牛津上海版高一下册Unit 4 Creatures Large and Small课堂教学课件ppt

这是一份牛津上海版高一下册Unit 4 Creatures Large and Small课堂教学课件ppt，共30页。PPT课件主要包含了cricket， mosquito， cockroach， dragonfly，spider，shelters，survive等内容，欢迎下载使用。

They live in leaf litter, under r near lgs r arund damp places in gardens. Sme peple like t cllect them in the field in summer and keep them as pets.
They like t hide in vegetatin near water r in cl, damp places. Many species fly in search f bld meals in the evening.
It’s a large black r brwn insect that lives in dirty huses, especially if they are warm and there is fd t eat.
It’s an insect that has lng back legs fr jumping and makes shrt lud nises. It can hp, walk, and fly.
It’s a flying insect with a lng, thin bdy and tw pairs f wings. They are ften fund near water. They like t eat msquites.
It’s a small creature with eight legs, which catches insects using a fine netwrk f sticky threads.
Hw much d yu knw abut spiders?
Many spiders use their sticky silk webs t catch fd. All spiders are dangerus t humans. Sme spiders are 25 cm in size. Sme spiders eat lizards and birds.
Mst spiders live ne t three years. Spiders kill their victims with pisn. Spiders can nly live in dry places. Spiders are insects.
What are the differences between spiders and insects?Read the fllwing passage and finish the exercise.
Spiders can't fly. Many insects can fly.
A spider
Spiders have tw main bdy parts.
Insects have three main bdy parts.
All spiders are carnivres (that is, meat-eaters). They eat insects r ther small creatures. They use their fangs (sharp teeth) t inject their prey (猎物) with pisn. All spiders als have spinnerets (吐丝器) that are used t prduced silk. Hwever, nt all spiders make webs. There are nearly 40,000 types f spiders living in all parts f the wrld. One f the largest spiders is the gliath spider, which lives in Suth America. One gliath spider measures mre than 27 cm acrss. These spiders primarily live n birds. Like mst spiders, they are nt generally cnsidered dangerus t humans.
* Hw many parts are spiders’ bdies divided int?A. three B. tw C eight D. six
* What d all spiders live n?A. insects B. birds C. peple D. meat
* All spiders ______, but nt all spiders ______. make silk, prduce webs eat insects , have fangs have eight legs, prduce silk have tw parts, have eight legs
* While all spiders are pisnus, mst are ______.harmful t peple nt harmful t peple
* Are spiders insects?* What d spiders live n? * Hw big is a spider?* Where can spiders be fund?* Are spiders ur friends r ur enemies?
Use adjectives t describe spiders
My view n spiders is that they are _______________.
Friend r Enemy?
Skimming1. What is the “friend” r “enemy” mentined in the title? A spider.2. What des Winstn think f spiders? Winstn thinks that they are very useful creatures.3. What des Betty think f them? Betty thinks they are nasty and shuld be killed.
Match the main ideas with the relevant parts. L1-10 uses f spider silk L11-25 uses f spiders n pest cntrl L26-32 uses f spider pisn L33-40 intrductin f the tpic
Scanning Facts abut spiders*They are very ________ creatures.*They are enemies f _______, but friends f _______.*During _______ in China, _______ build _______ fr them.*In _______, the spiders eat insects that attack farmers’ _______.*They make webs with silk which is ______, ______ and ________.*Their pisn is useful – it might be used t treat _______ disrder in humans.
Read and think 1. Why did Betty jump in fright? Because she saw a spider.2. What were Winstn’s views n spiders befre he watched the prgramme? He thught they were nasty and dangerus.3. What happened t spiders in winter befre farmers built shelters fr them? Mst f them did nt survive.
4. Why are the insects nt happy? Because they may be eaten by the spiders.5. Hw did Betty feel abut Winstn’s talk abut spiders? She felt bred.6. What prbably happened t the spider that Betty and Winstn saw? Why? It prbably was nt killed and ran away, because spiders are useful creatures.
cne-shaped straw tent
strnger than steel
lighter than a feather
as elastic as a rubber band
The prperties f spider silk
Uses f spider silk
artificial rgans
bullet-prf vest
Uses f spider pisn
treat brain disrders