Unit4Creatureslargeandsmall.ppt

1、Game about creatures,insect meat eater poisonous 8 legs pest-killer / enemies of insects friends of humans hibernate spit out silk elastic web-weaver,A reporters investigation work,Our aims at the end of the class should be: Gather opinions and detailed information about spiders Write a report about

2、 spiders,Skim L1-8,What do Betty and Winston think of spiders?,Task 1 Peoples impression of spiders,Insect or not？Why?,Task 2,The Truth about Spiders,Spiders may look like insects, but are very different from them. One difference between a spider and an insect is that a spiders body is divided into

3、two parts, the head and the abdomen(腹部). Insects have a third part, called the thorax(胸部). Additionally, spiders have eight legs, while insects have only six.,Task 2,Insect or not？why?,The differences,8 legs;,6 legs;,spiders,insects,2-part body,3-part body,Task 2 Why not insects?,All spiders are mea

4、t-eaters. They eat insects or other small creatures. They use their fangs to inject their prey with poison. All spiders produce silk. However, not all spiders make webs. There are nearly 40,000 types of spiders in the world. The largest spider is the goliath spider, which lives in South America. One

5、 goliath spider measures more than 27 centimeter across. These spiders primarily live on birds.,Task 3 Other facts about spiders,In order to write a report on spiders, we have already gathered peoples opinions on them, and facts about them.,But we also need to investigate something new and interesti

6、ng, something that people dont know about them.,Task 4 Friend or Enemy,1. L110 uses of spider silk 2. L1124 uses of spiders in pest control 3.L2532 uses of spider poison 4. L33-37 right attitude towards spiders 5. L38-40 Betty and Winstons different views on spiders,Task 5 Properties of spiders,It m

7、ight be used to treat human disorders.,enemies,friends,survive,shelters,healthy and hungry,stomachs,attack,pest control,copied,stronger,lighter,elastic,material,spacecraft,artificial organs,bulletproof,bites,Task 6 Act out a debate about spiders,Bettys point of view: just an insect; nasty, ugly, fri

8、ghtening, scary, useless, annoying, poisonous, harmful to human, should be killed Winstons point of view: not insects, pest killers, our friends, helpful, elastic silk, useful poison, not harmful to humans, should be made good use of, should be respected,Deep thinking： Are spiders really what they a

9、ppear to be? What should be the right attitude towards creatures like spiders?,Task 7 Write a report about spiders,Writing a report on Spiders Insect or not Friend or enemy Properties Elastic silk simple words; short sentences Structure loose; without a specific order Content repeated or irrelevant

10、information,Serious writing,Language formal; big words; subordinate clauses；non-finite verbs Structure well-organized; follow an order Content brief; closely related to the topic,One possible version: Spiders are not _, but are useful _. Chinese farmers have known that spiders are the enemies of ins

11、ects and the friends of humans, so the farmers build _ for them and put them all over their _.This way, spiders can eat the millions of_ attacking the farmers crops. Besides, the _ of spiders is also useful. Scientists want to use a similar material in _, artificial _and _ vests.,insects,creatures,s

12、helters,fields,insects,bulletproof,silk,spacecraft,organs,Whats more, spider bites may be _ to insects. However, the _ can be _to people .For example, it can be used to _some brain disorders in humans. People should try to understand things in _, like spiders, and not _ them.,poison,dangerous,treat,des