题目内容
We can never expect ______ bluer sky unless we stop ______ industrial waste going into _____ atmosphere.
A.a; the; the B.the; the; the C.a; /; the D.the; /; /
A
【解析】
试题分析:a blue sky 蔚蓝的天空,固定搭配。第二空特指工业的废物故加the ,第三空atmosphere 大气层前面加the.句意:除非我们阻止工业废物排放到大气层中,否则我们不可能期望有蔚蓝的天空。
考点:冠词
点评:冠词分不定冠词和定冠词两种,本题着重理解定冠词和不定冠词的区别,对于冠词特指和泛指的考察是历年来高考的必考点,平时的学习要多进行积累,仔细分析特指还是泛指。同时,更为重要的是要多去积累习惯表达,特殊表达,这也是近几年高考习惯考的地方。总而言之,多解题、多理解、多积累才是制胜的法宝。
The skin which covers the tips of the fingers and thumbs is crossed by numerous ridges (隆起) arranged in different patterns. These patterns are permanent from birth and remain exactly the same throughout a person's life, even when the skin becomes wrinkled and cracked as a result of old age. Such patterns are never passed on from parents to children, and no one in the world has the same patterns as anyone else. Even identical twins have different sets of fingerprints. As a result, fingerprints offer a most useful and foolproof way of identifying people. Any ridged part of the hand and the foot may be used as a means of identification, but finger impressions are usually preferred since they can be taken easily and quickly.
Fingerprints are classified in the ways: by general shapes and contours(轮廓), by the finger positions of the pattern-types, and by size (often measured by counting the ridges in the loops). Every set of fingerprints has different “ridge characteristics” (i. e. the print of each separate finger is different from that of all the other fingers), which belong to one of four basic groups: arches, loops, whorls and composites. All fingerprints can then be divided into 1, 024 groups. By using details in the patterns above, these 1, 024 groups can be further divided into thousands of smaller groups, thus making it possible to find a particular set of fingerprints in a few minutes.
【小题1】According to this passage, the true statement about human fingerprints is that ____.
A.people's fingerprints sometimes can be passed on from parents to children |
B.people’s fingerprints are unique but identical twins may have the same fingerprints |
C.using fingerprints is the only way to identify people |
D.people's fingerprints will not change in all their lives |
A.we can never find the same set of fingerprints among human beings |
B.finger impressions can be taken easily and quickly |
C.fingerprints offer a most useful and foolproof way of identifying people |
D.all of the above |
A.that is permanent | B.that is acceptable |
C.that can not go wrong | D.that is not foolish |
A.Fingerprints can be classified in three ways |
B.All fingerprints can be divided into 1, 024 groups and can not be divided further |
C.It is not easy to find a particular set of fingerprints in a short time |
D.People can not classify the fingerprints in an effective way |