Want anything else?

11. 2．谓语或谓语的一部分（包括助动词，情态动词）
( Are ) You ready?
( Have you ) Seen any good films recently?
( Is ) Anything wrong?
( Does ) Anybody know Mary’s address?
3.省略宾语
Where is Tom? I don’t know ( where he is ).
Which of the two dictionaries is better? It’s hard to tell ( it ).

12. 4.省略主语和谓语（或谓语的一部分）, 只剩下宾语，表语，状语等其它句子成分。
( I am ) Sorry.
( Are you ) Tired?
( I am ) Sorry. (You’ve got ) Wrong number.
5.不定式TO 后省略动词
Would you like to go to the theatre? I’d love to.
He didn’t come to our party, though we had invited him to .

13. See you next time!