step by step 第二册 lesson 30（在线收听）
Lesson 70 Part Ⅰ
Lesson 70
Part Ⅰ Warming-up Exercises
Sentence Structure
1.a.Jeff is happy that he married Nancy.
b. Nancy's family likes Jeff.
c. Jeff's family approved of his marrying Nancy.
2.a.Mr.Johnson's nephew owns a business.
b. Mr. Johnson and his son are going into business together.
c .Mr. Johnson hopes that he and his nephew will go into business together.
3.a.Ann wants us to meet her.
b. We met Ann at the bus station.
c .Ann met us at the bus station.
4.a.Pat went to the party with John.
b. Pat did not go to the party.
c. John was invited to Pat's party.
5.a.Bill was very proud when he graduated.
b. Bill was very proud of his sister.
c .When Bill graduated, his sister was very proud of him.
6.a.James' mother was at work when he got home.
b. James went to work while his mother stayed home.
c. James' mother works at home.
7.a.Sally let her sister use her bicycle.
b. Sally's sister lent her a bicycle.
c. Sally borrowed a bicycle for her sister.
8.a.Paul would like his wife to finish her education.
b. Paul's wife would like to finish her education.
c. Paul would like to finish his education.
Score: ____
Lesson 70 Part Ⅱ Dolphins Exercises: Ⅰ.1.____Dolphins are a kind of fish living in the ocean. 2.____Many different sounds made by dolphins are like human sounds. 3.____People are unable to hear some of the highpitched sounds made by dolphins. 4.____Dolphins and human beings have a similar ability to remember sounds. 5.____Scientists are now able to analyze the language of dolphins. 6.____Dolphins can move very fast because of the special quality of their skin. 7.____Dolphins are excellent swimmers. 8.____The study of the body shape and movement of dolphins has proved useful in the ship building industry and the making of airplanes. Ⅱ.Tell why you have decided that some of the statements in Ex. I are true and some are false. Lesson 70 Part Ⅲ TheGiant Of The Sea Lesson 70 Part Ⅲ The Giant Of The Sea Exercises: 1.size----class----kinds----life-span 2.teeth----baleen----nose----eyes----ears----skin----blubber 3.ways of detection----ways of communication 4.intelligence----temperament 5.enemies
Lesson 70 Part Ⅱ Dolphins
