1. C。由第一段第二句话“A few days later, on September 18, US President George W. Bush announced a limited pullout of 30,000 troops by August.”可知C项为正确答案。B项的“complete”不对；由第二段“They and a clear majority of the US population want an end to what they see as a war that it is impossible to win.”可知民众认为这是一场不可能胜利的战役，希望尽早结束，但布什并没有按民意行事，故B、D错误。
2. D。由第五段的第二、三句话“But many think that the pressure came from his own party. His Republican allies worry that the unpopularity of the war will make it impossible for their party’s candidate to win in the 2008 presidential race. ”可知D项才是布什撤军的真正原因。
3. A。由第四段美军驻伊拉克将军David Petraeus的态度“…admitted that there was no immediate end in sight. He said he couldn’t be sure when US military involvement in Iraq would come to an end.”可推知A项正确，B项错误。由第二段第一句“But this will not satisfy the protestors.”可知C不对；D项文中没有提及，且“withdrawing all the troops”不符合文意。
4. B。“a civil war that no one actor or organization will be strong enough to win”是“a free-for-all…”的同位语，进一步对其进行解释说明，所以“free-for-all”在此指的是“a kind of war”，再由定语从句“where everyone will be fighting everyone else”可推知B项为最佳选项，“free-for-all”意为“在场的人可以随时，随意加入争辩的吵架、混战”。
1. 由广告词“I can’t deal with global warming, but at least I look good.”以及第四段“They think young people only care about fashion and being cool. They are wrong.”可推知A符合题意。
2. 由第四段的“They think young people only care about fashion and being cool. They are wrong. We won’t sacrifice our basic values”可知C项正确。
3. 由文章最后两段可知作者的观点是：仅仅嘴上说关心全球变暖等社会问题是不够的，关键是要为阻止全球变暖付诸行动，从小事做起，因此答案为B。
1. B。由第三段的“the third youngest grandmaster in world history.”可知A项数据错误；由第二段的“Now he is 17th in the World Chess Federation’s ranking of top players – unprecedented for a player his age.”可知B项正确；由第七段“After playing his first tournament at eight, his baby face became a common feature in chess circles.”可知C项错误；文中并没有说明他具体几岁知道世界上的国家名，所以D项也不对。
2. D。由第五段的“But his first attempts at the game were awkward and he was far from the “Mozart of Chess”.以及第六段的 “I almost gave up,” his father remembers.可推知D项符合题意。
3. D。由文章最后一段“Before a match I will sleep a lot,”可知D项正确。
1. D。由第二段的“It will draw a 3D map of the moon and study the moon’s environment. It will also locate safe landing spots for future missions.”可知D项不是Chang’e I 要执行的任务。
2. A。由第六段的“Japan launched its lunar orbiter SELENE-1 on September 14, while India’s Chandrayaan-1 lunar orbiter is set to launch in May 2008.”以及“Did you know”的内容可推知A项为正确排序。
3. C。由第四段的““The moon exploration project is the third milestone in China’s space technology after satellite and manned spacecraft projects,”可知第二块里程碑是the manned spacecraft project。
4. B。由第七段的“Chang’e I will be the first to explore lunar earth with microwaves.”可知B项正确。
