Every day, people invent new things. Some inventors work hard for years to create something new. But some of the best inventions happen by accident.

Can you imagine a world without chocolate chip cookies? Back in 1930, Ruth Wakefield and her husband opened a restaurant in Massachusetts. It was called the Toll House Inn. Ruth worked as the cook. The restaurant held 30 guests. Ruth often had to rush to feed them all on time.

One day, Ruth was mixing up some chocolate cookies in the kitchen. The recipe said to melt (融化) squares of chocolate. The next step was to pour (倾倒) the melted chocolate into the pale cookie batter (面糊).

You have to melt chocolate slowly or it will burn. Ruth was in a hurry. She decided to break the chocolate squares into little pieces. Then she threw the pieces into the batter. After all, the cookies had to be put into a hot oven (烤箱). She thought the chocolate would just melt into the rest of the batter.

When she took the cookies out of the oven, she could still see big pieces of chocolate. She could never serve these to her guests!

Then, Ruth tasted the cookies. They were delicious! Her guests agreed.

Ruth began buying lots of chocolate and cutting it up. Then she asked the candy makers if they could make the chocolate easier to break into small pieces. That’s when they came up with chocolate chips.

Thanks to Ruth Wakefield, today you can find “Toll House” cookies in every food market. But none of them tastes as good as a homemade chocolate chip cookie, hot from the oven.

Carrots are grown on farms and in small family gardens all over the world. They are easy to plant and easy to harvest (收获). They have a good taste.

When people think about carrots, a picture of a long, thin, orange-colored vegetable usually comes into their minds. But carrots come in many different sizes and shapes. And not all carrots are orange.

Carrots should be grown in sandy soil that does not hold water for a long time. The earth also should not be too hard. To prepare your carrot garden, dig up the earth and turn it over.

Weather, soil, condition and time influence the taste of carrots. Warm days and cool nights are the best time to grow great delicious carrots.

The best way to decide if a carrot is ready to be harvested is by its color. Usually, the brighter the color is, the better the taste is.

Most people do not know that carrots can be grown during the winter months. If the winter is not cold enough to freeze the ground, you can grow and harvest carrots the same way as you do during the summer months.

Carrots are prepared and eaten in many different ways. They are cut into thin pieces and cooked with other vegetables or meat. Or, they are washed, and eaten just as they come out of the ground.