1. rise，raise，arise，arouse

　　“rise” 是不及物动词，过去式为rose，过去分词为risen，其基本词义“上升，上涨”。

　　The sun rises in the east.

　　A good idea rose in my mind. “raise” 是及物规则动词，“举起，提高”。

　　He raised his voice to make himself heard.

　　The boy can raise the heavy stone.

　　“arise”，是不及物动词，过去式为arose，过去分词arisen，其语义为“出现，发生” 。

　　His curiosity arose due to the question his mother asked.

　　“arouse”是及物动词，过去式和过去分词为aroused，其语义为“唤醒，引起”

　　arouse somebody from sleep 把某人唤醒

　　arouse suspicion 引起怀疑

　　2. lay，lie，lie

　　“lay”及物动词，“放置，生蛋”，过去式与过去分词为 “laid”

　　I've laid the book on the self.

　　The hen lays an egg every day.

　　“lie”不及物动词“位于，平躺”，过去式为“lay”过去分词 “lain”

　　He lay on the floor and slept soundly.

　　Beijing lies in the north of China.

　　“lie”及物动词“说谎”，它是规则动词。

　　He lied to his teacher.

　　3. sit，seat

　　“sit”不及物动词，过去式与过去分词均为 “sat”。

　　He sat in the classroom reading newspaper.

　　“seat”及物动词，“使就坐”“容纳”。

　　He seats himself here.

　　He is seated there.

　　He seats the baby on his knees.

　　The hall will seat 5000 people.

　　4. affect，effect

　　“affect” 及物动词，“对……有影响，感动，触及”

　　The relations between then will be affected.

　　“effect” 及物动词， “导致，造成，带来（变化），产生”

　　The changes in methods effected some improvement in his study.

　　5. hang (hanged， hanged) / (hung， hung)

　　当 hang过去式与过去分词为 “hanged”，其含义是“绞死”；而当hang的过去式与过去分词为“hung”时，其含义是“悬挂”。

　　The man was hanged for murder.

　　He hung his coat on the hook.

　　6. borrow，lend

　　“borrow”借入 “borrow sth. from ...”

　　“lend”(lent， lent) 借出 “lend sb. sth” 或 “lend sth. to sb.”

　　7. take，bring，fetch

　　“take”(took， taken) 及物动词“拿走”

　　“bring”(brought， brought) 及物动词“带来”

　　“fetch” 及物动词“去取回来”

　　测试精编

　　1. Before discussing the steps in detail， ________.

　　A. a general principle should be laid down.

　　B. I should like to lie down a general principle

　　C. I'd like to lay down a general principle

　　D. a general principle lies.

　　2. The typewriter ________.

　　A. was laying on the table， where it had laid all week.

　　B. was lying on the table， where it had laid all week.

　　C. was laying on the table， where it had been laid all week.

　　D. was lying on the table， where it had been laid all week.

　　3. Up till now， these problems have been ________ for centuries.

　　A. laying dormant                     B. laying dormantly

　　C. lying dormant                      D. lain dormantly

　　4. “Oh， glad to see you， John.” “What ________ you to this city？”

　　A. carries        B. brings       C. takes              D. makes

　　5. During the period of inflation， the value of money drops as ________.

　　A. prices rise                         B. prices arise

　　C. the price is rising                   D. prices are raised

　　6. When all the students ________， the professor began his lecture.

　　A. seated         B. sit         C. were seated         D. seat

　　KEYS

　　1. C   2.D   3. C   4.B   5.A   6. C

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