典范英语8-5翻译概括

THE BIG CHANCE大好时机

一‘Drink your tea’

Ray Martin, the new boss of Smalltown Football Club, was very happy. It was almost half-time and his team were winning 1-0.

Ray raced down to the changing room to talk to the team. Eleven cups of tea were waiting for the players.

The team jogged in, looking tired but happy.

‘Well done, lads,’ smiled Ray.‘You must be thirsty. Drink your tea while it`s hot.’

‘In a minute, boss,’ said Steve the captain.

Then Ray noticed one player after another taking their cups of tea into the sh

第八章 多工位级进模的设计复习上次课的内容1. 一般多工位级进模的工作动作顺序？ 2. 多工位级进模中凸模常用的固定方法？ 3. 凹模常用的结构类型？拼块凹模的固定形式？

第八章 多工位级进模的设计第四节 多工位级进模主要零部件设计二、主要零部件设计(续)3.带料的导正定位 带料的导正定位方法：常使用导正销与侧刃配合定位 侧刃作定距和初定位 导正销作为精定位 条料的定位与送料进距控制：

靠导料板、导正销和送料机构来实现。 工位的安排： 导正孔在第一工位冲出； 导正销设在第二工位； 检测条料送进步距的误差检测凸模可设在第三工位 ；

第八章 多工位级进模的设计第四节 多工位级进模主要零部件设计二、主要零部件设计(续)4.带料的导向和托料装置 由于带料经过冲裁，弯曲，拉深等变形后,在条料厚 设置原因： 度方向上会有不同高度的弯曲和突起,为了顺利送进 带料，必须将已被成形的带料托起,使突起和弯曲的 部位离开凹模洞壁并略高于凹模工作表面。 ①浮动托料装置 ②浮动托料导向装置 A、托料导向钉 B、浮动托料导轨导向装置

第八章 多工位级进模的设计第四节 多工位级进模主要零部件设计二、主要零部件设计(续)5.卸料装置的设计 作用： 压料、卸料、导向保护等。 结构：分

一、一个方程的情形对方程

F ( x, y ) 0

(1)

如能确定一个一元隐函数 y 隐函数的导数. 2 2 如 x y

f ( x) 且隐函数可导,

则可将y看成x的函数,对上式直接求导,可求出

1 0

直接对x求导,利用y为x的函数,可得

x 2 x 2 yy 0 y y' '

但必须先明确两个问题: 1) 在什么条件下,方程(1)可以确定隐函数? 2) 如能确定隐函数,其是否可导?

1. F ( x , y ) 0定理1 设函数F(x,y)在点 P( x0 , y0 )的某邻域内具连续 偏导数,且

F ( x0 , y0 ) 0, Fy ( x0 , y0 ) 0,

则方程F(x,y)=0在( x0 , y0 ) 的某邻域内能唯一确定一个 可导且具连续导数的函数y=f(x),满足 y0 f ( x0 )

Fx dy dx Fy

隐函数的求导公式

隐函数求导公式的推导 求复合函数

F ( x, y) F ( x, f ( x)) 0的全导数,即得

由Fy 连续,且 Fy ( x0 , y0 ) 0 故存在点 ( x0 , y0 ) 的一邻域,使得在其上Fy 0 从而

dy Fx Fy 0 dx

8-12 Cool Clive

Chapter 1

Look at the other kids in my class. They have the right haircuts.

They have the right clothes-the jeans,the t-shirts,the caps and the trainers. These are my friends.

They may think I'm not all that big.

They may think I'm not all that bright.But I know I'm really cool.The trouble is my clothes are just not cool at all.

\

\

My mum says,

Just be yourself What you wear doesn't matter. She is right you know

Blackbones Saves the School布莱克博恩拯救学校

Part 1

It was the first day of term at Abbey Park School. Class 4 sat in the neat rows. They sat up straight. Nobody talked or picked their nose. The Head, Miss Lupin, had told them to wait quietly for their new teacher.

Suddenly the door flew open. The new teacher strode in .He had a black patch over one eye and a sword at his belt. His beard hung in thick dark curls.

