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fantastic completely grandchild
female milkweed chemical
puzzling/puzzled freeze
draw one's attention(引起某人的注意）
lay eggs (产卵）
Read and answer questions
1 What does Dr. Chip Taylor teach at university?
2 What does he study?
3 How far does the butterfly travel south in fall?
4 What draws Dr. Taylor's attention?
5 What are the fantastic facts about the butterflies?
6 What makes Dr.Taylor worry about?
7 What things can't scientists understand about the butterflies?
8 Would you like to study biology?/Why?
Practice
1 Ask the students to listen to the tape.
2 Ask the students to read the lesson again and finish exercise1 in"Let's do it."
Language points
1 lay---laid----laid (产卵、下蛋）
The hen laid two eggs yesterday.
2 puzzling/puzzled(令人迷惑的）
The question is puzzling.
I feel puzzled about his puzzling answer.
3 draw one's attention(引起某人的注意）
What he did has drawn my attention.
Practice
1 He ______(躺在床上）and listening to music.
2 Bob _____(撒谎）to his mother last week。
3 The hen____（下蛋）4 eggs last week.
4 He is ____(interest) in biology because he thinks it is____(interest).