UNIT1 STRANGERS UNIT2 UFOS UNIT3 OVERSEAS STUDY UNIT4 LAUGHTER:THE BEST MEDICINE UNIT5 NEIGHBOURS UNIT6 FINDERS KEEPERS UNIT7 THE SKEPTICAL MIND UNIT8 HEROES IN EDUCATION UNIT9 ROLE MODELS UNIT10 PLASTIC SURGERY UNIT11 SPEED DATING UNIT12 DIVORCE UNIT13 MAN VS.MACHINE UNIT14 CLONING TSET1 TEST2 APPENDIX