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2016年職稱英語理工類C級語法5

發布時間: 2016-03-16 16:02:54 點擊量:
主語 + 系動詞 + 表語
 
1) 系動詞一般為be 動詞。
 
注意:look, feel, sound, smell, taste, get, become, come, go, turn, grow, keep, seem, stand等詞可以作“半系動詞”用,按行為動詞方式變化,起系動詞的作用。
 
試驗比較:
 
—— He felt the pockets thoroughly but did not find a single penny.(他摸遍了口袋但沒有找到一分錢。—— feel為行為動詞)
 
—— You look pale. Do you feel unwell? (你臉色蒼白,感到不舒服?—— look / feel為系動詞)
 
一般來說,動詞后面跟的是個形容詞或名詞,該動詞為系動詞, 如:The plan sounds perfect. / The flower smells nice. / The dish tastes delicious. / It is getting dark.
 
實例:
 
“Don't worry. Let me take your pulse first.” “Oh, it ______ normal.” (脈搏正常)
 
A. is felt
 
B. is feeling
 
C. feels
 
D. felt
 
解題思路:normal為形容詞,前面應為系動詞;系動詞沒有被動語態,故A不對; look, feel, sound, taste, smell, seem等半系動詞一般不用進行時,B也不對;D時態錯了,故正確答案為C.
 
2)there be是英語中非常重要的一個句型: there是引導詞,不解釋 "那里"; 這是個倒裝句, 主語在be動詞的后面, be動詞的單復數由后面的主語決定。
 
注意中國學生容易搞錯的問題:
 
There isn't enough furniture in the room.(房間里家具不夠)
 
錯:There hasn't enough furniture in the room.
 
There is no doubt that smallpox has been wiped out in China.(毫無疑問,中國已消滅天花。)
 
錯:It is no doubt that smallpox has been wiped out in China.
 
There is ample evidence that AIDS is spreading quickly in Asia. (充分證據表明,愛滋病正在亞洲迅速蔓延。—— 同位語從句)
 
錯:It is evidence that AIDS is spreading quickly in Asia. (可以: It is evident that AIDS is spreading quickly in Asia. - 主語從句)
 
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