英语四级十五选十技巧.pptVIP

大学英语四级15选10答题技巧; 15选10是大英四级改革后阅读的新题型，有些同学做这 题时会盲目地“试答案”，这不仅会使正确率下降，还会影响答题时间，其实，做这种题时还是有很多 规律可循的，一般将备选分类是最有效的方法，可以按词性划分为名词、动词、形容词和副词，同样，平均到这些类别中的词汇也减少到了3、4个，这样通过上下 文判别空缺单词的词性来有的放矢地选择答案，作对的几率就会明显上升， ;对于15选10的题型，解题步骤有四步： 　　第一步：通读全文， 特别是每个段落的首末句，迅速抓住文章的主题和中心， 　　第二步：对所给出的备选单词进行词性分类 　　第三步：根据上下文意思进行填空 (结合样题详细讲解) 　　第四步：检查核对， 　　解决15选10题型的五大绝招： 　　1) 词性判断 　　2) 常用搭配 　　3) 内在逻辑 　　4) 感情色彩 　　5) 语法常识;第一步是每位学生都要去做的，就是把15个单词通过后缀进行词性分类，但是通常我的习惯是遇到动词进行二次分类：确定时态，确定单三还是非单三；遇到名词 确定单数还是复数；我一直认为单词不认识不应该成为学生放弃选词填空的原因，在做第一步之前我先把4级历年真题选词填空中出现频率最高的后缀全部列举出 来： 名词后缀：tion/sion/ness/ment/er/or/ist/ism 形容词后缀：able/al/ant/ent/tive/sive/ous/less/ed/ing 动词后缀:ate/lize/ing/ed 副词后缀：ly/ward/wise;答题技巧一：确定空白处词性;以下情况，空白处为分词：;以下情况，空白处为名词：;以下情况，空白处为形容词：;以下情况，空白处为副词：;答题技巧二：;答题技巧三：;答题技巧四：;答题技巧五：;答题技巧六：; As an Alaskan fisherman. Timothy June, 54, used to think that he was safe from industrial pollutants (污染物)at his home in Haines-a town with a population of 2,400 people and 4,000 eagles, with 8 million acres of protected wild land nearby. But in early 2007, June agreed to take part in a 36 of 35 Americans from seven states. It was a biomonitoring project, in which people’s blood and urine(尿)were tested for 37 of chemicals-in this case, three potentially dangerous classes of compounds found in common household 38 like face cream, tin cans, and shower curtains. The results- 39 in November in a report called “Is It in Us?” by an environmental group-were rather worrying. Every one of the participants, 40 from an Illinois state senator to a Massachusetts minister, tested positive for all three classes of pollutants. And while the 41 presence of these chemicals does not 42 indicate a health risk, the fact that typical Americans carry these chemicals at all 43 June and his fellow participants.;Clearly, there are chemicals in our bodies that don’t 44 there. Ongoing study conducted by the Centers for Disease Control and Prevention has found 148 chemicals in Americans of all ages. And in 2005, the Environmental Wor