资源简介

(共22张PPT)
Unit 7
The natural world
Grammar
学习目标
能够并正确运用两种基本句型：
S+V+IO+DO、S+V+DO+OC。
能够掌握并正确使用and, but, or 和so。
Hobo brought Eddie his clothes.
S
V
O
有些及物动词后+两个宾语，间接宾语(人)和直接宾语(物)。
物
人
人间物直
direct object(DO)
indirect object (IO)
Look at the sentence and try to analyse the sentence structure.
Lead in
S+V+O (indirect)+O(direct) → The sun gives ocean animals light and heat.
S V
O O
A Verbs and sentence structures (Ⅱ)
Some verbs can take two objects, a direct object and an indirect object.
新课讲授
Presentation
We can change the order of the direct and indirect objects by using to or for.
The sun gives light and heat to ocean animals.
We should build a better home for local wildlife.
TIP
These verbs are often used with to:
give hand lend offer pass post read sell send show take teach tell write
TIP
These verbs are often used with for:
build buy cook find get leave
make order pick prepare save
S+V+O (direct)+C → The mother bird keeps the eggs safe.
S V O C
They call the ocean the ”heart“ of the earth.
We made the forest the topic of this class.
An object complement can also follow a direct object to give more information about the object.
We can add an adverbial to the structures above. We use
an adverbial to show when, where or how an action is done.
The ocean provides a home for animals all year round.
有些及物动词后面可以跟两个宾语，通常其中一个指人，另一个指物；指人的叫间接宾语， 指物的叫直接宾语。由这类动词构成的句子结构是S + V + O + O（主＋谓＋宾＋宾）。
e.g. He showed me his driving licence. 他向我出示了他的驾照。
（me 是间接宾语，his driving licence 是直接宾语）
I will buy you some flowers. 我会给你买一些花。
在含有双宾语的结构中，当直接宾语在间接宾语之前时，间接宾语前通常加 to 或 for 引导的短语。
e.g. He gave me some food. 他给了我一些食物。= He gave some food to me.
I will make Grandpa some jiaozi. 我要给爷爷包些饺子。
= I will make some jiaozi for Grandpa.
注意：能与 to 搭配的动词有 bring、feed、give、hand、lend、offer、pass、pay、post、 read、sell、send、show、take、teach、tell、write 等。
能与 for 搭配的动词有bring、build、buy、cook、find、get、leave、make、order、pick、save 等。
动词及基本句型（II）
有些及物动词后面常跟宾语补足语，用来补充说明宾语的行为或状态等。这样构成的句子结构是 S + V + O + C（主＋谓＋宾＋宾补）。
e.g. I saw him crossing the street. 我看见他在过马路。
注意：宾语补足语常由形容词、名词、介词短语、动词 -ing 形式、动词 -ed 形式、动词不定式来充当。
e.g. We call them mooncakes. 我们把它们叫作月饼。
I had my computer repaired. 我找人修好了我的电脑。
A1 Amy is writing about the desert. Read her writing and write the main structures of the underlined sentences using S+V+O+O or S+V+O+C.
The desert
Deserts are difficult places for animals to live. Little rain and too much sunshine make deserts dry. Many desert plants give animals water. These plants store water in their leaves.
S+V+O+C
S+V+O+O
Some animals feed on the leaves, and the water can keep them healthy. Quite a few desert plants also give animals food. Their flowers and fruits can provide animals with energy.
S+V+O+C
S+V+O+O
Practice
B Using and, but, or and so
We use conjunctions like and, but, or and so to join ideas together.
Rainforests are hot. They get a lot of rain.
Rainforests are hot, and they get a lot of rain.
We use and to join ideas that are similar.
With more than two expressions, we usually only put and before the last.
The desert is hot, dry and sandy.
Oceans provide food for many animals, produce oxygen and store heat from the sun.
Presentation
We use but to join ideas that are different.
This kind of fish can find enough space here. They can find little food.
This kind of fish can find enough space here, but they can find little food.
We use or to introduce another possibility.
Birds can live in the forest. They can also live in the wetland.
Birds can live in the forest or in the wetland.
In negative sentences, we use or to join two or more ideas.
The deep ocean isn’t warm. The deep ocean isn't bright.
The deep ocean isn't noisy.
The deep ocean isn’t warm, bright or noisy.
We use so to express the result of something.
