Unit 7 The Secret of memory

Section 1 Experiencing and understanding language
(P102)
1.(1) live a mentally active life
(2) Play brain games
(3) Use techniques like memory linking
(4) live a healthy life
(5) healthy eating habits
(6)Do regular physical exercise
(7) Get enough sleep
(8) Get plenty of rest
(9) Don't get too stressed or worried
2.(1) You can try new things like playing a new instrument or learning a foreign language, play brain games such as crosswords, word games and maths puzzles, and use techniques like memory linking.
(2) If you get too stressed or worried, your memory will become less sharp.
(3)So, how can you improve your memory?

(P103)
1.(1)mentally (2) maintain (3) relax (4)tends (5) normal
2.(1) tend (2)stressed (3)mentally (4) relax(5) maintain

Section 2 Exploring and applying rules
(P105)
1.(1)b (2)c (3)e (4)a (5)d

(P106)
2.(1) Unless it rains, I'll go for a picnic with my friends on Saturday.
(2) Unless I have some better ideas, I'm going to make a birthday card for my mother.
(3) Unless I'm too tired on Saturday evening, I'll finish reading Romance of the Three Kingdoms.
(4) Unless my mother's birthday party ends too late, I'Il help Su Mei practise English.

Section 4 Extending and developing competencies
(P111)
2.(1) learn about the climate and the environment
(2) Scientists study tree rings to learn about the climate and the environment.
(3)study natural disasters
(4) Scientists look at tree rings to study natural disasters.
(5)understand human history
(6) Scientists can use tree ring patterns to learn the age of old buildings and figure out exactly when a tree was cut down.
3.(1)c (2)a (3)e (4)d (5)b