英语专业四级词汇与语法全真模拟练习二十三

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　　1. The mother said she would __ her son washing the dishes if he could finish his assignment before supper.
8 J' O2 q4 m" E1 o- b; ?　　A let down
　　B let alone
　　C let off
　　D let out
　　2. This kind of material can __ heat and moisture.
% J4 m- d$ f* ^0 g　　A delete
　　B compel
; I8 f( E1 r$ O5 ^% p　　C constrain
　　D repel
: H- m; X) P6 p　　3. Understanding the cultural habits of another nation, especially __ containing as many different subcultures as the United States, is a complex task.
+ |& \/ s% w8 S. b8 j: E& ~$ M　　A one
. ?& F' B: L' J, L3 V1 r" Y' |2 O, f　　B the one
$ }$ h8 Q  @6 R3 ^6 u　　C that
3 i: b+ L3 w4 H* l% m/ E　　D such
. Y# P0 R& \6 U3 d　　4. In order to raise money, Aunt Nicola had to __ with some of her most treasured possessions.
　　A divide
* W; v  s' _. d& ~. j, k- V　　B separate
# P) a5 t- t* u' r/ K+ j　　C part
; ^  f! c* O% ^2 t! h. r　　D abandon
　　5. The new appointment of our president __ from the very beginning of next semester.
# }5 \. Z5 y  Z3 I( ~0 \　　A takes effect
* s- K" q9 t! o' `$ X, V　　B takes part
　　C takes place
　　D takes turns
　　KEYS1-5 CDACA
. [) k  }' j  K" G, I1 h4 j7 Q　　1. 选C ①let off原谅，不处罚，放过 With your record, you can hardly expect to let off lightly.
　　② let down使失望，食言③let alone别管，别烦Let her alone! She didn’t pick a quarrel with you.④ let out让……离开Open the door and let the cat out.　　  
% q+ E' u4 [, I+ t- Y# S　　2. 选D ①delete消去，删除 Delete his name from the list of applicants.②compel强迫，迫使（运用权利/力量对方采取行动）He was compelled by illness to give up his studies.③constrain 限制，约束（强调内心情感），后接不定式 His activities must be constrained.④ repel排斥，抵制，防，抗We should not repel but protect young people’s enthusiasm.
　　3.选A 依语意以句子结构，此处需要一个代词，表泛指，则选one;而the one表特指 Please get the chair for me, the one in the corner.
　　4.选C ①part 不及物动词 “分别，离别”Scarcely an hour has passed since we parted.②divide分，划分Is the land to be divided up or sold as a whole?③separate使……分离④abandon抛弃，放弃The order was given to abandon ship.
　　5.①take effect（药物）见效，（法律等）生效The new system of taxation will take effect next May.②take part参加③take place发生，举行④take turns轮流，依次They are unwilling to take turns at the same computer.