填空题常考结构 *j><a
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一、主句单一原则 /MsX
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任何一个句子中只可能有一个主句。 Lcplc"C
做题时考生需要首先判断原题中已经给出的句子结构,如果已经有一个主句,那么就绝对不能够再出现另一个主句,除非中间有连接词进行联系。 `kyr\+hp
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例1:--, work songs often exhibit the song culture of a people in a fundamental form. ;M8N%
(A) They occur where they are sBS\S
(B) Occuring where ~6!=_"
(C) Where they occur t ?28s/?
(D) Where do they occur a~OCo
分析:空格后面是一个主句,(A)为带有从句的主句,空格后又是主句,有两个主句一定错。 Sl^HMO
C为地点状语从句,正确(劳动歌曲发生的地方)。 E8jdQS|i
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例2: --Indiana, is in a rich farming and dairy area, it is primarily a diversified industrial center ^O#,%>1J
(A) Fort Wayne g-oHu8
(B) Although Fort Wayne .zlUN0oe
(C) For wayne is in "6
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(D) Fort Wayne, in 0Z2![n
分析:空格后有两个谓语动词但中间没有连接词,由此可知,最后一句话是一个主句,空格处应该有从句引导词,四个选项中只有(B)中although能引导从句,故选(B)。
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二、谓语动词专一原则
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任何一个句子只可能存在一个谓语动词。 vwZ2kk!|i
句子中不可能没有谓语动词,也不能多于一个谓语动词(除非中间存在连接词)。 U;;vNzcn
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例1:William Walker's mural, “Wall of Respect,” i4'?/UPc
-----an outdoor wall in Chicago, deals with /V46:`V
social issues. (J\"\#/d
(A) covers 7O;v5k~iQ
(B) covers it *<xEM-
(C) which covers ]^VC@$\)+
(D) which it covers }c|Xr^
分析:空格后的deals with 是谓语动词,A, B是谓语形式, 和deals with 之间没有连接词,可先排除; D 中的it多余,因为在定语从句中which已经作了主语;C构成正确的定语从句 m-5Dbx!j
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例2:In copper engravings and etchings, -----caused 7od!:<v/
by the edges of the plate is clearly visible on v#(wc+[
the paper. Y=x]'3}^
(A) the impression is `+\+
(B) if the impression is c3`X19'%fM
(C) impressions 4 rw<C07Z
(D) the impression i0L)hkV
分析:题目中的is是谓语,A,B中是谓语重复。C为复数名词,与后面的谓语动词is的数不一致,故也排除。因此选择D,caused.... 修饰impression i.)kV B
三、平行结构 06]J]
技巧:如果填空题中空格的后面有and, 或者and后面有空格,那么这道题目一定是考察平行结构。 elJLTG
填空题中平行结构出现的形式是: L@ql)Lc);
A and B, yw{GO([ZQ
A , B, and C cmZ39pjBJ
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例1:The technique of recording, classifying, and-- 'eLO#1Ipf
is known as accounting. b_|`jHes
(A) an enterprise's transactions summary E/Q[J.$o
(B) the summarizing of an enterprise's #:v|/2
transactions =CFO]9
(C) transactions of an enterprise are (VI4kRj
summarized }{n[_:[7
(D) summarizing the transactions of an Pn[-{nz
enterprise 2LiJ IO8N
分析:空格的后面是and, 一般考平行结构,空格处缺与前面recording、classifying并列的动名词。 q#xoM1
四个选项中只有(D)符合条件,故选(D)。 $GSn#} yz
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例2:Louis T. Wright, a surgeon, developed N41)?
