[填空题]The conference wouldn’t have been so successful if we ______ (not make) adequate preparation.

[单项选择]______, Mr. Cross wouldn’t have been suspected of embezzlement.
A. If he hadn’t been on sick leave
B. If he hadn’t continued making excessive orders
C. If he hadn’t been Mr. Lawton’s brother-in-law
D. If he hadn’t been spotted by Mr. Lawton

[单项选择]______, Mr Cross wouldn’t have been suspected of embezzlement.
A. If he hadn’t been on sick leave
B. If he hadn’t continued making excessive orders
C. If he hadn’t been Mr Lawton’s brother-in-law
D. If he hadn’t been spotted by Mr Lawton

[填空题]You shouldn’t have been following him so closely; ______ (你应该与他保持距离).

[单项选择]________, Mr. Cross wouldn’’t have been suspected of embezzlement.
A. If he hadn’’t been on sick leave
B. If he hadn’’t continued making excessive orders
C. If he hadn’’t been Mr. Lawton’’s brother-in-law
D. If he hadn’’t been spotted by Mr. Lawton

[填空题]So far 32000 different kinds of spiders have been discovered from all over the world.

[单项选择]The words discussed so far have been limited to one type: those whose meaning identifies the members of a class. For example, the word chair is used correctly when it is applied to the class which includes objects as different as straight chairs, folding chairs and rocking chairs. The same skill in identifying instances of the same class is required for understanding some types of verbs. For example, all people walk differently, but native speakers of English use the word walk correctly when they realize that these minor differences are irrelevant. But not all words in a language involve the identification of classes. In fact, the mastery of a working vocabulary in any human language appeals to a wide range of intellectual skills, some easier and some more difficult than those required for grasping the meaning of common nouns and verbs. As an example of a relatively easy concept, consider what is required for understanding proper nouns: one must simply point out a single individua
A. has to learn to identify some features while ignoring others
B. first has to be able to use proper nouns
C. must be at least six years old
D. must play with toys

[简答题]So far there have been discovered no limits to man’s capacity to learn. (61){{U}}From earliest times, however, men in positions of power or influence have suggested that the learning capacity of certain individuals or groups is severely limited and that they should not be expected to profit greatly, if at all, from education.{{/U}} These "ineducable" individuals have usually been members of minority or disadvantaged groups. (62){{U}}But, repeatedly, when their cultural disadvantages have been removed, these groups have shown that their previous failure to learn has been due not to incapacity but to lack of fully realized opportunity.{{/U}}
These findings have led educators to be much more modest and less hasty in their labelling and classifying procedures. (63){{U}}It has been realized that labels affixed to children tend to become self- fulfilling prophecies, that those who are expected to learn usually do so, and those who are expected to fail to learn also usually do so.{{/U}