(
课件网) Unit 5 Look into Science Lesson 28 The Study of Living Things Do you know him Free Talk Charles Robert Darwin He is a . He studies living things. biologist Biology is a subject that studies life phenomena（现象） and the laws of life activities. It is the foundation （基础）of agriculture, forestry, medicine and environmental science. Dig in What do you know about biology Lead in They are butterflies. This is Dr. Chip Taylor. He studied one kind of North American butterfly. What have been drawing Dr. Taylor’s attention Reading tasks Fantastic facts about butterflies. fantastic adj.奇异的，了不起的，极好的 New Words Most birds have to fly long distances to migrate. No. It is puzzling. How did they find their old home Do you know adj. 令人费解的 v. 移居; 迁徙 New Words adj. 化学的;与化学有关的; n. 化学制品;化学品 These are chemicals. Magnesium can burn completely in oxygen. adv. 完全地 New Words Do you know the relationship between the female and the child female n. 雌性的动物或植物;女子 This female is the child’s grandmother and the child is the femal’s grandchild. They are the butterflies that Dr. Chip Taylor studied . Listen and follow Read the lesson and complete the table. Fantastic facts about butterflies The butterflies always _____ to the same small piece of forest and _____ the winter there. The butterflies that return to the south are the great great grandchildren of the butterflies that left for the north. The females _____ eggs on only one plant：milkweed. return spend lay Reading tasks Read the lesson and complete the table. Things that Dr. Taylor worries about In Mexico, people cut down the trees that the butterflies need to _____on. In the U.S. and Canada, farmers use chemicals that _____ milkweed. Things that scientists can’t understand How do the butterflies know when to fly south How do the great great grandchildren of the butterflies _____ the same forest find rest kill Reading tasks Emotional promotion Are dinosaurs the ancestors of mankind Emotional promotion Do you know the mystery of whale suicide There are many mysteries yet to be discovered. Would you like to study biology we did yeserday that Join the sentences to make attributive clauses. Example： We did some experiments yesterday. The experiments were fantastic. 1, 确定为先行词。 Grammmar Steps: 2, 确定关系代词/副词,并放在先行词之后。 3, 把从句的剩余部分加在后面。 The experiments 3, 把主句的剩余部分加在后面。 were fantastic. Join the sentences to make attributive clauses. 1.I asked him to mail the letter. I wrote the letter to my cousin. _____ 2.Yesterday I met a boy. The boy is a new member in our art club. _____ 3.Mary was carrying a bag. The bag cost her a lot of money. _____ 4.Football is a team sport. Football is popular all over the world. _____ I asked him to mail the letter that I wrote to my cousin. Yesterday I met a boy who is a new member in our art club. Mary was carrying a bag that cost he ... ...