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ingenious orthopedic braces, --, and %|I~8>m
supervised the first use of Aureomycin on 0/6f9A
human patients. Q=)$
(A) treating skull fractures that he pioneered in S4n\<+dR<
(B) pioneered in treating skull fractures z
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(C) which pioneered in treating skull fractures k-Hy>
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(D) he was a pioneer in the treatment of skull -lQ8
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fractures Tv_KdOv8
分析:空格后面是and, 空格处缺少和developed、supervised平行的谓语动词,因此选择(B)。 XT9]+b8(M
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四、宾语从句结构 _/;vsQB
宾语从句的引导词在前面的主从复合句中已经提到。 mXtsP
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这里指出的是填空题中关于宾语从句考的最多的两个结构: p[2`H$A
state(陈述,表明)+that y'((
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indicate(指明,表明)+that pZ,=iqr
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例1:The quantum theory states --, such as light, v6uR[18
is given off and absorbed in tiny definite 1YV ;pEw3w
units called quanta or photons. `|)V]<
(A) energy that aZn]8jC%
(B) that it is energy S~()A*5
(C) it is energy io%WV%1_
(D) that energy f^Sl(^f
分析:空格前的谓语动词states一般接关系连词that引导的宾语从句,故首先排除C。空格后已有谓语动词,空格不应再出现谓语动词,因此D正确。 \5M1;
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例2:Studies of the gravity field of the Earth $ha,DlN
indicate--yield when unusual weight is B6ee\
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placed on them. "'U+T:S
(A) although its crust and mantle o|(Ivt7jk
(B) its crust and mantle to W5c
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(C) that its crust and mantle D=1:-aLP7
(D) for its crust and mantle to 7"Qj(N
分析:空格处显然缺谓语动词indicate的宾语。(A)和(D)不能作宾语,可首先排除。(B)使句子结构混乱、语义不清,因此选择(D),构成宾语从句。 n x4:n@J
五、介词+ which结构 8! eYax
许多同学在选择which还是介词+which上总是不太明白,这里有一个技巧可以告诉大家。 USd7gOq(
“which”后面一定加一个缺主语或者宾语的句子, .ni<'
因为“which”在这个句子中作了宾语或者主语成分。 gZq
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“介词+ which”后面则跟一个完整的句子, Br4[hUV/
因为”介词+which”整个结构在定语从句中作状语。 f[}(E
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例1:In the United States, a primary election is q7z`oK5
a method ---- voters select the nominees ;n,xu0/
for public office. 6|uv+$
(A) that moS0y?N
(B)by which QL]e<2oPJ
(C)is that O
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(D)by those )
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分析:空格前后都是句子,因此缺从句引导词或连接词,首先排除C和D。 {ty)2
A能够引导从句,但是根据题意,修饰method是不通的。 rjK]zD9
B是介词+which, 引导定语从句,(大选是一种方法,根据这个方法,选民怎么….);正确 36e
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例2: Croquet is a popular lawn game ------ players W{m_yEOf
hit wooden balls through wire arches called mqtX7rej
wickers. JR_%v=n~x
(A) when J6J">
(B) which `G0k)eW
(C) is when 9;7Gzr6A"
(D) in which j*\oK@
分析:空格前后都是完整的句子,空格处缺定语从句引导词,由此首先排除(A)和(C)。但是到底是选择B还是D,则看从句,从句是完整的句子,那么一定选择D, 关系代词which 前应该有介词。 Nj;5iy
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六、in that结构 nz|6CP
在表示“原因”概念的引导词中, 3n,jrX75u
because of +名词, jB<B_"
consequently是副词 4VF4 8
而“in that”是原因状语的引导词。 EXMW,
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例1:Mercury differs from other industrial metals x<h|$$4S
---- it is a liquid. tD*
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(A) whereas 0K'{w]Q
(B) in that <2d)4@B=
(C) because of D6~KLSKm
(D) consequently denxcDFu/~
分析:空格前后都是完整的句子,空格处显然缺从句引导词。C、D不能引导从句,可以首先排除。 mPU}]1*p
根据题意,两个句子之间是因果关系而不是对比关系,故选(B)。in that为复合连词,用来引导原因状语从句。 AyWdJ<OU
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例2:Hovercraft, or air-cushion vehicles, are unusual #|K{txC
-- travel over land and water on a layer of air. el U %Z9
(A)they =igTY1|af
(B)in they fF(AvMsO
(C)that they ~5&B#Sm[G
(D)in that they )w~1VcnJEp
分析:空格处缺从句引导词和从句主语。A和B缺从句引导词,首先被排除。C一般作宾语从句或定语从句,而句中需要的是状语从句,故也排除。D中in that为连词,引导表原因的状语从句,符合题意(气垫船之所以不同,是因为……),故选D。 %%F,G
