高一下册《Unit 4 Creatures large and small》精品PPT课件优质课下载

高一下册《Unit 4 Creatures large and small》精品PPT课件优质课下载

Do you like it? Why (not) ?

poisonous, ugly, frightening, nasty, scary, cute, useful, beneficial, hard-working

Some of us like spiders, while some hate it and even wants to kill it. But just imagine, what will the world look like if all the spiders disappeared? Now we’ll watch a video clip and learn about the consequences, as well as some knowledge about spiders.

treat: to attempt to cure (an injury or illness)医治，治疗

kill, slap- touch, stroke

Old habits die hard. Even thought he didn’t really like the spider, but at least he didn’t kill it and just let it go.

Now you know the consequences without spiders in the world. Do you think spiders are our friends or enemies?

Our main reading passage also discusses how spiders can both be useful and friendly to human beings. Let’s read it to learn more.

The first ten lines of this play is the most dramatic part. Now pls close your books. I’d like you to listen to the lines carefully. Pay attention to the characters’ emotion when they talk. After that pls answer the Qs here.

From lines 11---37 Winston expresses his view on spiders and supports his view by presenting the uses of spiders in three fields. Now

Properties/features

1. Why are spiders useful to farmers?

2. How can spiders live through winter?

3. What does the word "shelter" mean?

A strcture that provides protection.

survive: v. to continue to live despite difficulties

cone-shaped

What are the features or propertie of spiders' silk?

N-MASS?Steel?is a very strong metal which is made mainly from iron.?

elastic: able to stretch and then return to its original shape有弹性的

What do scientists plan to do with the knowledge of the spiders' properties?

artificial: not real, made to copy something natural人工的，人造的

bulletproof: able to stop bullets防弹的；

vest: a piece of clothing which covers the top of the body

Science: try to develop a material having similar properties.