Kỳ thi lập đội tuyển dự thi chọn học sinh giỏi quốc gia lớp 12 năm học 2008-2009

- less than that for any other planet. 
The most famous mark on Jupiter is the Great Red Spot. It has shown variations in both intensity and color, and at times it has been invisible, but it always returns after a few years. At its greatest extent it may be 40.000 kilometers long and 14.000 kilometers wide, so its surface area is greater than that of the Earth. Though the latitude of the Red Spot varies a little, it drifts about in longitude. Over the past century, the total longitudinal drift has amounted to approximately 12.000. The latitude is generally very close to -220. It was once thought that the Red Spot might be a solid or semisolid body floating in Jupiter’s outer gas. However, the Pioneer and Voyager results have refuted that idea and proven the Red Spot to be a phenomenon of Jovian meteorology. Its longevity may well be due to its exceptional size, but there are signs that it is decreasing in size, and it may not be permanent. Several smaller red spots have been seen occasionally but have not lasted.
1. According to the passage, Jupiter has the shortest day among the principal planets because
A. its rotation period is shorter than 10 hours
B. the axial inclination is only just over 30
C. it is on the average the brightest of all the planets
D. There is the interference of the Great Red Spot
2. The author’s tone in this passage is 	
A. argumentative	B. supportive	C. enthusiastic	D. neutral
3. According to the passage, Mars outshine Jupiter
A. on a regular basis	B. from time to time	
C. every several months	D. less often than any other planet
4. This passage would be of most interest to 
A. students of anthropology	B. geologists
C. mathematicians	D. amateur astronomers
5. It can be inferred from this passage that Jupiter’s Great Red Spot
A. will become brighter with time	B. will one day vanish
C. will continue expanding 	D. is made of floating gases
Part 3. Read the text below and decide which answer (A, B, C or D) best fits each space. (2 points)
A team of experts has arrived in Venice to save it from increasing incidences of flooding. A controversial plan to construct a barrier with 79 gates, each weighing 300 tons, has been given permission to go ahead. Once constructed, this will be (1) ______________ whenever a high tide (2) ____________ to cover the city.
Everyone has known for centuries that Venice is sinking further into the mud, but floods are becoming a regular nuisance. Rising sea levels have gradually (3) __________ the salt marshes and mud-banks, that stood between the city and the Adriatic. Winter storms cause higher waves, which are (4) ____________ the walls of the old palaces.
But there are fears about how the building of such a barrier might affect the Venice lagoon, particularly the possibility that it could further (5) _____________ the flushing of the city’s waterways by the tide, making the famous foul-smelling canals even more (6) ___________.
To avoid making a bad situation worse, the experts have been (7) ____________ . To analyze tidal flows, marine plants and sediment deposits and then suggest ways to prevent the city becoming the first high-profile (8) ___________ of global warming and rising sea levels.
But with global warming (9) ____________to add at least half meter to the sea level this century, the situation is bound to (10) __________. A spokesman for the team said, “We cannot hope to stop Venice submerging eventually, but we can slow the whole process down and so enjoy the city for a while longer”.
A. erected	B. raised	C. lifted	D. installed
A. threatens	B. endangers	C. risks	D. jeopardizes
A. eroded	B. worn	C. corrupted	D. broken
A. offending	B. crashing	C. assaulting	D. opposing
A. delay	B. direct	C. restrict	D. impose
A. motionless	B. stationary	C. inactive	D. stagnant
A. asked over	B. brought in	C. called up	D. taken on
A. victim	B. target	C. sufferer	D. subject
A. believed	B. imagined	C. expected	D. supposed
A. destabilize	B. deflate	C. detract	D. deteriorate
Part 4. Fill in each numbered space with ONE appropriate word: (1 point)
By the time we reached the town centre it was packed (1) ________ people getting their shopping done. Trees decorated with colored lights blinked at every corner and if I hadn’t known about the centenary (2) _____________, I would have thought it was Christmas. Banners had been stretched across the street proclaiming “MARSHLAND NEW TOWN- THE FIRST HUNDRED YEARS”, as if the shoppers needed to (3) ________________ reminded. Nothing else had been (4) ___________ of in the town for weeks. Committees had been formed and everyday more and more money was being collected by local schoolchildren selling flags and buttons. Posters printed with the words LONG LIVE MARSHLAND dangled from every lamp-post. If I hadn’t seen with my own eyes, I would never believe it. And, (5) ___________ for the Mayor, Mrs Briggs, the centenary would have passed by unnoticed. 
Your answers:
1. _____________
3. _____________
5. _____________
2. _____________
4. _____________
SECTION IV: WRITING (4 points)
Part 1. Finish the second sentence so that it has the same meaning as the first. (1 point)
1. Apart from Philip, everyone else at the meeting was a party member.
With_________________________________________________________________________ 
2. The only thing that makes the job worthwhile is the money.
Were_________________________________________________________________________
3. They will not announce the decision formally
No formal_____________________________________________________________________
4. She firmly believed John to be telling the truth.
It____________________________________________________________________________
5. He seems not to care about anything.
He acts_______________________________________________________________________
Part 2. Use the word provided to write a new sentence that is as similar as possible in meaning to the original sentence. (1 point)
1. The teachers agreed to introduce the new methods. (agreement)
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2. Jenny didn’t feel like going to the party. (mood)
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3. Bad weather delayed the flights. (due)
_____________________________________________________________________________
4. You can avoid tooth decay by brushing your teeth regularly. (prevented)
_____________________________________________________________________________
5. They share a lot of hobbies and interest. (common)
_____________________________________________________________________________
Part 3: Write a report of at least 150 words for a lecturer describing the information in the following chart. (2 points)
	This bar chart indicates the percentage of internet users from 1998 to the year 2000
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____________The end___________