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这里我们再重申一下,如果选项中出现“介词+which”或者“in that”,那么首先考虑这个选项,如果后面使用的是完整的句子结构,那么这个选项就一定是答案。这种题目平时出现的不多,但是要考的话一定就是重点。 T;5VNRgpI
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例3:Emily Dickinson's garden was a place ------ CuK>1_Dq
great inspiration for her poems. ia3Q1 9r
(A) that she drew r&Nh>6<&/
(B) by drawing her e,{k!BXU#'
(C) from which she drew Gk+R,:
(D) drawn from which `y61Bz
分析:首先看选项C, “介词+which”, 而后面是she drew great inspiration for her poems.是一个完整句子,那么选项C就是答案。 xe^M2$clb\
七、what结构 XlD=<$Nk7
what结构在95.8以后的新题中考的非常多,记住一点: qtdkK LT
what=the thing that tvf5b8(Y-
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例1:The chief foods eaten in any country depend 5k@T{
largely on ----- best in its climate and soil. )5n0P
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(A) it grows 1) K<x
(B) what grows j
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(C) does it grow y\j[\UZKO
(D) what does it grow 9od c :
分析:空格前有depend on这个短语,四个选项都是句子,故可判断出空格处为宾语从句。A和C没有从句引导词,故排除,(D)的语序有问题,从句不能用特殊疑问句的倒装形式,故(B)正确。 `q\F C[W
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例2:During the eighteenth century, Little Turtle lAA-#YG
was chief of the Miami tribe whose territory 5x|$q kI
became----is now Indiana and Ohio. "9dZ
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(A) there S"@6,
(B) where J/D~]U
(C) that 43y@9P0
(D) what 4OLYB9HP_
分析:空格处缺的词既要引导从句又要作从句主语。四个选项中只有D符合条件。 GFE
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八、同位语结构 c$)>$&([
同位语考试形式一:名词作主语,主语同位语 6T+y m9
___, __ _, ___ (注意是两个逗号) =w;-4
例1:The tongue , -----, is an important aid in chewing w2V:x[
and swallowing . KztQT9kY
(A) is the chief organ of taste N-b'O`C
(B) tasting the organ chiefly ^tSwA anP\
(C) the chief organ of taste A@?-"=h}
(D) the organ chiefly tastes |OAiHSW"V
分析:空格处显然缺定语或同位语。句中已有谓语动词is, 故先排除A和D。(B)不合题意,故也可排除。(C)是名词短语,适合作主语的同位语,使句子完整,句意正确,故选(C)。 !gV{[j?~zr
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同位语考试形式二:名词作主语,后面的名词是主语同位语,解释说明后面的名词 op2Zf?Bx{+
___, ___ (注意是一个逗号) 4`9R
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例2:A prolific writer of prose and verse, ----of M6
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Native Americans in her novel, Century of js;YSg{m
Dishonor. q&3(yhx
(A) Helen Hunt Jackson took up the cause zsd<0^
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(B) the cause taken up by Helen Hunt Jackson nL[OwfPj
(C) was Helen Hunt Jackson's cause +t*I{X(
(D) the cause that Helen Hunt Jackson took up. g,o46`6"
分析:空格前为名词短语,空格后为介词短语,空格处明显缺主语和谓语动词。根据空格前名词短语的意思判断,主语应该是人名而不是指物的名词,故选(A)。 i"Hc( lg
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例3:Often very annoying weeds ,-----and act as }#M>CNi'PU
hosts to many insect pests. +\dKe[j{g
(A) that crowd out less hardy plants than yKK9b
goldenrods @p/"]zf
(B) crowding out less hardy plants by goldenrods [e_csQ
(C) the goldenrod's crowding out of less hardy J(~1mIJjC
plants P*}aeu&lnD
(D) goldenrods crowd out less hardy plants B]b/(Q+
分析:空格后面是and, 句中缺少与and并列的谓语动词。A只有从句没有主句; B,C分别是分词和名词短语, 无法与动词act并列; D 包含主语的同位语goldenrods和谓语动词crowd。 nFI<Te^)
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同位语考试形式三:主谓宾后面出现一个名词,那么名词可以作宾语或者表语的同位语 wL]#]DiE
例4:An Olympic marathon is 26 miles and 385 ,afO\oe>MG
yards, approximately ---- from Marathon to |=~mRqG
Athens. _akjgwu
(A) the distance is vr?u=_%Z
(B) that the distance is 9&Y|,&W
(C) is that the distance $\1M"a}F
(D) the distance /CKn XU;
分析:逗号前为完整的句子,后面如果再接句子一定要有连接词或者从句引导词。A、B、C均为主谓结构,但都没有从句引导词,故排除。D是名词短语作表语同位语,故选(D)。 S1~K.<B
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九、比较结构 +eKLwM
比较结构中要注意两点:1、倒装性;2、对称性 *:un+k
例1:Western Nebraska generally receives less UmMu|`
snow than --eastern Nebraska. -k2|`
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(A) does 7h41 E#
(B) in Ly2!(,FB.
