高中英语人教版高二下讲解04

[18:41.05]On Average she received 5 letters each day.
[18:49.51]The average age of students in Senior II is seventeen.
[19:05.99]The average temperature in Wuhan during August can reach39C.
[19:21.56]Which living things in the oceans are mentioned on the text?
[19:46.51]Different types of whales,small fish squid.
[19:53.67]1)How do fish manage to live in the seas near Antarctica?
[20:16.71]Their blood contains a particular chemical
[20:26.14]to help them live in below zero sea temperatures.
[20:33.89]2)What is the difference between the sperm whale and other whales?
[20:43.45]The sperm whale has teeth.
[20:55.52]3)What do other whales eat?
[21:01.69]Small fish.
[21:07.57]4)What do sperm whales eat?
[21:13.42]Squid.
[21:20.18]5)How deep can a pserm whale dive?
[21:28.65]It can dive to 1000 metres
[21:34.81](but on one occasion it was recorded at a depth of 2250 metres.
[21:45.16]6)What body change occur when the sperm whale dives?
[21:55.32]Its heart slows to half its normal speed,
[22:02.27]and the oil in its head is probably cooled at the same time.
[22:09.53]7)How does the sperm whale find its food?
[22:17.29]By using sound waves in the dark.
[22:27.87]Language points
[22:36.93]1)These fish swim together,
[22:42.99]often in a group that may be 4.5 metres thick and hundreds of metres long.
[22:51.25]There may be 63000 fish per cubic metre.
[23:11.31]2)A whale may eat a ton of them at a time,
[23:18.57]and may enjoy four meals a day.
[23:29.93]at a time:
[23:36.46]Do one thing at a time.
[23:42.21]3)It cab grow to a length of 15 metres.
[23:56.37]strong  strength
[24:11.52]deep   depth
[24:15.46]wide  width
[24:20.64]4)It(the squid)is eatch by a type of whale called the sperm whale,
[24:29.39]which is over 18 metres long.
[24:57.05]5)The sperm whale does not feed on small fish like other whales.
[25:07.63]feed on
[25:29.78]Sheep feed on grass.
[25:34.93]6)When it dives,its heart slow to half its normal speed.
[25:57.60]Slow down before you reach the crossroads.
[26:07.27]The train slowed its speed as it came near to the station.
[26:27.83]The head contains a lot of oil,and this is probably cooled at the same time.
[26:43.58]Please warm this milk.
[26:49.51]The rain has cooled the air.
[26:58.57]7)The sperm whale therefore has to look for the squid using sound waves.
[27:31.93]They crossed the river using small boats.
[27:42.98]1)(I)Haven't seen you for a long time.
[28:32.46](Do you)Want anything else?
[28:38.20]2)(Have you)read any good books recently?
[28:51.66](Does)anybody know her address?
[28:58.71]3)Where's Tom?
[29:04.17]I don't know(where he is).
[29:10.54]4)(I am) Sorry.
[29:24.10](Are you)tired?
[29:27.76]5)Would you like to go shopping?I'd love to (go shopping).
[29:39.23]Mary didn't come,though we had invited her to(come).