一、[新情境·自然生态]Read and choose A, B, C or D.
Chencun New Year Mandarin Orange(陈村年桔)is famous in Foshan. Follow the arrows(箭头)to learn about a Chencun New Year Mandarin Orange tree’s life cycle.

1. ()
2. ()
3. ()
4. ()

A. The plant grows. Roots grow into the soil. A stem pushes out(挤出)of the ground. The plant is a seedling(幼苗).
B. A seed is planted. Its shell is hard. A seed needs soil to grow in. It needs water and sunlight too.
C. New seeds are made. The adult(成年的)tree grows fruit. The fruit contains(包含)seeds. The cycle can start again.
D. The seed sprouts(发芽). The shell of a seed breaks open. Roots and a stem come out. This is called germination(萌发).
能力培优

1. B
2. D
3. A
4. C

二、Read and finish.
The History of Chocolate
At first, people didn’t eat chocolate. But they used cocoa beans!

Later, more and more people began to make chocolate. They ground(研磨) cocoa beans into powder(粉末), and then mixed it with hot water to make a drink.


Chocolate came from Central America(中美洲). It was first popular in Europe. In the 1800s, chocolate became a popular snack in many countries.
Now, chocolate is popular all over the world. There is dark chocolate, milk chocolate, white chocolate... There’s really a chocolate for everyone! Some people cook with chocolate. They make chocolate cake, chocolate ice cream, and even chocolate-covered fruit!

Task 1: Read and choose T or F.
()1. People didn’t eat chocolate at first.
()2. Chocolate was first popular in the USA.
()3. Now, we can only eat chocolate in the USA.
()4. We can cook with chocolate now.
Task 2: Read and answer.
5. Can we eat much chocolate every day? Why?

1. T
2. F
3. F
4. T
5. No, we can't. It's sweet. It's not good for our health.(仅供参考)