Einstein was born in 1879 in Germany. As a child he was slow to talk. But when he was 14 years old, he became clever. He taught himself maths from text books. He studied hard because he wanted to be a physicist (物理学家).

    In 1901, Einstein began teaching. In 1902, he went on with his study at the University of Zurich. Several years later, he put forward (提出)his Theory of Relativity(相对论).

    To most people the Theory of Relativity is hard to explain. But once Einstein explained it very well to a group of young students. He said:" When you sit with a good girl for two hours, you think it is only a minute, But when you sit on a hot fire for a minute, you think it's two hours. That's relativity".

    Later Einstein went to America and never left there. His life ended at the age of 76.

    It seems very natural that if you have two dollars and add two dollars to them, you have four dollars. But do you know it too men millions of years to be able to think so? In fact, one of the most difficult things to teach children is the idea of numbers.

    In ancient times, when a man wanted to tell how many animals he owned. he had no system(系统) of numbers to use. He put a stone into a bag for each animal. The more animals, the more stones he had. It may explain why the word "calculate" comes from the Latin word "calculus", "calculus" means "stone."

    Then, man used lines to count. People would just draw a line for each thing they wanted to count, but they had no word to tell the number.

    Later on, people used fingers. Again we have word that goes back to this. The word "digit" comes from the Latin word "digitus". It means "finger"! And the fact that we have 10 fingers led to the use of 10 in the system of numbers.

    The number system we use today was invented by the Hindus in India thousands of years ago and was brought to Europe during 8^th to 11^th by Arab traders(商人). In this system, people count things with ten numbers. 1. 2.3.4.5.6.7.8.9.and 0. It is decimal system(十进制), that is, it is built on the base of 10.

In 1992, Zhang Zhiqiang was b____ with no arms in a small village in Shandong Province. With hard ____ /'præktis/, he could do many things with his feet when he grew up. He learned to wash clothes, cook meals and do farm work. He said, "If I want to live like others, I have to try my best. (A) 每个人都有学习的能力。 No matter how many difficulties I have, I will go out of my way to face them."

(B) smartphone, him, a, brother, his, bought. He thought it was so useful and decided to learn it. He managed to press its button with his toe tips (脚尖) . The Internet connected him with the outside world. He had an idea when he knew the local farm products couldn't be sold out of mountains. 

In 2015, he opened an online store which sold farm products. (C) When his business got successful, he decided to help other villagers. At first, few of them trusted him because they didn't know what an online store was. With his effort, the products were popular online. And more villagers came to ask him for help. Later, he decided to sell their products on short videos It was a great success and he won himself many followers. He has created a good life for himself and the villagers. 

Zhang's story shows that nothing can stop us from achieving our dreams if we put our hearts into it. We can also fly even without wings because we have a brave and strong heart. 

Hello, I'm Peppa. I'm a lovely pig. Here is a nice1 of my family on the wall.

Look! I wear a red dress( 裙 子 ). I like jumping in muddy puddles(泥坑). These are my parents, Daddy Pig and Mummy Pig.

Daddy Pig wears glasses. He loves sitting on the2 and watching TV. Mummy Pig often works on her computer. She is very nice. That is my younger 3 . His name is George. I love

George very much. I love my father and mother, 4   . My grandparents are not in the photo. I love visiting( 拜 访 ) them because my Granny Pig always makes cake for me!

My mother is 5 , but I'm not. In my mother's room, the 6 are in the bookcase. But in my 7 , books are everywhere--on the chair, on the desk and under the bookcase. If I can't find my things, I always ask my mother8 help. Yesterday(昨天)，she 9 a set of keys in my room. And she asked me, "Are these your keys?" I said no. Now I10 they are my grandmother's. She lost her keys yesterday.

In our kitchen, there's a wooden table and three chairs. The chair for my dad is always1 . Thanks' Giving Day is coming. How can I be thankful without my dad? Every night I go to sleep, whispering," Maybe tomorrow, maybe tomorrow."

That morning, the smell of coffee 2 me up. I run into the kitchen. There he is. Dad lifts me onto his shoulders." How's my boy? You've got so big that I can 3 . I' ll you up anymore."

Mum says she's going to make an apple ple for dad's homecoming dinner." Go to the shelf and get that Jar of apples for me, please. Jimmy." That's the 4 jar of apples on shelf. Every time I passed the shelf, I looked at the Jar.5 for dad to come home earlier. My mouth waters just at the word apple.

I take the jar from the shelf and run to my dad and mum, so 6 to be with them. But then ! studio(绊倒) and 7 . When I put out my hand to steady myself, the jar drops through my8 . It is broken, and bits of apple fly everywhere.

Then I hear my mum's steps and 9 ." Are you hurt?" She checks me for cuts. That's the last jar we've been saving to welcome dad home with weeks of no dessert. I want her to shout at me, but all she said was " Don't worry. I am going to make my Mama Sugar Pie 10 apple."