6) A错。此处的them指主语plants，rid是及物动词，由于主语与宾语指同一物，故应使用反身代词(2)themselves。
7) D错。 改为for himself。
IV 不 定 代 词
一、“every”(每一个)只作为定语使用，即必须在其后加上单数可数名词构成名词短语，它不可与everyone(每一个)混淆。 everyone相当于名词，它不可修饰其他名词，只作主语或宾语
1) Every ［A］ knows that hospitals are institutions where the sick are treated， but how many ［B］ realize that they were once ［C］ homes for the indigent and the friendless ［D］ ?
2) Everyone ［A］ child in the United States must ［B］ receive ［C］ some form of educational instruction ［D］ .
二、“much”和“many”分别修饰不可数名词和可数名词，可作为代词(2)(如much of)和形容词使用
3) Food seasoning plays an important ［A］ role in the cooking ［B］ customs of much ［C］ cultures in ［D］ the world.
4) The general sales tax has been ［A］ a major source of income for state governments， much ［B］ of which derive more than half ［C］ of their budgets from ［D］ it.
5) Data received from ［A］ two spacecraft indicate that there is many evidence ［B］ that huge thunderstorms are now occurring ［C］ around the equator ［D］ of the planet Saturn.
三、 “some”和“any”是表示不定数量的代词(2)，相当于汉语的“一些”，作定语可修饰可数名词复数或不可数名词，其中some(包括它的合成词something,someone, somebody)多用于肯定句，而any(包括它的合成词anything, anyone, anybody)则用于疑问句和否定句中，其中any在否定句中相当于汉语中的“任何”；形容词修饰something, someone, somebody, anything, anyone, anybody, nothing, nobody时，形容词要放在这些词的后边
6) Historians ［A］ have never reached some general ［B］ agreement about ［C］ the precise causes of the ［D］ Civil War in the United States.
四、“another”和“other”分别表示“另外的一个”(an＋other)和“另外的”“其余的”意思，可以用作定语修饰名词或单独作主语与宾语，其中前者只用来修饰或指代单数可数名词，后者修饰单复数名词和不可数名词，二者不能相互混淆
7) Lizards lack ［A］ the builtin body temperature control ［B］ many another ［C］ creatures possess ［D］ .
8) Some bacterium are extremely ［A］ harmful， but anothers ［B］ are regularly ［C］ used in producing cheeses， crackers， and many other foods ［D］ .
9) Like ［A］ most another ［B］ art forms， the Greek tragedy had ［C］ its origins in religious ［D］ observances.
五、one与other “one”作为代词(2)代替前面提到的人或物，它前边加the； “other”作代词(2)修饰复数名词。 “one…another”表示“一个…另一个”的意思，或表示多个(三者以上)之中的“另一个”，“又一个”； “one…the other”表示两者之中剩下的“另一个，又一个”
10) I’d like to ［A］ buy a coat similar ［B］ to one ［C］ you are wearing ［D］ .
11) Though ［A］ Art Tatum was totally blind in one eye and had only slight ［B］ vision in another ［C］ ， he became ［D］ an internationally renowned jazz musician.
六、 “few”和“little”两者分别为“many”和“much”的反义词，表示“少，很少”的意思，有否定含义，即等于“几乎没有”，如若表示肯定的含义，则应在little和few前加不定冠词“a”，即变为“a few”和“a little”
12) Because they are generally ［A］ taken simply to obtain a recognizable ［B］ and relatively clear ［C］ image， most nonprefessional photographs demand few ［D］ equipment.
七、 “a great deal (of)” (大量)只作为限定语修饰不可数名词或在句中指代不可数名词作主语或宾语
13) of giftgiving， barter， buying and selling goes on among the Narvjos.
［A］ A great deal
［B］ A great many
［C］ Much greater
［D］ Many
八、“nothing but”表示“只不过，就是，只有”
He is nothing but a singer. 他只不过是个唱歌的。
Nothing but a miracle can save us. 只有奇迹才能救我们。
九、“anything but” 表示“根本不，并不”
She is anything but beautiful. 她并不美。
John is anything but a liar. 约翰决不是个骗子。
十、“something of” 表示“略有”
He has seen something of life. 他略有阅历。
I’m something of a cook. 我略懂烹饪。
(试比较)
He is not much of a scholar. 他算不上个很好(高明)的学者。
十一、“none other than”表示“就是”
The new arrival was none other than the President. 刚到的那人就是总统本人。
我们要注意none other than 与 other than 的区别，后者表示“与……不同”
I do not wish him other than he is. 我不希望他改变现状。
The truth is quite other than what we think. 事实与我们所想的不一样。
十二、“none”有时可作副词，表示“一点也不”
We did the work none to