Page 214 - Hướng Dẫn Viết Đúng Ngữ Pháp Tiếng Anh

7. Parallel structure 8. after
9. to go swimming 10. Unanimously decided to ig­
nore it

Cau lioi trac ligliiem

1. d 2. a 3. c 4. c 5. b
6. d 7. a 8. a 9. d 10. d

Bai tap uaug cao

Se co nhieu dap an khac nhau; dtfdi day la mot sd gdi y.
1. Not only does lightning often strike twice in the same place, but it
is also more likely to do so. Why is this so? Lightning is an electric
current. As with all electric currents or discharges, lightning will
follow the path of least resistance, so it will take the route that is
easiest for it to travel on. Since air is a very poor conductor of
electricity, almost anything else that helps to bridge the gap be­
tween the ground and a cloud— a high tree, a building (especially
one with a metal framework), a tall hill— will offer a more conve­
nient path and thus “attract” the lightning.
2. In 1866, John Styth Pemberton came up with a headache medicine
he called “Coca-Cola.” He had taken the wine out of the French
Wine Coca and added some caffeine, but the medicine tasted so
terrible that at the last minute he added some extract of kola nut
and a few other oils. He sold it to soda fountains in used bottles. A
few weeks later, a man with a terrible headache hauled himself
into a drugstore and asked for a spoonful of Coca-Cola. The drug­
gist was too lazy to stir the headache remedy into a glass of water,
so he mixed the syrup in some seltzer water because it was closer
to where he was standing. The customer liked the carbonated ver­
sion better than the uncarbonated one; other customers agreed.
From then on, Coca-Cola was served as a carbonated drink.
3. Some time near the beginning of the seventh century, a monk
formed some leftover dough into a looped twist. Some sources
claim that the twists were meant to represent the folded arms of

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