题目内容
15．-Do we have to wear our school uniforms tomorrow？-I think so．We _____ the coming-of-age ceremony in the afternoon．（ ）
| A． | will be attending | B． | have attended | ||
| C． | attend | D． | attended |
分析 -我们明天必须要穿校服吗？-我想是的．明天下午我们要参加成人礼仪式．
解答 答案：A 句意表达的是将来，要用将来时态；A将来进行时态，B现在完成时态，C一般现在时态，D一般过去时态．根据句意，故选A．
点评 将来进行时主要表示将来某一时间正在进行的动作，或表示要在将来某一时间开始，并继续下去的动作．一般用延续性动词表示．常用来表示礼貌的询问、请求或期待等．
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3．
Forests in the northern half of the globe could be growing faster now than they were 200years ago as a result of climate change，according to a study of trees in eastern America．The trees appear to have faster growth rates due to longer growing seasons and higher concentrations （浓度） of carbon dioxide in the（41）F．
Geoffrey Parker，a scientist at the Smithsonian Environmental Research Centre in Edgewater．Maryland，said that the increase ha the rate of growth was unexpected and might be （42）G to the higher temperatures and longer growing seasons documented in the region．The growth may also be influenced by the significant （43）Jin atmospheric CO2，he said．
"We made a list of reasons these forests could be growing faster and then excluded half of them，"Dr Parker said．Their study suggests that northern forests may become increasingly important in（44）H the influence of man-made CO2on the climate．
Dr Parker and his colleagues have （45）Iout a detailed record of the trees on a（n）（46）Cbasis since 1987．They calculated that due to the global warming the forest is producing（47）A tons of wood each year．
The scientists （48）E the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate．More than 90percent of the tree groups had grown by between two and four times faster than the scientists had（49）Dfrom estimates of the long-term rates of growth．
| A．additional B．producing C．regular D．predicted E．identified E atmosphere G．matched H．reducing I．carried J．increase |
Geoffrey Parker，a scientist at the Smithsonian Environmental Research Centre in Edgewater．Maryland，said that the increase ha the rate of growth was unexpected and might be （42）G to the higher temperatures and longer growing seasons documented in the region．The growth may also be influenced by the significant （43）Jin atmospheric CO2，he said．
"We made a list of reasons these forests could be growing faster and then excluded half of them，"Dr Parker said．Their study suggests that northern forests may become increasingly important in（44）H the influence of man-made CO2on the climate．
Dr Parker and his colleagues have （45）Iout a detailed record of the trees on a（n）（46）Cbasis since 1987．They calculated that due to the global warming the forest is producing（47）A tons of wood each year．
The scientists （48）E the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate．More than 90percent of the tree groups had grown by between two and four times faster than the scientists had（49）Dfrom estimates of the long-term rates of growth．
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