(C) it does in B Nb_i H
(D) in it does ZWjje6
分析:than引导比较状语从句,空格后面是个专有名词,肯定是比较从句的主语,空格处明显缺从句的谓语动词,只有(A)符合条件,故选(A)。注意than eastern Nebraska does 是正确的语序,但是原文中使用了倒装;在比较结构的后面部分中,如果比较从句的主语长,谓语动词短,动词可放到主语前面进行到装。 s`[V{1m,
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例2: Hot objects emit----- do cold objects. g`.H)36
(A) rays more than infrared q@VIFmqY!
(B) rays are more infrared than saQo]6#
(C) more than infrared rays Z0'LD
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(D) more infrared rays than ZZ :*c"b:
分析:emit为及物动词,空格处缺宾语和引导比较从句的than, 只有(D)符合条件。注意空格后为倒装形式,do代替emit以避免重复。此题为常考的句子结构。 ]-a/)8
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比较结构中还需要注意相互比较的必须属于同一种事物 SJ;{ Hg
例3:The activities of the international marketing [ z/G
researcher are frequently much broader than ----. Q.V@Sawe5
(A) the domestic marketer has s,/C^E
(B) the domestic marketer does ~+Cl9:4T
(C) those of the domestic marketer 'iwTvkf{
(D) that which has the domestic marketer ma QxU(
分析:本题还是考查比较句,由于谓语动词是系动词are, 故先排除与其不对应的以has和does结尾的(A)和(B)。选项D则语义不清,也可排除。C中those代替前面提到的activities以避免重复,those一定要具备,因为只有这样才能满足比较的都是activities,谓语动词are因与主句谓语动词相同而被省略,因此C为正确答案。 n? =O@yq
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例4:The annual worth of Utah's manufacturing BV/ ^S.~
is greater than --. meThjCC
(A) that of its mining and farming combined
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(B) mining and farming combination Wap\J7NY
(C) that mining and farming combined pRsIi_~&
(D) of its combination mining and farming A5%Now;.cf
分析:本题为比较句,一般来说,比较的双方应属于同一类事物。句中主语显然是比较的一方,而空格处应是与之相对应的另一方。(B)、(C)、(D)均无法与the annual worth相对应,故可以排除。(A)中代词that代替 the annual worth, 是英语中常见的避免重复的用法,故选(A)。 5UK}AkEe&x
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十、定语从句省略结构 j9/iBK\Y
关系代词在定语从句中做宾语时可以省略 h+YPyeAs
例1:Most crocodiles will eat anything----capture h{j
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and overpower. %Br1b6 V
(A) can Ia{t/IX\[
(B) they can L$, Kdpj
(C) which can 5;XU6Rz!
(D) and K,P`V
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分析:空格前是个完整句子,空格后是两个并列的及物动词,后面却没有宾语,由此可推断出空格处缺能作从句宾语的从句引导词和从句主语。(A)、(D)没有从句引导词,可首先排除。(C)有从句引导词,也可作从句的宾语,却没有从句主语。正确答案(B)看似没有从句引导词,实际上是省略了引导词that,故选(B)。that they can capture, that引导定语从句在句子中做capture的宾语。 \t&8J+%
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例2:A majority of people in the United States can 9Nz}'a;?>
get all the calcium their bodies----from the 1n.F`%YG
food they eat. 4JH^R^O<n
(A) require 9"M-nH*<
(B) requires XN3'k[
(C) requiring - xyY6bxL
(D)to require i
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分析:此题显然缺从句谓语动词,故首先排除(C)和(D)。(B)为第三人称单数形式,与主语bodies相矛盾,故也可排除,因此选择A。 yU~wZjw
their bodies require from the food they eat是定语从句修饰calcium, 省略了that; 实际上they eat也是定语从句省略了that修饰the food Kz]\o"K
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“介词+名词”在定语从句中做表语时,关系代词和be动词可以同时省略,剩下的形容词短语做名词的后置定语。 .^ba*qb`{
例3:To produce one pound of honey , a colony of dtV7YPz4+
A ZF<$6"4N
bees must fly a distance equals to twice around 7WNUHLEt
B C D rfh`;G5s
the world. =C7<I
分析:句子中实际上是省略了that is, a distance that is equal to, 因此equals to 应该改为equal to }+)q/]%
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例4: A neutron star forms when a star much more massive 7eFFKl
A B C [mG!-.ll
than the Sun dies and exploded. |2jA4C2L}
D sWVapup?
