题目内容
2．_____is often the case，we have worked out the production plan．（ ）| A． | It | B． | Which | C． | What | D． | As |
分析 正如通常情况，我们研究出了生产计划．
解答 答案D．分析句子结构可知，逗号之前是非限制性定语从句，逗号之后是主句，从句中关系代词"as"作主语，意为"正如"，固定短语"as is often the case"，通常情况如此．
点评 本题考查非限制性定语从句．解答此类题目首先要分析句子结构，非限制性定语从句中逗号是一个明显的标志，然后分析非限制性定语从句中的成分，如果缺成分用关系代词，如果不缺成分用关系副词．
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| 41．A．but | B．so | C．for | D．or |
| 42．A．regret | B．disappointment | C．fear | D．anger |
| 43．A．catch up with | B．break away from | C．give in to | D．come back to |
| 44．A．hammer | B．stick | C．gun | D．spray |
| 45．A．dropped | B．fired | C．threw | D．held |
| 46．A．in turn | B．at last | C．in time | D．at random |
| 47．A．back | B．down | C．behind | D．over |
| 48．A．flight | B．race | C．journey | D．attack |
| 49．A．still | B．just | C．also | D．even |
| 50．A．kicked | B．rode | C．hit | D．pressed |
| 51．A．crazy | B．wrong | C．careful | D．fair |
| 52．A．victim | B．competitor | C．killer | D．protector |
| 53．A．decided | B．declared | C．assumed | D．found |
| 54．A．faster | B．closer | C．stron ger | D．wiser |
| 55．A．climber | B．motorist | C．cyclist | D．runner |
| 56．A．sent | B．fell | C．turned | D．jumped |
| 57．A．window | B．seat | C．door | D．trunk |
| 58．A．bent | B．struck | C．blocked | D．unlocked |
| 59．A．frightened | B．worried | C．discouraged | D．confused |
| 60．A．brave | B．calm | C．optimistic | D．confident |