每个句子读10遍，理解意思。

We crossed the bridge over the river.
The bus hit the bridge.
There are four seasons in a year. They're spring, summer, fall, winter.
Spring, summer and fall went by, and winter came.
The telephone is by the window.
Come and sit by me.
My Uncle Jim had a high fever.
He has a cold, and he feels very bad and uncomfortable.
I have a bad toothache, I want to see the dentist.
I will fight the dragon.
The princess played with the dragon.
She put on her coat and went out.
I put the radio on.
The children put on a play.
I'm a grumpy old man.
Why does the sun shine?
The sun was shining and the sky was blue.
This room gets very little sunshine.
She made her bed, and tidied her room.
Let's tidy up the room.
The room is clean and tidy.
His bedroom was not very tidy.
The bedroom was very untidy.
My bedroom is tidier than his.
My bedroom is the tidiest of all.
Do you like this hot weather?
No,silly,those aren't your shoes!
We had to wear these silly little hats.
You silly boy！
Does he live with a Princess?
Do you live with a Princess?
Princess Anna said, "How do you do?"
The prince was turned into a frog by the witch.
She became queen in 1952.
He became king in 1932.
I have a sinking feeling.
How do you feel? I feel better now.
How are you feeling today?
My mouth felt dry.
The city has become very clean.
I want to become a doctor.
She became queen in 1952.
Kipper looked like a monkey.
Pull it out.
Don't wobble the desk.
Let me have a try.

Q:为什么离开水的螃蟹会吐泡泡呢？

A：因为螃蟹是用腮呼吸的，水里的氧气进入腮里，剩下的水分从嘴两边吐出。离开水后腮里的水会减少，就会鼓动嘴和腮，吸进大量的空气，与腮里水分结合就形成了泡泡。

趣味知识

螃蟹虽然小，但是食量很大。把多余的食物转化成营养储存在肝脏中。
螃蟹分为：河蟹和海蟹。

New Words:

bridge [brɪdʒ] 桥
fall [fɔːl] 秋天 fall =autumn

We crossed the bridge over the river.
我们穿过了河上的桥。

The bus hit the bridge. (hit的过去式和过去分词还是hit）
公共汽车撞到了桥上。

There are four seasons in a year. They're spring, summer, fall, winter.
一年有四个季节，他们是春天夏天秋天和冬天。

Spring, summer and fall went by, and winter came.
春天，夏天和秋天过去了，冬天来了。

Q:为什么人要喝水？

1、水是吸收营养，输送营养物质的介质
2、排泄废物的载体
3、通过水进行新陈代谢。
4、调节体温，润滑关节器官的作用

New Words:

by [baɪ] 靠近;在…旁边
shed [ʃed] 简易房，棚
stream [striːm] 小河;小溪

The telephone is by the window.
电话在窗户旁边。

Come and sit by me.
过来挨着我坐。

Q:为什么鲸鱼会喷水？

A：鲸鱼喷水是因为它是在深呼吸。鲸鱼从海底里浮到海面换气时，肺部强大的气流会冲鼻孔，将鼻孔上的海水喷出来，就形成了水柱。

趣味知识

鲸鱼也是跟人一样靠肺呼吸的。
鲸鱼是哺乳动物，不属于鱼类。鱼类是左右摆动鳍尾向前游；鲸鱼是上下摆动鳍尾向前游。

New Words:

fever [ˈfiːvər] n.发烧;发热
cold [kəʊld] adj.寒冷的;冷的. n.感冒
toothache [ˈtuːθeɪk] 牙痛
dentist [ˈdentɪst] 牙科医生;牙科诊所

have a fever 发烧
have a cold 感冒
have a headache 头痛
have a toothache 牙痛

My Uncle Jim had a high fever.
我叔叔吉姆发了高烧。

He has a cold, and he feels very bad and uncomfortable.
他感冒了，感觉很不好，很不舒服。

I have a bad toothache, I want to see the dentist.
我的牙齿疼得很厉害，我想去看牙医。

Q:为什么感冒时吃东西会没有味儿？

A：因为感冒时鼻子粘膜充血肿胀就会不通气，食物的味道就闻不到。所以吃东西就觉得没味儿。

趣味知识

感冒患者要保持足够的饮水量，但是需要间断性的饮用。
鸡汤是感冒的良药，对治疗嗓子疼，缓解由流感和普通感冒引起的症状非常有功效。

New Words:

knight [naɪt] 骑士
will [wɪl] 将
play with 和...一起玩
pond [pɒnd] 池塘(尤指人工建造的)
pool n. 水塘，池塘（尤指自然形成的）

I will fight the dragon.
我将要和龙搏斗。

The princess played with the dragon.
公主和龙一起玩。