1、Unit14 ZoologyDiscussion Discussion How do people communicate with each other?How about animals?spoken language written languagefacial expressions hand gesturesposture body languagesounds smellmovements touch with each otherfacial expressions body language postureKarl von Frisch(1886-1982)The Austri
2、an zoologist Karl von Frisch contributed greatly to early studies of animal behaviors with his research on direction finding and communication among bees.He found that bees can infer the direction of the sun from polarized light and they use special“waggle”dances to inform other members of the hive
3、of the direction and distanced of a food source.He shared the 1973 Nobel Prize for physiology or medicine.ReadingPara.1 Q:Why is it the honey-bee that has interested scientists most?Because of the language they use to communicate with each other.ReadingPara.2 Q:What was Prof.von Frisch puzzled by?Wh
4、en he placed little dishes of honey on a table,bees soon came.As soon as one bee discovered the honey,many more came to it one after another in a short time.Read Para 2-3,then fill the form blow:Problems Experiments Results Conclusion How did one bee commu-nicate the news of food to others?Pro.Von F
5、risch built a transpar-ent wall painted some bees with little dots of colour.The marked bee performed a circle dance,and the surrounding bees copied it and left for the feeding place together.The circle dance communi-cated the news of food.Problems Experiments Results Conclusion Did the dance convey
6、 more informa-tion?Professor von Frisch set up two feeding places,one close to the hive,the other much farther away,and marked the bees with two colors.Bees from nearby feeding place did circling dance,while bees from the distant one did a wagging dance.The two dances told the bees about the locatio
7、n of the feeding place.Para.4Problems Experiments Results Conclusion How did bees tell the exact distance of the feeding place?Zoologists moved the feeding place slowly farther,and use a stop-watch to count how many times the bees repeated the dance per minute.The farther away the feeding station wa
8、s,the slower the dance was.Para.5The number of wagging dances per minute told the exact distance of the feeding place.Problems Experiments Results Conclusion Could bees tell each other the exact position of a feeding place?Scientists obtained more data and did more experiments.The zoologists clarifi
9、ed the procedure by which bees communicate information they use to find and fetch food.Para 6What does“make a beeline for someone or something”mean?Para.7-8 To go quickly along a straight course for somebody or something.A circle danceA wagging danceA faster wagging danceA slower wagging danceFood i
10、s near.Food is far away.Food is closer.Food is farther away.Note making1.Among the different kinds of bee,it is the honey-bee that has interested scientists most because of the language they use to communicate with each other.(P1L4)2.强调句3.“It is/was+被强调部分+that/who+句子其他部分Difficult sentencesPractices1
11、)It was in the house _ they got married _ they quarreled bitterly.It was not until they received their sons letter _ they felt relaxed.It is _ he was careless _ the car accident happened.wherethatthatbecausethat2)It was on Oct 1st,1949 _ New China was founded.It was Oct 1st,1949 _ New China was.that
12、when2.It seemed that one bee was able to communicate the news of food to other bees in its hive.(P2L7)communicate sth.to sb./sth.=convey This poem communicates the authors despair.The officer communicated his orders to the men by radio.The police communicate with each other by radio.4.One was close
13、to the hive,the other was much farther away.(P4L2)-_ further do we have to go?-Ive no idea.Perhaps one more mile.A.How B.How much C.Any D.What3.In order to tell the bees apart,he painted some bees with little dots of colour.(P2L11)tell apart=distinguish The twins are so much alike that we can hardly
14、 tell them apart.5.He marked all the bees that went to the far-away place red.(P4L4)far-away adj.(前置定语)-nearby far-away times/a far-away forest far away(表语或状语)He lives far(away)from the school.The hotel is far away.far from+adj“远远不;完全不;决非”I am far from happy in my present job.It is far from perfect.
15、6.make a beeline for:走近路,走直路As he spoke,he made a beeline for the door.If you want to catch up with the team,youd better make a beeline for them.那个饥饿的男孩直奔回家吃饭.The hungry boy made a beeline for e up 显现,出现：升到地平线上;提升，靠近，接近：The question never came up.从不曾发生过这个问题The sun came up.太阳升起了a general who came up
16、from the ranks.按等级晋升的将军came up and said hello靠近并打招呼Language e to light 发现，暴露(to be discovered/exposed)e.g.New facts about the ancient Egypt have recently come to light.The money didnt come to light until the old man was going to die.3.set out 出发,开始set out to do sth.set about doing sth.After supper M
17、ary set out to clear the table.After supper Mary set about clearing the table.晚饭后,玛丽动手收拾餐桌。set to work 着手开始工作He has set to learning English.他已开始学习英语。4.head v.朝某方向前进e.g.We are heading toward the mountain village.They saw the enemy troops heading northeast.head for 开往，前往（某地）e.g.The ship is heading for
18、 London for repairs.We set sail at dawn and headed straight for Shanghai.5.point v.指向，表明的位置或方向e.g.The hands of the clock pointed to half past one.He pointed to where the village lay.1.To teach a fish how to swim.2.Love me,love my dog.3.Look the barn door after the horse is stolen.4.Let sleeping dog lies.5.Im so hungry that I could eat a horse.6.Go home and kick the dog.7.You can make a crab walk straight.8.It rains cats and dogs.9.All his geese are swans.10.As stupid as a goose11.The cats shuts its eyes when stealing cream.12.Better a living dog than a dead lion.
