A.并列递进关系：标志词汇有 and, indeed, also, besides, similarly, like, accordingly, in the same way, meanwhile, furthermore, moreover等；
B.转折关系：标志词汇有 but, yet, although, however, on the contrary, on the other hand, instead等；
C.因果关系：标志词汇有 for, because, since, therefore等；
D.解释关系：标志词汇有 that is, that is to say, for example, such as, namely, in other words等。
(2)解题步骤
A.第一步：通读全文，尤其是首末段，迅速得知文章的主旨大意;
B.第二步：通读选项，在每个选项下边用笔标记本选项的大致中文意思，以做到心中有数，至少应该能知道可以供考生选择的选项的意思范围，并且在很短的时间里找到考生想找到的选项；
C.第三步：回到文章中的空白处，分析空白处的上下文，结合前面的解题方法得出需要的选项；
D.第四步：把自己选择的选项带入原文，检测是否文章前后连贯，检测所选的选项是否和文章的主旨大意相吻合。
(3)解题技巧
A.“就近原则”，在文章空白处的上下文中寻找解题的线索；
B.“时间原则”，出现时间、年代等词语时，要注意文章中的时间和选项中的时间的对应关系；
C.“代词原则”，指示代词，因为是指代前面的内容，所以一般不能作为段落的开头；
D.“相近原则”，如果有两个选项非常的相似，那么其中一个往往是正确答案；
E.“重复原则”，如果一个选项中的单词与文章中的单词重复比较多或意思相近的比较多，那么这个选项往往就是正确答案；
F.“排除原则”：做7选5填空的时候，建议大家最好使用排除原则，由易到难地去解题。
四、大纲样题(Sample One)
Directions:
In the following text, some sentences have been removed. For Questions 41病45, choose the most suitable one from the list A睪 to fit into each of the numbered blanks.There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET 1.(10 points)
Long before Man lived on the Earth, there were fishes, reptiles, birds, insects, and some mammals.Although some of these animals were ancestors of kinds living today, others are now extinct, that is, they have no descendants alive now. 41).Very occasionally the rocks show impression of skin, so that, apart from color, we can build up a reasonably accurate picture of an animal that died millions of years ago.That kind of rock in which the remains are found tells us much about the nature of the original land,often of the plants that grew on it,and even of its climate.
42).Nearly all of the fossils that we know were preserved in rocks formed by water action,and most of these are of animals that lived in or near water.Thus it follows that there must be many kinds of mammals, birds, and insects of which we know nothing.
43).There were also crablike creatures, whose bodies were covered with a horny substance.The body segments each had two pairs of legs, one pair for walking on the sandy bottom, the other for swimming.The head was a kind of shield with a pair of compound eyes, often with thousands of lenses.They were usually an inch or two long but some were 2 feet.
44). Of these,the ammonites are very interesting and important. They have a shell composed of many chambers, each representing a temporary home of the animal. As the young grew larger it grew a new chamber and sealed off the previous one. Thousands of these can be seen in the rocks on the Dorset Coast.
45).About 75 million years ago the Age of Reptiles was over and most of the groups died out. The mammals quickly developed, and we can trace the evolution of many familiar animals such as the elephant and horse. Many of the later mammals though now extinct, were known to primitive man and were featured by him in cave paintings and on bone carvings.
[A]The shellfish have a long history in the rock and many different kinds are known.
[B]Nevertheless,we know a great deal about many of them because their bones and shells have been preserved in the rocks as fossils. From them we can tell their size and shape, how they walked, the kind of food they ate.
[D]The best index fossils tend to be marine creature. There animals evolved rapidly and spread over large over large areas of the world.
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