‘Ahoy, mates! The name’s Blackbones , Captain Blackbones!’ he bellowed. Blackbones sat down on top of his desk. He kicke

篇一：典范7-4《哦!奥托》

典范英语7-4 《哦！奥托！》

1、重要的事情

在四班的孩子们都忙于工作的时候，他们的老师安德伍德小姐说：“我有很重要的事情告诉你们。”她笑着说：“一个新来的男孩到我们班来了。他的名字是奥托，他来自遥远的远方，事实上，他是从外太空??”（这是奥托在地球学校的第一天，他就在这里??）门开了，一个男孩进来了。他看起来和其他孩子们一样，但他是一个不同的颜色的人，他是绿色的。安德伍照顾我们新来的男孩德小姐告诉奥托，叫他和乔，查利和乔希坐在一起。然后她看着乔补充了一句：“我要你在他需要帮助的时候帮助他。”“拜托，老师，”奥托说。“我并不是新的，我七岁半了，我不需要手。看，我有两只手！”“哦，奥托！”安德伍德笑了。“坐下来，做个乖孩子。”奥托就坐了下来。他说，“我认为我不能成为一只鹿??但是我能像鸭子一样嘎嘎叫。”他像翅膀一样挥动双臂然后开始：“嘎嘎！嘎嘎！嘎嘎！的叫。”查利加了进来：“嘎嘎！嘎嘎！嘎嘎！”安德伍德小姐冲奥托微笑着说：“不要在教室里面嘎嘎叫。”然后她对查利皱起了眉头说：“查利，这个你更懂得！继续你的工作。”“太不公平了。”查利抱怨的说，“我陷入了麻烦，那个男孩却相安无事。”那个时候，查利决定不喜欢奥托，他一点都不喜

Answers to the exercises in Unit 8

II. Paraphrase.

1.People spend much of their life time trying hard to keep things in good shape. They think a

product, after leaving its factory, should last at least for a reasonably long period before ceasing to work.

2. Quality-control instruments and testing devices are also governed by Murphy's Law, so they are not reliable.

3. Look at the artifacts of the pre-industrial era exhibited in a museum and you will see that technology is not the factor that decided the quality of these items.

4.

Here comes trouble

Chapter 1

On Friday afternoon Class Seven had an Art lesson. It was their favourite lesson of the week. Everyone looked forward to it. Everyone except Trudy Hubble. Trudy had elbows that stuck out and knocked things over. Her hands were large and clumsy. Her feet were so big she was always tripping over things.

When she came into the classroom Rob Mason said, ‘Look out, here

comes Trouble!’

This was Rob’s idea of a joke. He called her ‘Trouble’ because it sounded like her two names—Trudy Hubble—pu

Here comes trouble

Chapter 1

On Friday afternoon Class Seven had an Art lesson. It was their favourite lesson of the week. Everyone looked forward to it. Everyone except Trudy Hubble. Trudy had elbows that stuck out and knocked things over. Her hands were large and clumsy. Her feet were so big she was always tripping over things.

When she came into the classroom Rob Mason said, ‘Look out, here

comes Trouble!’

This was Rob’s idea of a joke. He called her ‘Trouble’ because it sounded like her two names—Trudy Hubble—pu

篇一：典范英语7 17翻译

介绍

这是故事的劳拉·英格尔·瓦德所著的是大约120年前在美国长大的。

她的父亲喜欢探索新的地方先锋。这意味着他们不得不让新房在每个不同的国家他带他们去。 美国是一个野生的地方在那些日子里,这就是为什么劳拉有许多冒险。

我告诉过你关于夜狼嚎叫起来吗?

我们一起坐在小房子的日志。外面,狼坐在一个圆圈在房子周围。我们唯一的门是一个被子!是的,被子从床上。这是我们之间唯一和狼。

但我最好开始开始。

第一章:我们的小房子在大森林里

我出生在威斯康辛州,美国,1867年2月7日。

我们住在一个小木房中间的大森林。有爸爸,妈妈,我的姐姐玛丽伊丽莎白和我,劳拉·英格尔斯。我的妹妹,凯莉和优雅,出生以后。

最重要的一个家族成员是杰克,我们的狗。我爱他。他和爸爸去打猎,我们回家吃饭。他是我们的看门狗。

大森林是危险的。有熊和美洲豹。这是一个狂野的地方。

马英九曾经打了一头熊!它是黑暗和下雪。马云认为熊是茶水壶,我们的牛。她喊道“克服熊。,

然后我们不得不跑!我们很幸运安全地回到家里和摒弃。熊是危险的但是这只熊一样惊讶。 玛丽和我帮助马在房子周围。没有商店。我们不得不做出一切。

你能猜出我们如何有糖吗?我们从枫树排水树汁和煮它。然后我们把它倒进锅变硬糖饼。 然而