1 . One of the main prehistory (史前的) human food is milk. In the years long ago, people got their milk from their own animals. But in modern times, new inventions made the milk industry a big business.
In 1851, Gall Bouden found a way to take some of the water from milk. 1.This made milk keep longer. A few years later, Louis Peter introduced a way to kill the bacteria (细菌) in milk. Next a special milk bottle (瓶子) was made. 2.Then machines that could fill bottles with milk were invented. These inventions show that milk has been important food for a long time. And it will probably go on to be so as long as there are animals that give milk.
将划线部分的句子翻译成汉语。
1.
2.
Students often have some difficulties in learning some subjects. Some think they will never learn English well and others think physics is the most difficult thing in the world. In fact, 1. not everyone is born with the ability to learn something well. Someone is good at chemistry and someone does well in history. You must know that people are different. So you don’t have to be worried if you can’t learn some subjects well. Please accept the fact and find ways to solve the problem.
Here are some good ideas to help you.
First, connect what you learn with your interests. Some knowledge is difficult and boring. But 2.if it is connected with something interesting, you will find it not boring anymore. For example, if you want to learn Chinese well, you can read good novels.
1.2.
Rain is falling all around,
It falls on field and tree,
It rains on the umbrella here,
And on the ships at sea.
译文：
Forget about the days when it's been cloudy. But don't forget your hours in the sun.
Forget about the times you have been defeated.（打败）But don't forget the victories you have won.
Forget about the misfortunes（不幸）you have encountered. But don't forget the times your luck has turned.
Forget about the days when you have been lonely. But don't forget the friendly smiles you have seen.
Forget about the plans that didn’t seem to work out right. But don't forget to always have a dream.
译文 ：
For if dreams die
Life is a broken-winged bird
That can never fly.
Hold fast to dreams
For when dreams go
Life is a barren（贫瘠的） field
Frozen only with snow将诗歌翻译成汉语:
