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(共23张PPT)
Grammar Focus
Unit 4
My Favourite Subject!
学习目标
2.能学会在一定语境中正确使用and, but, because。
1.学习连词的基本含义，掌握连词and, but, because的用法。
Lead-in
观察下列句子
I study English and Chinese.
我学英语和汉语。
Does he work at school or in the hospital
她在学校工作还是在医院工作？
I get up early, but my brother gets up late.
我起床很早，但是我弟弟起的很晚。
She could only nod, because her mouth was full.
她只能点点头，因为她口里塞满了东西。
and, but, because 连词
连 词 (Conjunction)
连词定义: 用来连接词、短语或句子的词。
新课讲授
连词 释义 用法
and 和; 还有 表示并列、叠加关系
or 或者; 还是 表示选择关系
but 但是 表示转折关系
when 当……时 用来连接两个句子
before/ago 在……之前 表示往前推算一段时间
because 因为…… 表示原因
so 所以; 那么…… 表示结果
if 如果…… 表示条件假设
3a
I have art and geography today.
English is important, and my English teacher is really nice.
Biology is difficult but important.
History is my favourite subject, but my sister doesn't like it.
I like Chinese because it's fun.
He doesn't like maths because it's boring to him.
1.We use “_________” to give a reason.
2. We use “_________”to give another idea.
3. We use “_________” to give two different ideas.
because
and
but
Read the sentences. Find out when to use and, but, and because. Then complete the statements with and, but, or because.
教材原句
English is important, and my English teacher is really nice.
英语很重要，并且我的英语老师很好。
常见用法
and意为“和;又”，为连词,表示顺承或并列的逻辑关系。
John and Tom are our good friends. 约翰和汤姆是我们的好朋友。
and
拓展：
(1)用作并列连词，可以连接并列的单词、短语或句子。
Come here and you can have a good time. 来这里，你会玩得开心。
(2) (易错)在否定句中要把and变为or。
I like apples and oranges.我喜欢苹果和橙子。
I don' t like apples or oranges.我不喜欢苹果和橙子。
and
教材原句
Biology is difficult but important.生物很难但很重要。
History is my favourite subject ,but my sister doesn’t like it. 历史是我最喜欢的科目，但我的妹妹不喜欢历史。
常见用法
but是并列连词,连接两个分句、短语或单词,
表示语义上的转折。
I am old, but you are young. 我老了,但你还年轻。
but
拓展：
and, but 与or 的用法区别
and 连接两个或几个并列的成分，表示并列或顺承，常用于肯定句中，意为“和;与”。and连接的并列成分作主语时，谓语动词用复数形式。
but 表示转折的逻辑关系或两种情况的对比，意为“但是;然而”。
or 生否定句中，连接并列成分用or不用and, 意为“也不”; or表示选择关系时，常用于选择疑问句中，意为“或，还是”。
Our room is small, but it' s very tidy. 我们的房间小，但是很整洁。
He can play the guitar and he can sing，too. 他会弹吉他，也会唱歌。
Are you coming or not 你来还是不来
教材原句
I like Chinese because it’s fun. 我喜欢语文因为它有趣。
He doesn't like maths because it’s boring to him.
他不喜欢数学因为数学对他来说很厌烦。
常见用法
表示因果关系，“因为”。
I didn't go to school because I was ill.（我没去上学因为我生病了。）
He succeeded because he worked hard.（他成功了因为他努力工作。）
注意：在一个句子中不能同时出现because和so。
because
3b
Match the two parts to make sentences.
1. I have a bicycle,
2. I like to learn about IT
3. She likes to listen to music
4. He is good at English,
5. My favourite subject is geography
6. I don’t like drawing,
A. and he often helps me with my English.
B. because I like travelling.
C. but I like my art teacher a lot.
D. and draw pictures.
E. but I often walk to school.
F. because it’s fun to learn to use computers.
3c
Complete the passage with and, but or because.
I love Thursday afternoons _______we have a fun class then. It's biology class, _______it's exciting! Miss Baker is the teacher,_____ she works hard to make the class interesting. I'm not good at science,_______ I like the class very much. We learn about different plants _________animals. Sometimes it's difficult to remember all the information, ________Miss Baker helps me. She's my favourite teacher__________she makes everyone in the class feel special.
because
and
and
but
and
but
because
1. listen to 听；倾听
Listen to the teacher carefully! 请认真听老师讲话!
I always listen to my parents’ advice. 我总是听我父母的建议。
He listens to music every day. 他每天听音乐。
注意：
listen to后面需要接宾语,通常是名词或代词，示要听的对象。例如，不能说 “I listen music”,而应该说 “I listen to music”。
listen to与hear的区别
hear表示"听到”的结果，而listen to更强调“听”的动作。
Language points
2.remember v.记住；记起
用法讲解：
remember to do sth. 记得要去做某事
remember doing sth. 记得做过某事
I remember the first time we met.
我还记得我们第一次见面。
Remember to lock the door when you leave. 离开时记得锁门。
Remember to take care of yourself. 记得照顾好自己。
I remember calling her yesterday. 我记得昨天给她打过电话。
3.good at 擅长
good at 前通常加系动词“be”,后面需要接名词或动名词(即动词的-ing形式) , 表示示所擅长的内容。
He is good at playing basketball. (他擅长打篮球。)
She is not good at dancing. (她不擅长跳舞。)
4.as prep. 如同；作为 conj. 当……时；由于
作连词，意为“当……时；由于 ”
As I was walking to school, it started to rain.
当我走路去学校的时候，开始下雨了。
As you were not there, I left a message. 因为你不在那里，我留了言。
作介词，意为“如同；作为”
As the class monitor, he always helps other classmates.
作为班长，他总是帮助其他同学。
●Which is your favourite school day
●What subjects do you have that day
●What subjects on that day do you like and why
●Who likes the same subjects as you and why
3d
Do a survey in class using the questions below.
1．表示星期的词汇 2．描述学科特点的形容词
．
Monday
Tuesday
Wednesday
Thursday
Friday
easy——difficult
free——busy
fun——boring
interesting——boring
cool/relaxing/useful
●Which is your favourite school day
●What subjects do you have that day
●What subjects on that day do you like and why
●Who likes the same subjects as you and why
Wednesday.
I have Chinese, English and geography.
I like geography because it's interesting.
John likes the same as me. Because he likes traveling.
连词 释义 用法
and 和; 还有 表示并列、叠加关系
but 但是 表示转折关系
because 因为…… 表示原因
课堂总结
单项选择。
当堂检测
1.Leo is my good friend. He likes tennis____ ping-pong.
A. but　 B. or　 C. and　 D. because
2.She is very heavy, ____ she never stops eating.
A. so　 B. but　 C. and　 D. or
3.-- Would you like to go to the cartoon show with me
-- It sounds like fun, ____ I’m too busy.
A. so　 B. for　 C. or　 D. but
4.He wants to be an actor____ it's an exciting job.
A. and　 B. but　 C. because　 D. or
1) 复习本节课所学的语法。
2) 完成练习册中的练习。
Homework

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