Deserts are dry. Some plants keep water in their leaves.
Deserts are dry, so some plants keep water in their leaves.
并列连词 and、but、or 和 so
我们可以用并列连词 and、but、or 和 so 来连接单词、短语或者句子。
e.g. Our English teacher is kind and helpful.
我们的英语老师既和蔼又乐于助人。
The boy is not very tall, but he runs very fast.
这个男孩个子不是很高，但跑得很快。
Do you often go home on foot or by bicycle
你通常回家是步行，还是骑自行车？
She was ill, so she did not go to school.
她生病了，所以没去上学。
注意：并列连词可以用来表示并列关系、转折关系、选择关系或因果关系等。
并列连词 and 意思是“和，又”，表示并列关系。
e.g. Mike likes playing football and singing songs.
迈克喜欢踢足球和唱歌。
并列连词 but 意思是“但是”，表示转折关系，所连接的成分意思往往相反或相对。
e.g. The room was small but comfortable.
房间虽小，但很舒适。
并列连词 or 意思是“或者”，表示选择关系。
e.g. Which do you like better, juice or coffee
果汁和咖啡，你更喜欢哪一个？
注意：在否定句中并列成分通常用 or 连接，而不用 and。
e.g. I cannot speak Japanese or French. 我不会说日语和法语。
并列连词 so 意思是“因此，所以”，表示因果关系，常用来连接两个简单句。
e.g. It began to rain, so we went home.
开始下雨了，所以我们就回家了。
注意：并列连词 so 和从属连词 because（因为）不能一起使用。
The dog was hungry, so we gave it something to eat. （ ）
Because the dog was hungry, so we gave it something to eat. （ ）
B1 David is writing about ecosystems. Help him join his ideas using and,
but, or and so.
1 Grasslands can be hot. Animals sit under the shade of trees.
___________________________________________________
2 Wetlands can have salt water. They can have fresh water.
___________________________________________________
3 There are forests in Asia. There are forests in Europe.
___________________________________________________
4 Deserts are dry. They are not always hot.
___________________________________________________
5 Some rainforest animals don't like wind. They don’t like rain.
___________________________________________________
Grasslands can be hot, so animals sit under the shade of trees.
Wetlands can have salt water or fresh water.
There are forests in Asia and Europe.
Deserts are dry, but they are not always hot.
Some rainforest animals don’t like wind or rain.
Practice
B2 Write about what you know about ecosystems, using S+V+O+O and S+V+O+C. Use and, but, or and so to join your ideas.
An ecosystem is a community where living things and non-living things interact.
Plants give animals food and oxygen. (S+V+O+O)
Animals help plants spread seeds and pollinate flowers, so plants can grow better.
Some animals eat plants, but others eat meat.
The sun provides light for plants, and plants make food for themselves.
Rain gives water to rivers, or it waters the soil directly.
Worms keep the soil healthy, which makes the soil good for plants. (S+V+O+C)
If we protect forests, we will keep many animals safe. (S+V+O+C)
But if we cut too many trees, animals may lose their homes, so we must be careful with nature.
Show time
1.内容完整性
（完整涵盖生态系统的核心要素，内容准确且有细节。）
2.内容完整性
（句子结构正确，无明显语法错误：如主谓一致、时态正确。）
3.连词使用
（正确使用 and、but、or、so 连接句子，逻辑清晰，符合用法规则。）
4.句式运用
（正确使用 and、but、or、so 连接句子，逻辑清晰，符合用法规则。）
1. Jason often tells us funny stories. ( )
A indirect object B subject C direct object
2. Amy found English interesting. ( )
A indirect object B direct object C object complement
C
C
一、选择画线处所做句子成分
3. My mother bought me a computer. ( )
A indirect object B direct object C object complement
A
当堂检测
I like apples ______ bananas. They are both my favourite fruits. ( )
A. and B. but C. or D. so
2.She studied hard, ______ she still failed the exam. ( )
A. and B. but C. or D. so
3.Do you want to go to the park ______ stay at home ( )
A. and B. but C. or D. so
4.It was raining heavily, ______ we decided to cancel the picnic. ( )
A. and B. but C. or D. so
5.He can play the piano ______ the guitar very well. ( )
A. and B. but C. or D. so
二、选择正确的连词填空
A
C
B
D
A
Homework
Review the grammar we’ve learnt today.
Preview Word power on page 100.

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