仁爱英语八年级Unit4 Topic 1
一、教学目标：
学习用英语谈论和描述自然界的动植物，主要学习和掌握形容词比较级的用法。
通过教学让学生能养成保护环境，爱护动植物的意识。
二、核心词汇：butterfly frog snake fox a stream beach aside lake ocean nature sunshine forest sky rainforest earth share joy ro countryside everywhere noi wild feed fast flowing meter control clear rubber protect write dangerous surface drop cover lay lo wood.
三、重点短语： talk to think about in danger thousands of feed on in nature in fact
find out look for lay eggs.
四、日常交际用语：
I think animals are more interesting.
Plants are more beautiful than animals.
We share the world with them.
They are now in danger.
There are also greener trees clearer rivers and lovelier farm animals.
The plants stay greener for longer there.
Rainforests cover 6 of the surface of the earth.
But it is one of the most dangerous fish in the world.
It’s so strange. We must save every drop of water.
五、重点句型解析.
1.I’m interested in playing sports.
I think animals are more interesting.
【辨析】interesting 与 interested
Interesting是形容词，意思是“令人感兴趣的”，说的是“物”性的，一般在句中做表语（主语为事物）、定语等。
如： Playing baball is very interesting.
This is an interesting movie.
Interested形容词，常构成be interested in… 说的是“人”性的，在句中做表语（主语为人）。
如： That book is so interesting that everyone is interested in it.
He is interested in playing computer.
【拓展】常见的这类词有： Interesting interested Surprising surprid Amazing amazed Exciting excited Boring bored Disappointing disappointed Moving moved
2: I keep a pet dog.
【用法】keep 动词，饲养。如：
The girl likes to keep cats.
They keep a lot of sheep.
They keep cows on their farm.
3.We share the world with them.
【用法】share动词，共用；共有；分享；分担的意思。如：
The brothers shared the same room.
Mike shares a bed with his brother.
Can you share the happiness with me
4The are now in danger.
【用法】 Be in danger “处于危险中”。
如 ： You may be in danger if you travel alone at night.
His grandfather was sick and in danger of losing his life.
dangerous 是形容词。危险的意思。如： The tiger is a dangerous animal.
5 It looks for food at night along the a floor.
【知识点辨析】look for find find out.
Look for “寻找”，强调寻找的过程。
如： He is looking for his pen he lost it yesterday.
Find “找到”， 强调找的结果。
如： I found the book under the bed.
Find out “ 了解”，“打听”， “查出”。表示经过一番努力，调查了解到某些事情。后常接宾语从句。
如： Plea find out when the ship sails for Shanghai.
Plea find out what time they are coming.
6 In spring it returns to the fresh water stream to lay eggs.
【用法】return 动词， “返回；回到”的意思。
如： The young man returned to China from America in 2004.
7 So the butterfly is losing its home.
【用法】 Lo “ 丢失；”，过去式为lost， 意思为 “丢失的”
如： The little girl lost her way in that big city.
He lost a book that day.
8 What are you thinking about
【知识点辨析】think about think over think of
1 think about 意思为“考虑思考”，与 think of 同义。
如： People without a job try not to think of/ about the future.
What do you think of/ about your family
2 think of作“想起，想到，认为”时，与think about有不同。
如： She often thinks of her friend Anna.
3 think over 意为“仔细考虑、思考”，over为副词，代词应放在其前。
如： I’ve thought it over for a long time.
Let me think over this difficult problem. 。
9: In this area it is often hot and rainy with beautiful beaches and sunshine.
【用法】 Area 区域，作名词用。
如：This dia spreads quickly in this area.
10: The plants stay green longer there.
【用法】 Stay在这里表示继续处于某种状态，后接形容词等表语。
如： The shop stays open till 12 o’clock.
You can’t expect to stay young.
He wanted to stay ahead of the others.
11: In this area there is very little rain. Fewer plants and animals can live there.
【知识点辨析】few a few a little little
1） few与可数名词复数连用，表示否定。意思“很少，几乎没有”。
如： He has few friends here.
He is a shy boy he often has few words.
2）little与不可数名词连用，表示否定。意思“很少，几乎没有”。
如： There is little water in the glass.
I have little money in my pocket.
3） a few表示肯定，“一点儿”的意思。与some的意思比较接近。修饰可数名词。
如： You don’t need to go shopping.
There are a few eggs in the fridge.
4） a little 表示肯定，“一点儿”的意思。与some的意思比较接近。修饰不可数名词。
如： There is a little milk in the bottle plea pass it to me.
12: In summer rocks streams and forests are even more beautiful with blue skies clear lakes and fast-flowing rivers.
【用法】 With介词，表示行为方式的用法：
1） with +名词（代词）+介词短语。
如： The guard stood there with a gun in his hand.
