Cruz said the speed of the present build up of

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Cruz, said the speed of the present build-up of greenhouse gases is far greaterthan during the global warming after the (3).......of the dinosaurs. "Theemissions that caused this past episode of global warming probably lasted10,000 years," Professor Zachos told the American Association for theAdvancement of Science at a meeting in St. Louis. "By burning fossil fuels, weare likely to emit the same amount over the next three centuries." He warnedthat studies of global warming events in the geological past (4).....". the Earth'sclimate passes a (5)......beyond which climate change accelerates with the helpof positive feedbacks - vicious circles of warming.Professor Zachos is a leading (6)......on the episode of global warming known
as the palaeocene-eocene thermal maximum, when average global temperituresincreased by up to 50C due to a massive release of carbon dioxide and methane.His research into the deep ocean (7)......suggests at this time that about 4.5billion tons of carbon entered the atmosphere over 10,000 years. "This will bethe same amount of carbon released into the atmosphere from cars andindustrial emissions over the next 300 years if present (8)......continue," he said.Although carbon can be released suddenly and naturally into the atmospherefrom volcanic activity, it takes many thousands of years for it to be removedpermanently by natural processes. The ocean is capable of removing carbon,and quickly, but this natural (9)......an be easily (10)......which is probably whathappened 55 million years ago. "It will take tens of thousands of years beforeatmospheric carbon dioxide comes down to pre-industrial levels," the professorsaid. "Even after humans stop burning fossil fuels, the effects will be long-lasting."1. A. prearrangedB. premierC. previousD. fundamental2. A. emittedB. exhaledC. incorporatedD. digested3. A. dementiaB. demolitionC. detachmentD. demise4. A. commentB. markC. complimentD. indicate5. A. barricadeB. vergeC. thresholdD. perimeter6. A. autocratB. authorityC. administratorD. proprietor7. A. dustsB. sedimentsC. dirtD. powder8. A. trendsB. gadgetsC. fadsD. crazes9. A. capacityB. competenceC. intelligenceD. bulkThẩm Tâm VyENRICHING YOUR VOCABULARYLESSON2
10. A. overchargedB. overstatedC. overshadowedD. overwhelmed
B.Fill the gaps in the following sentences with the correct answer A, B, C,or D.
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It, Th m T m Vy

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