7. base on/ base sth on sth 把…建立在…的基础之上

　 We base our hopes on the good news we had yesterday.

6. group plants in families ( 动植物的)科

　 We can group animal into several types.

5. classify …. into 把．．编排，分类

e.g. 　Children in school are classified into grades.

　　 Eggs are classified according to size.

4. make attempt to do sth　 尝试着做…

e.g. he made no attempt to take a medical degree.

　　 we failed in our attempt to climb the mountain.

1. according to 根据… 2. whether they have flowers or not　 是否… 3. at first sight. 第一眼，乍看

7.　　　 Give at least three examples to show Banks great contribution to his country and science

Key: various answers are available.

D. reading the material 　paragraph by paragraph.

　P1.

6.　　　 Why was Carl Linnaeus important to the history of botany as a science?

Key: Because his work was a breakthrough in botany. His idea of grouping plants in families was unique. Before him other　 scientists tried to give each species two names, but names were not truly fixed and accepted.

5.　　　 What could be a possible explanation for the name “strawberry”?

Key:　 When people plant strawberry, they spread straw under the fruit to reduce the necessary amount of the watering as straw prevents the water in the soil escaping

4.　　　 How did the word “appetite” in the third paragraph mean?

Key: it means “ a desire or wish”

3.　　　 how did scientists classify plants before Linnaeus? How did Linnaeus do this?

Key: Some scientists classified plants into herbs and trees , or according to the shape of the plant, or whether they had flowers or not. Linnaeus grouped plants in families. In his system the identification of different species was based on the arrangement of the male and female organs in the flowers.