必修3
Unit 5 Canada—“The True North”
能力演练
一、语法填空 Investigators were testing the effects of different colored walls on two groups of visitors to an exhibit of paintings.For the first group the room 1 (paint)white; for the second,dark brown. 2 (move)of each group was followed by 3 electrical system under the carpet.The experiment showed that those 4 entered the dark brown room walked more quickly,covered more area,and spend 5 (little)time in the room than the people in the white environment.Dark brown stimulated more activity, 6 the activity ended sooner.Another experiment presented three groups of subjects 7 the sa |