高二英語教材知識點總結及重難點解析Unit15-18
tion. 從畢業時起，我一直在當教師。
【考例3】(上海) the first use of atomic weapons
was in 1945,and their power ____ increased enor—
mously ever since.
a. is b. was
c. has been d. had been
[考查目標] 本題考查考生對動詞時態的辨析和運用能
力
[答案與解析]c 本題的關鍵在于抓住信息詞ever
since(自此以后，用于現在完成時態)。
【考點4】bison were killed for their meat, while their fur
provided warm clothing during coid winters. 野牛被殺了
吃肉。同時皮毛被制成御寒的冬衣o
while 為并列連詞，連接并列句，意為“而，卻”，表示句
子前后意義上的對比。
【考例4】(nmet 1995) she thought i was talking
about her daughter, ____ in fact, i was talking
about my ddughter.
a. whom b. where
c. which d. while
[考查目標] 本題考查連詞的區別。
[答案與解析]d 選項a中的whom指人；選項b中
的where指地方；選項 c 中的which指哪一個；只有選
項d中的while表示轉折.符合句子的語境：“她認為
我在說她的女兒，而實際上。我是在說我自己的女兒。”
[牛刀小試3]
1. finding her car stolen, ____. ( 上海)
a. a policeman was asked to help
b. the area was searched thoroughly
c. it was looked for everywhere
d. she hurried to a policeman for help
2. the computer center, ____ last year, is very
popular among the students in this school.
a. open b. opening
c. having opened d. opened
3. the problem of ____ become a serious one.
(nmet )
a. dealing with waste plastics have
b. deal with waste plastics have
c. dealing with waste plastics has
d. to deal with waste plastics has
4. the manager, ____ his factory's products were
poor quality, decided to give his workers further
training. ( 安徽春招)
a. knowing b. known
c. to know d. being known
5. victor apologized for ____ to inform me of the