分析:句中省略了which is, a star which is much more 9!dG Xq
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十一、状语从句省略结构 q5)
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Metals expand when they are heated. I 6L3M\+-
Metals expand 是主句;when they are heated 是状语从句。但是这个状语从句中可以省略掉they are, 句子变成:Metals expand when heated. 但是并不是所有的状语从句都可以这么省略。这种省略从句主语的方式理论上需要满足以下两个条件: 7oCY@>(f
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第一、从句主语和主句主语必须保持一致; F&7^M0x\ O
第二、从句的谓语必须是be动词,主语和be动词同进同出, c+##!_[9
比如上面的they和are要么同时省略,要么同时保留。 S.pXo'}
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例1:Although----rigid, bones exhibit a degree of 1E0!?kRK
elasticity that enables the skeleton to withstand }%D${.R]
considerable impact. .fS{j$
(A) apparently gJ>#HEkMB
(B) are apparently f*VXg[&\\F
(C) apparently their VLoRS)
(D) are they apparently $"MGu^0;1
分析:连词although通常引导主谓完整的状语从句,当从句主语与主句主语相同、从句谓语又为系表结构时,则可省略主语和连系动词,故正确答案为(A)。Although apparently rigid = Although bones are apparently rigid, 注意bones和are必须同时省略。 LZQG.
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因此,我们从上面的例题中来分析一下填空题中状语从句省略以后的形式: Hoi~(Vc.
though, although, even thought, while, If, when等为引导状语从句的词; \ rKUPI\
这些词后面一定+形容词(分词),主句(注意逗号的后面是主句,前面是从句) TV`sqKW
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例2:All marble is composed of crystals of the n'%cO]nSx
minerals calcite or dolomite, ----, are perfectly F)@zo/u5L
white. tvJl&{-OX
(A) when, pure which q Ll4t/p
(B) when, which pure qxYCT
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(C) which, pure when 12: Q`
(D) which, when pure y.(m#&T
分析:空格前是个完整的句子,空格后是系表结构,空格处显然缺非限定性定语从句的引导词兼作从句主语。(A)、(B)不引导非限定性定语从句,可首先排除。(C)中的pure和when位置错了,故选(D)。注意when pure是插入语,同时也是省略用法when they are pure;which are perfectly white, 状语从句省略结构, G&4D0f
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例3:--relatively costly, the diesel engine 0wAB;|~*62
is highly efficient and needs servicing w4zp%`?D'
infrequently U!YoZ?
(A) Even ?v'CuWS
(B) It is ^N`KT
(C) Even though n8D'fvY
(D) There is xn)F(P 0kv
分析:B和D填入后,都是构成两个主句,不对;Even though则引导状语从句,even though it is, 这里it is 已经省略。 %=V"
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十二、动词ing+名词的复数作主语结构 6j|~oMYP
这是一个比较难的结构,因为许多同学经常混淆动名词和现在分词。 rA@|nL{
现在分词相当于形容词,和后面的名词是修饰与被修饰的关系; jaMpi^
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动名词是相当于具有动词特征的名词,和后面的名词是动宾关系。 yA7O<p+
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那么如何在句子中判断动名词和现在分词呢?我们来看两个例子: G=C2l#
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Doing exercises is a good habit. 做练习是一个好习惯。 P$3!4D[
The starring troops have to surrender. ?zVcP=p@
第一个句子强调的是做,而不是练习,不能说练习是一个好习惯,只能说做练习是一个好习惯,因此do是中心词,它和后面的名词是动宾关系,那么这个do就是动名词; {96NtR0Z
第二个句子说挨饿的军队必须投降,是军队投降,而不是挨饿要投降,因此中心词是troop,starring是来修饰troop的,因此starring是现在分词。 7
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在“动词ing+名词的复数”作主语结构的句子中,谓语动词是系动词is C[+?gQJ[9
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例1:--by transferring the blame to others is often L$ jii
called scapegoating. '8I=Tn
(A) Eliminate problems KCqz]
(B) The eliminated problems(被消除的问题) w2U]RI\?2
(C) Eliminating problems $0]5b{i]
(D) Problems are eliminated jASK!3pY
分析:空格处缺主语。(A)不能作主语,(B)的名词为复数,与后面谓语动词相矛盾,(D)使句子出现两个谓语,故排除。(C)构成动名词短语,可作句中主语,故选(C)。这个题目的意思是通过把责任转嫁给别人,这种消除问题的方式,通常叫做替罪羊。 m5hu;>gt
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例2:--wooden buildings helps to protect them % 5BSXAc
from damage due to weather. lHu/pSu@k
(A) Painting =E~_F>SD
(B) Painted U1kW1L}B
(C) The paint !'>#!S~h3
(D) By painting `"$9L[>
分析:从谓语动词helps可判断出主语不可能为buildings, 因为主谓语在数上不一致,故空格处缺构成单数的词。四个选项中只有动名词painting符合这一条件,故选(A)。(B)构成复数名词短语,(C)无法与后面的名词连接,(D)构成介词短语,不能作主语,三个选项都可排除。 Kke
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painted wooden buildings 被油漆的房子,中心词是buildings, 后面help不能用单数 5+)_d%v=6!
