I. Decide whether the following statements are true (T) or false (F) according to the text. 根据课文判断下列陈述是否正确。 1. Paul’s first chemistry teacher is a tall handsome man. ( ) 2. The teacher made the mixture with petrol, castor oil and vinegar. ( ) 3. The students watched the teacher carefully when he was doing his experiment. ( ) 4. The teacher dipped his finger into the mixture and tasted it. ( ) 5.The students dipped their fingers into the mixture and tasted it. ( ) 6. The teacher didn’t actually taste the mixture. ( ) 7. Paul thinks this chemistry lesson is boring. ( )