B Observations of Warming in the Northern Hemisphere
C Effect to Reduce Snow Albedo (反照率)來源:考試大
E Ways to Reduce Soot Emission
4.Paragraph 7 __.來源:考試大
The researchers found that observed warming in the Northern Hemisphere was large in the winter and spring at middle and high latitudes.(These observations were consistent with the researchers’climate model simulations, which showed some of the 1argest warming effects occurred when there were heavy snow cover and sufficient sunlight.)
4. B.分析:段首句中出現(xiàn)了Northern Hemisphere,而接下來的句子中出現(xiàn)了“These observations”,這些詞都被包含在B中,因此判斷B是答案。
A .produces much more global warming than a carbon-dioxide forcing of the same magnitude
B .contributed to 25 percent of observed global warming
C. can produce greenhouse gases
D .a(chǎn)bsorb more of sun’s energy and warmth than white background
E .still surpass soot in warming the world’s climate during the last century
F .can be seen mostly in the Northern Hemisphere
5. In the twentieth century, soot ___.來源:考試大
5. B.分析:結(jié)合文章標題(主題)Soot (煤灰) and Snow:a Hot Combination,判斷B很可能是答案。也可以借助文章中的相關(guān)語句:According to a computer simulation,black soot may be responsible for 25 percent of observed global warming over the past century.
A. produces much more global warming than a carbon-dioxide forcing of the same magnitude
C. can produce greenhouse gases
D. absorb more of sun’s energy and warmth than white background
E. still surpass soot in warming the world’s climate during the last century
F. can be seen mostly in the Northern Hemisphere
6.Hansen cautioned that greenhouse gases__.
6.E. 分析:文章中提到溫室氣體仍然是造成全球溫度上升的主要因素,因此判斷E是答案。
A. produces much more global warming than a carbon-dioxide forcing of the same magnitude
C. can produce greenhouse gases來源:考試大
D. absorb more of sun’s energy and warmth than white background
F .can be seen mostly in the Northern Hemisphere
7. Black soot covered snow and ice__.來源:考試大
7. D.分析:該題可以借助常識直接判斷D是答案(帶有煤灰的冰和雪要比白色的背景吸收的熱量多)。
A. produces much more global warming than a carbon-dioxide forcing of the same magnitude
C. can produce greenhouse gases
F. can be seen mostly in the Northern Hemisphere
8. A soot forcing is unusually effective,which__.
8. A.分析:借助提干中的核心詞soot forcing作為答案線索,這樣發(fā)現(xiàn)答案相關(guān)句:Soot’s increased absorption of solar energy is especially effective in warming the world’s climate.“This forcing is unusually effective,causing twice as much global warming as a carbon-dioxide forcing of the same magnitude(數(shù)量).
C Effect to Reduce Snow Albedo (反照率)來源:考試大
E Ways to Reduce Soot Emission
4.Paragraph 7 __.來源:考試大
The researchers found that observed warming in the Northern Hemisphere was large in the winter and spring at middle and high latitudes.(These observations were consistent with the researchers’climate model simulations, which showed some of the 1argest warming effects occurred when there were heavy snow cover and sufficient sunlight.)
4. B.分析:段首句中出現(xiàn)了Northern Hemisphere,而接下來的句子中出現(xiàn)了“These observations”,這些詞都被包含在B中,因此判斷B是答案。
A .produces much more global warming than a carbon-dioxide forcing of the same magnitude
B .contributed to 25 percent of observed global warming
C. can produce greenhouse gases
D .a(chǎn)bsorb more of sun’s energy and warmth than white background
E .still surpass soot in warming the world’s climate during the last century
F .can be seen mostly in the Northern Hemisphere
5. In the twentieth century, soot ___.來源:考試大
5. B.分析:結(jié)合文章標題(主題)Soot (煤灰) and Snow:a Hot Combination,判斷B很可能是答案。也可以借助文章中的相關(guān)語句:According to a computer simulation,black soot may be responsible for 25 percent of observed global warming over the past century.
A. produces much more global warming than a carbon-dioxide forcing of the same magnitude
C. can produce greenhouse gases
D. absorb more of sun’s energy and warmth than white background
E. still surpass soot in warming the world’s climate during the last century
F. can be seen mostly in the Northern Hemisphere
6.Hansen cautioned that greenhouse gases__.
6.E. 分析:文章中提到溫室氣體仍然是造成全球溫度上升的主要因素,因此判斷E是答案。
A. produces much more global warming than a carbon-dioxide forcing of the same magnitude
C. can produce greenhouse gases來源:考試大
D. absorb more of sun’s energy and warmth than white background
F .can be seen mostly in the Northern Hemisphere
7. Black soot covered snow and ice__.來源:考試大
7. D.分析:該題可以借助常識直接判斷D是答案(帶有煤灰的冰和雪要比白色的背景吸收的熱量多)。
A. produces much more global warming than a carbon-dioxide forcing of the same magnitude
C. can produce greenhouse gases
F. can be seen mostly in the Northern Hemisphere
8. A soot forcing is unusually effective,which__.
8. A.分析:借助提干中的核心詞soot forcing作為答案線索,這樣發(fā)現(xiàn)答案相關(guān)句:Soot’s increased absorption of solar energy is especially effective in warming the world’s climate.“This forcing is unusually effective,causing twice as much global warming as a carbon-dioxide forcing of the same magnitude(數(shù)量).