painting wooden buildings油漆房子这件事情,中心词是painting u#->?
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例3:Scientists think -- helps some tree to g~OG~g@
conserve water in the winter. *Ym+xu_5
(A) when losing leaves 0s.4]Zg>5
(B) leaves are lost ^;Yjs.bI`F
(C) that losing leaves AP?m,nd6
(D) the leaves losing 6p14BruV
分析:这道题目大家都能够选择C, 但是我们必须彻底理解C为什么正确,think that后面是宾语从句。losing是及物动词,丢弃叶子帮助树来保持水分,要注意不是树叶来帮助保持水分,而是丢弃树叶这个动作来保持水分。丢弃叶子是树主动丢弃,因此losing是动名词。 vLCm,Bb2L
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十三、make结构 .O
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make结构即为:make +sth.(宾语) +possible+(宾语补足语) K%/g!t)
共有三种形式: "(:8$Fb
make it possible+to do JJP!9<
make it possible+that引导的从句 2}ywNVS
make possible sth (这个sth一定很长,它后面有一个后置定语) _^^5
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做题技巧: jgw+c3^R_
如果possible后面有to do 或者that引导的定语从句, 中间一定有it j*_#{niy:
如果possible后面有名词,中间一定没有it yLt>OA<X
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例1:X-rays are able to pass through objects and ~@iYP/=/Q
thus make--details that are otherwise ?/KkN3Y_j[
impossible to observe . ?:RWHe.P
(A) it visible T{ /\q 5
(B) visibly m] @o1J
(C) visible IPnx5#eB
(D) they are visible jL~. =QD
分析:此题考动词make的一种用法,visible后面有名词,因此中间不能有it,选择C;可以看到空格后that引导的是定语从句,visible是宾语补足语,宾语补足语的存在是因为宾语太长了,details是宾语。
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例2:Using many symbols makes--to put a large
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amount of information on a single map. P/dT;YhL
(A) possible \J{%xW>
(B) it possible F#7A6|
(C) it is possible TfFH!1^+
(D) that possible qg8T}y>
分析:从四个选项可以判断出本题考make的一种惯用法。首先排除明显的错误选项:C为句子,却没有与主句相连的连词,D中that后面应有主语并构成结构完整的从句。 由于后面是动词不定式,因此possible前面一定有it, it作形式宾语,故B正确。 ZRoOdo94
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十四、the more …the more…结构 %ZZW
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这个结构的意思是“越….越…”,结构一共有三条规则: +?bOGUik
1. the more后面的名词必须使用冠词或者所有格, 新题专门考这条规则 UmA'aq
2. the more 后面的谓语如果是be动词的话,可以省略,例如上面的例题 ITEd[
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3. 第二个the more 后面可以使用倒装,而第一个后面却不行 bA3pDt).p
the more, the more其实是原因状语从句,前面是原因,后面是结果,倒装句中必须是主句倒装,从句绝对不能够倒装。 o2NU~Ub
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例1:The stronger--magnet, the greater the 4krK CD>|G
number of lines of magnetic force. _#6ekl|%
(A) of Q::6|B,G
(B) the Wq]Lb:&