Deeply disappointed with the skirt the tailor made , she decided to buy another one .
17. at birth 在出生时
Separated at birth , the twins don\'t know each other .
It was said that the baby weighed 9 pounds at birth .
18. be ill with 患……病
She is ill with heart disease .
19. be skilled at / in 精通；擅长
Our teachers are skilled at using modern teaching techniques .
20.work hard against 致力于反对……
D. 单元语法学习目标
在 1 — 5 单元中重点学习了定语从句的应用、名词性从句的理解和 -ing 分词的具体应用。测试中注意下列语法知识的综合运用。
■ 定语从句常见考点例释
一、关系代词 that 的选用
例1 . To get the job started , ____ I need is your permission . (MET 85)
A . only what B . all what C . all that D . only that
例2 . Finally , the thief handed everything ____ he had stolen to the police . (MET 87)
A . after B . what C . whatever D . that
例3 . All ____ is needed is a supply of oil . (MET 89)
A . the thing B . that C . what D . which
以上例题答案分别为C，B和B。它们考查的是一个知识点，即在定语从句中，当先行词为 all , everything , something , nothing 等不定代词时，关系代词只能用 that，不能用 which。此外，在定语从句中关系代词只用 that，不用 which 的情况还有当先行词被序数词或形容词最高级修饰时，或当先行词既有人又有物时。如：
This is the best film that has been shown this year . 这是今年放映的最好的一部电影。
He talked about the school and the teachers that he had visited . 他谈论着他参观过的学校和老师们。
二、关系代词 whose 的选用
例 1 . A child ____ parents are dead is called an orphan . (MET 86)
A . which B . his C . whose D . with
例 2 . His parents wouldn\'t let him marry anyone ____ family was poor . (MET 88)
A . of whom B . whom C . of whose D . whose
whose 和 his , her , their 等形容词性的物主代词，尽管两者在意义上相近，但 whose
在定语从句中作定语，修饰其后的名词，表示“……的”，不可用 his , her 等物主代词来代替。以上例题虽然选项设置差异较大，但考查点相同。其答案分别为C和D。
三、关系代词与关系副词的选用
例1 . I can still remember the sitting-room ____ my mother and I used to sit in the evening . (MET 86)
A . what B . which C . that D . where
例2 . After living in Paris for fifty years he returned to the small town ____ he grew up as a child . (NMET 96)
A . which B . where C . that D . when
例3 . I shall never forget those years ____ I lived in the country with the farmers , ____ has a great effect on my life . (94上海高考题)
A . that;which B . when;which C . which;that D . when;who
例4 . I also enjoyed the evenings when we spent together . (NMET 95改错题)
例5 . I lived in Beijing , where is the capital of China . (NMET 97改错题)
在定语从句中，关系代词和关系副词的选用，并非完全由先行词来决定，而是由关系词在定语从句中所充当的句子成分来决定的。一般来说，关系代词 that , which 和 who 在定语从句中可作主语或宾语，whom作宾语；而关系副词 when , where 和 why 则只能用时间、地点和原因状语。以上所举例题答案1 . D 2 . B 3 . B 4 . 由于从句中 spent 为及物动词，关系词作其宾语，故应将 when 改为 which 或 that 或省略二者；5 . 关系词应在非限制性定语从句中作主语，故应把 where 改为 which。