Reading passages

 235- It is stated in the passage that in the countries where cigarette smoking has a long history 
.............. . 
A) most deaths of lung cancer sufferers are largely due to that habit 
B) innovative methods have been devised to break the habit 
C) heavy smokers are alleged to be more likely to develop lung cancer than light ones 
D) it is impossible to see someone who is a lung cancer sufferer 
E) the young are urged not to smoke by ads and public announcements 
236- Passive inhalation ................... . 
A) is considered as one of the most significant factors of lung cancer 
B) used to cause more deaths previously than it does now 
C) has nothing to do with those who smoke in public places 
D) is thought to be responsible for two percent of the deaths of lung cancer sufferers 

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90 
E) might be avoided if one doesn‘t enter in places where people smoke 
237- From the figures in the passage, it can be determined that ............ . 
A) no one older than 75 die because they have lung cancer 
B) almost 85 percent of lung cancer sufferers are affected by just cigarette smoke 
C) on average, each year some 150,000 people die of lung cancer 
D) some 2800 people are affected by passive inhalation in USA 
E) lung cancer deaths were far more common in 1990s than ever before 
The Gulf Stream is part of a general clockwise rotating system of currents in the North Atlantic. It is 
fed by the westward-flowing North Equatorial Current moving from North Africa to the West Indies. 
It was first described by the Spanish navigator and explorer Juan Ponce de León early in the 16th
century. In 1844 systematic surveying of the stream was begun. The marine organisms of the Gulf 
Stream system are not of great commercial value. Its warm waters, however, in mingling with the 
colder waters both on the Grand Banks and off north-western Europe, contribute to turbulence and 
the availability of nutrient salts that made these regions amongst the most productive commercial 
fishing grounds in the world until they were overfished in the 1980s and early '90s.