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听力是大学英语四级考试必考的部分，对于考生来讲，听力与阅读的分值和难度都是相对比较高的的，那么为了能够顺利的通过大学英语四级考试，拿下大学英语四级听力部分就是必须要做到的，下面文都图书就来帮助考生们分享2015年12月份大学英语四级精炼练习题。
首先、真题是至关重要的。给大家介绍一本书，2015《大学英语四级考试真题精析与标准预测》是比较适合的精品，不仅包含最新的9套真题和3套标准预测卷，涵盖诸如词汇、听力、选词填空、阅读理解、翻译、写作等，适用于基础薄弱的考生复习。
Negotiations on Iran's nuclear program have beenextended until July 7, U.S. officials said Tuesday.The announcement came during continuingdiscussions in Vienna, Austria.
The negotiations were to end June 30.
Also Tuesday, U.S. President Barack Obama said thatthe United States would "walk away" from a possiblenuclear deal with Iran if he is not certain it wouldblock Iran's path to building a nuclear weapon.
US, Brazil to work together on climate change
President Obama and Brazilian President Dilma Rousseff met at the White House Tuesday. Theydiscussed new plans to reduce carbon emissions ahead of the United Nations conference onclimate change. The international gathering will take place in December in Paris.
Both countries pledged to increase the use of renewable energy to 20 percent of nationalelectricity production by 2030. Brazil also promised to fight illegal destruction of forests.
China announces climate target for Paris deal
China also announced on Tuesday its contribution to a global climate deal.
Chinese Prime Minister Li Keqiang spoke during a visit to the French capital. He said China willaim to reduce its emissions by at least 60 percent by 2030 from 2005 levels.
最后，文都图书提醒备考的小伙伴们，一定要坚持每天进步一点点，对于大学英语四级听力部分来讲，足够的词汇词组也是完胜考试的关键之一。
来源：文都图书
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