英语七年级下冀教版unit1lesson4课件.

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d. 以辅音字母加 y 结尾的双音节词改 y 为 i，再加-er 和-est。如：easy-easier-easiest；heavy-heavier-
heaviest
f. 多音节词和部分双音节词，在词前加 more 和 most。 如：careful-more careful-most careful；beautifulmore beautiful-most beautiful
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Try to retell the story: 1. Li Ming, want, go by plane 2. but, his mother, want, take a bus 3. a train, slower than, a plane, but faster than, a bus 4. and, not too expensive 5. so, will take a train (go by train)
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(2)形容词比较级的用法如下： 表示两个人或事物进行比较时，用比较级。基本句型为： 主语+谓语（系动词）+形容词比较级+than+对比成分。 例如： He is taller than his father. 他比他父亲高。 This box is heavier than that one. 这个盒子比那个盒子重。 This shirt is cheaper than that one. 这件衬衫比那件衬衫便宜。 两者比较时，若强调其中的一方，基本句型为: 主语+谓 语（系动词）+the+比较级+of the two…。例如： Mary is the younger girl of the two. 玛丽是这两个女孩 中较年轻的一个。
bus
A train is slower than a plane but faster than a bus.
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Original degrees
fast slow tall cheap expensive
Comparative degrees
faster slower taller cheaper
than conj. 比
us pron. 我们
check v. 检查；核实
as adv. 同样地；像……一样
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Read the diary and answer the questions
1. How are Danny and Jenny going to travel from By plane Edmonton to Beijing?
take a car
take a train take a plane
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by bicycle by bus by car by train by plane
= on one’s bicycle = on a bus = in one’s car = on a train
= on a plane
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Practise this dialogue:
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Please, not a bus Let’s take a train It’s faster than a bus And cheaper than a plane A train’s just right Oh, hooray, Li Ming We can take a train On our trip to Beijing
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句型转换
1. He wants to go to Shanghai by train.(对划线部分提问) How _____ does he go to Shanghai? ______
2. It’s about 2,300 kilometres from here to there.(对划线 部分提问)
expensive
fast small cold go short
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bicycle(bike)
car
motorbike
bus
train
airplane(plane)
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walk
take a bike take o by bike
= go by bus
= go by car = go by train = go by plane
______ ______ it from here to there? How far ______ is
3. A train is slow and a plane is fast.(改为同义句)
A train is _____ slower_____ than a plane. 4. The car costs so much.(改为否定句) The car doesn’t _____ _____ cost so much.
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Let’s sing a song!
A plane is fast. A bus is slow. Let’s take plane. That is how I want to go. A plane is fast. But let’s take a bus. A bus is slow. But it doesn't cost much.
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4．But a plane is fast！A bus is slow！ 但是坐飞机快，而坐汽车慢。 句中 fast 是形容词，意为 “快的”。反义词是 slow，比 较级为 faster。slow 的比较级为 slower。例如： a fast car 一辆速度快的小汽车
A train is faster than a bus. 火车比公共汽车快。
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2．I want to meet them at the airport in Beijing with my mom and dad. 我想和我的爸爸妈妈在北京机场接他们。 句中 want to do sth.意为 “想要去做某事”，此时 want 相当于 would like，只是 would like 的语气较委婉。 例如： I want to go swimming.=I would like to go swimming. 我想要去游泳。 Bill wants to be a doctor. 比尔想要当一名医生。
fast 也可以作副词，修饰动词。例如： He can’t walk very fast. 他不能走得太快。 Li Ming runs faster than I. 李明比我跑得快。
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语法点拨
本课涉及到了形容词的比较级。形容词还有最高级形 式。 （1）形容词比较级、最高级的变化规则如下： a.一般在词尾加-er和-est。如：cheap-cheaper-cheapest b.以字母e结尾的加-r和-st。如：nice-nicer-nicest c.重读闭音节，词尾只有一个辅音字母，双写这个辅音 字母，再加-er和-est。如：big-bigger-biggest
Lesson 4 How Can We Go to Beijing?
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Think about it
Do you like traveling ? Why?
How do you like to travel? How dose Li Ming like to travel?
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Read the new words
more expensive
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Language points
1. They are going to travel by plane from Edmonton to
Beijing. 他们打算从埃德蒙顿乘飞机到北京。 by plane 乘飞机。by 是介词，意为 “靠；乘；骑”， 表示借助手段或方法，后接表示交通工具的名词，前 面不加冠词。例如： by car 乘小汽车 by bike 乘自行车 by train 乘火车 by motor 骑摩托车
注意：want 表示 “想要”时，不用于进行时态。
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3. We can take a train. 我们可以乘一辆火车。 （1）在本句中 take 为动词，意思是 “乘坐”。例如： take a bus 乘公共汽车 （2）take 还有 “拿”的意思。指把某人或某物从说话 人处带到另一处。例如：Don’t forget to take your coat. 别忘了带上你的外套。 Please take your book away. 请把你的书带走。 （3）与 take 有关的短语有：take sb./sth. to sp. 表示 “把某人或某物带到某处。take sth. with sb. 表示 “某 人携带某物”。take +名词/代词+地点副词” 表示 “把……带到……”。
About eleven hours. 2. How long is their travel? No, he doesn’t. 3. Does Li Ming know how much a train costs?
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Find the opposites in this lesson
cheap
slow big hot come long
A: How do you go to …?
B: I go to …by/ on…
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motorbike A motorbike is faster than a bike.
bike
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bus A bus is slower than a car.
car
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train
plane A train is slower than a plane. A train is faster than a bus.