Unit 4 The Professor and the Yo-Yo I.Teaching Aims 1.Enlarge the students'vocabulary by learning the new words and doing the vocabulary exercises 2.Help the studentsto get the general idea of the article 3.Help the students learn from Einstein. 4.Help the students to build up their language skills through more exercises on oral practice,phrases and expression,grammar,writing.etc. II.Key and Difficult Points 1.New Words and Phrases at ease,off balance,come to terms with,immune,correspond,mean nothing to,so much so that,revert to,take apart,bewilder,single out 2.Sentences (1)As a shy young visitor to Einstein's home.I was made to feel at ease when Einstein said,… (2)When my turn came,I displayed my few tricks and pointed out to him that the incorrectly looped string had thrown the toy off balance. (3)As a boy and then as an adult.I never lost my wonder at the personality that was Einstein. (4)He seemed immune to these emotions.He was beyond any pretension. (5)He had developed theories that were profound and capable of exciting relatively few scientists III.Teaching Methods Discussion,explanation,ask and answer IV.Time:4 periods V.Teaching Procedures: Unit 4 The Professor and the Yo-Yo I. Teaching Aims 1. Enlarge the students’ vocabulary by learning the new words and doing the vocabulary exercises. 2. Help the students to get the general idea of the article. 3. Help the students learn from Einstein. 4. Help the students to build up their language skills through more exercises on oral practice, phrases and expression, grammar, writing, etc. II. Key and Difficult Points 1. New Words and Phrases at ease, off balance, come to terms with, immune, correspond, mean nothing to, so much so that, revert to, take apart, bewilder, single out 2. Sentences (1) As a shy young visitor to Einstein’s home, I was made to feel at ease when Einstein said, … (2) When my turn came, I displayed my few tricks and pointed out to him that the incorrectly looped string had thrown the toy off balance. (3) As a boy and then as an adult, I never lost my wonder at the personality that was Einstein. (4) He seemed immune to these emotions. He was beyond any pretension. (5) He had developed theories that were profound and capable of exciting relatively few scientists. III. Teaching Methods Discussion, explanation, ask and answer IV. Time: 4 periods V. Teaching Procedures: