下面是小編整理的公共英語考前練習題，同學們在考試之前可以做一做，當作考前熱身練習。
● 詞形的派生
【例句】
teacher told us to be careful when we did our exam.
The teacher told us to do our exam.
【正確答案】fully
【規律分析】這部分要求考生掌握一些基本的構詞法。詞彙學習中構詞法是最重要的方法之一。通過加字首或字尾的方法可使一個詞改變詞義或詞性。考生應能根據句型，將某個詞語變為所需要的形式。
● 從句的變換
N 主從複合句與並列句的相互轉換
【例句】
y or you will be late for school.
you don’t hurry, you will be late for school.
N 從句與從句的相互轉換
【例句】
came only after the meeting was over.
He didn’t comethe meeting was over.
N 從句和不定式的轉換
【例句】
box is so heavy that I can’t lift it.
The box isheavy for melift.
【正確答案】 ...
【規律分析】這部分要求考生了解常見覆合句的主句與從句間的關係，掌握複合句從句引導詞的用法以及一些起連線作用的片語的`用法。
● 用連線詞合併兩個簡單句
【例句】
couldn’t sing well. I couldn’t sing well, either.
JaneI could sing well.
【正確答案】...
【規律分析】這部分要求掌握一些常見連詞或連詞片語的用法。這些連線詞包括and,,not also, ,,but,so等。
從以上命題規律分析可以看出，只有掌握了句型，才能保證準確地改寫原句而又不改變其意思。這就要求考生在平時一定要注意多積累各種句型，切實掌握大綱所要求的各種語法規則，對那些常見的重要句型和表達方式要經常複習記憶。同時還要認識到，掌握了句型並不意味可以忽略詞彙的作用，不同的句型中同一個詞語可能有不同的含義或作用，也可能派生出不同的形式，考生需要結合考試題型，將詞彙放在句型中記憶和學習，從而在掌握句型的同時理解詞彙。
改寫句子試題範例
下面是關於Mary昨天去商店的三對句子。每對句子中，第一句是原句，第二句是對第一句的改寫。要求根據原句和第二句中已經給出的部分補全第二句。注意不能改變原句的意思。
people went shopping yesterday.
There were many people yesterday.
spent 3 hours buying New Year gifts.
It Mary 3 hours to buy New Year gifts.
was so tired that she couldn’t walk any longer.
She was tiredwalk any longer.
【正確答案】 the shops/
【規律分析】第1題考查同義詞組間的轉換;第2題考查習慣用法的不同表達;第3題考查從句和不定式的轉換。
Scientists say they now have proof to support the old-fashioned advice that it's best to sleep on a problem. They say sleep strengthens the memory and helps the brain organize the masses of information we receive each day.
Lead researcher Bob Stickgold at the Harvard Medical School said, "Sleep helps us draw rules from our experiences. It's like knowing the difference between dogs and cats. even if it's hard to explain. "
The US research team studied how well students remembered connections between words and symbols (象徵) , reports New Scientist. They compared how the students performed if they had had a sleep between seeing the words and having the test, and if they had not slept. They found that people were better able to remember lists of related words after a night' s sleep than after the same time spent awake during the day. They also found it easier to remember themes (主題) that the words had in common. But they forgot around one in four more themes if they had been awake. Prof. John Groeger, of Surrey University's Sleep Research Centre, said, "People have been trying for years to fard out what the purpose of sleep is, as we know that only certain parts of it have a restorative (有助恢復的) value. "
" We form and store huge numbers of experiences in the head every day, and sleep seems to be the way the brain deals with it all. "
phrase" to sleep on a problem" in Paragraph 1 most likely means to______.
full attention to a problem
until later for a decision
p to forget a problem
difficulty sleeping
the study by the US research team, students were asked to______.
together words of similar meanings
mber words and their meanings
their knowledge of words
up lists of related words
h of the following may be easier to remember?
es learned right before the tes
s from personal experience
s learnt before a good slee
s stored together in the brai
may be the importance of the research?
shows sleep may help us manage imformatio
helps find out the common themes of word
tells us that more sleep can improve healt
proves the value of old-fashioned advic
參考答案：
BBCA
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A. an introduction to some products B. An advertisement for selling goods
C. a direction of a kind of washing machine D. A notice about a football game
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A. don’t delay joining us in playing B. You should buy 500,000 packets of splash
C. please buy a packet of splash D. Please drive a car as quickly as possible
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44. Splash is _________.
A. a certain kind of material used for washing in high quality
B. something like a machine used to wash clothes
C. the softest, quickest, and whitest car to drive
D. one of thousands of prizes for players to win
45. Which of the following diagrams (圖解) shows the correct relation ?
●: prize ▲: personal lucky number ★: splash ■: cars
A. ■→▲→★→● B. ●→★→■→▲
C. ★→▲→●→■ D. ■→★→▲→●
參考答案：
BCDAC
