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unit 1¡¡health¡¡1
text a¡¡a serious problem for child athlete¡¡2
text b¡¡nicotine¡¡8
text c¡¡main energies for the body¡¡12

unit 2¡¡biology¡¡21
text a¡¡climate change will hit genetic diversity¡¡22
text b¡¡gene-therapy enzymes make unpredicted errors¡¡29
text c¡¡could stem cells recuse an endangered species?¡¡33

unit 3¡¡ building academic vocabulary¡¡40

unit 4¡¡informantion science¡¡55
text a¡¡siri, why aren¡¯t you smarter?¡¡56
text b¡¡google closes in on doubleclick deal¡¡62
text c¡¡selling expertise on the internet for extra cash¡¡68

unit 5¡¡space¡¡76
text a¡¡shuttle¡¯s end spells change at nasa¡¡77
text b¡¡commercial space flight is a game-changer¡¡83
text c¡¡let¡¯s mine asteroids¡ª¡ªfor science and profit¡¡88

unit 6¡¡reading academic papers¡¡95

unit 7¡¡psychology¡¡109
text a¡¡opting out of overoptimism¡¡110
text b¡¡using the mind to fight diseases¡¡117
text c¡¡dreams¡¡122

unit 8¡¡new-tech¡¡ 129
text a¡¡bloomberg terminal¡¡130
text b¡¡imax¡¡137
text c¡¡bloomberg¡¯s plan for world domination¡¡141

unit 9¡¡ doing academic research¡¡146

unit 10¡¡ecology¡¡ 154
text a¡¡us launches eco-network¡¡155
text b¡¡can we replant the planet¡¯s rainforests?¡¡162
text c¡¡to save trees, fighting one alien insect with others¡¡168

unit 11¡¡business administration¡¡175
text a¡¡dropping shopping¡¡176
text b¡¡the business of survival¡¡184
text c¡¡workers earn money on the job for losing weight¡¡190

unit 12¡¡reporting academic work¡¡196

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