In this section you will find after each of the passage a number of questions or unfinished statements about the passage, each with 4 (A, B, C and D) choices to complete the statement. You must choose the one which you think fits best. Blacken the corresponding letter as required on your Machine-scoring ANSWER SHEET. The time for this section is 70 minutes.
The Intergovernmental Panel on Climate Change (IPCC) was set up in 1988 to assess information on climate change and its impact. Its Third Assessment Report predicts global temperature rises by 2100 of between 1.4℃ and 5.8℃. Although the issue of the changing climate is very complex and some changes are uncertain, temperature rises are expected to affect countries throughout the world and have a knock-on effect with sea-level rises.
Scientists have argued about whether temperature rises are due to human activities or due to natural changes in our environment. The IPCC announced in 2001 that “most of the warming observed over the last 50 years is likely to be attributable to human activities”. This was a more forceful statement than in1996 when the Second Assessment Report stated that there was a “discernible human influence on the climate” which was the first time they had concluded such a link. Many experts believe the faster the climate changes, the greater the risk will be.
Key points of the projections for climate change globally include that by the second half of the 21st century, wintertime rainfall in the northern mid to high latitudes and Antarctica will rise, that meanwhile Australia, Central America and southern Africa are likely to see decreases in autumn precipitation, that some land areas in the tropics will see more rainfall, and that there will generally be more hot days over land areas.
51. IPCC probably does not ______.
A. analyse climate change information B. record weather changes on its premises
C. predict what is to happen to the earth D. collect weather date from many countries
52. According to the passage, a Chinese city that recorded 45 degrees Celsius at noon on August 4,2004, will most probably witness a temperature measuring _____ at 12:00 sharp in the year of 2100.
A. 46.1℃ B. 1.4℃ C. 5.8℃ D. a number that I do not know
53. According to the author, climate researchers _____.
A. are quite sure about why it’s getting hotter and hotter
B. declared that we humans are the cause why it’s getting hotter
C. have discussed the possible cause why it’s hotter
D. have claimed that changes in nature are the roots of hot days
54. Based on the text, we know that temperature rises will probably _____.
A. knock off sea levels B. have a serious effect on sea-level rises
C. keep the sea level rising D. keep knocking at the sea
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