Some scientists rank the greenhouse effect with nuclear war and the population explosion because _____ .

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• 1The two major consequences of a warmer climate for the world are _____ .

  A.the automobile and heavy industry would speed up the release of carbon dioxide and dangers would take place throughout the world

  B.many port cities would look as beautiful as Venice and some areas would become too hot to grow plants

  C.the ice caps would melt swiftly and the desert Sahel area would get more rain

  D.coastal cities would be flooded due to the rise of oceans and ways of drought and rainfall would be changed on a global basis

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• 2The“Greenhouse effect”is so called because _____ .

  A.fossil fuels are burnt in green houses

  B.a carbon dioxide is causing the Earth to warm up

  C.the world′s climate has become tropical by the penetration of the sunlight

  D.the sun′s rays are trapped by the glass in the greenhouse

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• 3In the first paragraph,the phrase“counted on” means _____ .

  A.hoped

  B.wished

  C.expected

  D.accounted

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• 4The main idea for this passage is:

  A.Our future world will be very different from today′s world.

  B.Farmwork will be largely automated and computerized in the future.

  C.There will be more office jobs and fewer factory jobs in the furure.

  D.B.Farmwork will be largely automated and computerized in the futur

  E.C.There will be more office jobs and fewer factory jobs in the furure.D.New technology will create many new jobs and professions and will make many old ones outdated.

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• 5The two major developments have promoted the office revolution.They are _____ .

  A.paperless work and technical skills

  B.computers and telecommunications systems and products

  C.automatic factories and industrial states

  D.automation and the reduction of lowskilled and semiskilled workers

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