[A] generate new seeds
[B] new seeds generated
[C] by generating new seeds
[D] new seeds generated there
另外,我们还要注意,两个分句之间的代词与名词、助动词与实义动词之间的代替,如:I rely on the system to fix itself, which it usually does with no help from me beyond crossing my fingers. 我以靠系统来修复系统本身,除了用几下手指之外,不需要我的其它帮助,系统经常这样修复自己。
3. 对等连词所连接的各成分应在词性和形式上的呼应
26) The purpose of the research had a more important meaning for them than .
[A] ours
[B] with us
[C] for ours it had
[D] it did for us
27) Methods of flood control focus on preventing rivers from rising and .
[A] keep them within their banks
[B] to keep them within their banks
[C] keeping them within their banks
[D] being kept them within their banks
28) Both dogs and cats have [A] a keen [B] sense [C] of smell, sight, and tasting [D] .
4. 排列位置的平行,对等连词前后成分的位置应呼应
29) A widespread species, roundworms even thrive on the peaks of mountains and .
[A] at the bottoms of the oceans
[B] there are the bottoms of the oceans
[C] the bottoms of the oceans do
[D] which the bottoms of the oceans
30) My cousin composes not only [A] the music, but [B] also sings the songs for [C] major [D] Broadway musicals.
四、关于几对容易混淆词组的用法
1. “a number of +复数名词”作主语谓语动词用复数形式
“the number of+复数名词”作主语谓语动词须用单数形式
31 The number of time A an object is magnified by [B] a telescope can be determined [C] by someone who knows [D] the focal length of the objective lens and of the eyepiece.
2. “an average(total) of +复数名词”作主语谓语动词用复数形式
“the average(total) of+复数名词”作主语谓语动词须用单数形式
3. “a lot(mass, heap等) of +复数名词”作主语谓语动词用复数形式
“a lot(mass, heap等) of+不可数名词”作主语谓语动词须用单数形式
4. “these(those) kinds of +名词”作主语谓语动词用复数形式
“this(that)kind(sort) of+名词”作主语谓语动词须用单数形式
5. “what kinds of +单数名词”作主语谓语动词用复数形式
“what kind of +单数名词”作主语谓语动词须用单数形式
6. “the rest of +复数名词”作主语谓语动词用复数形式
“the rest of+单数(不可数)名词”作主语谓语动词须用单数形式
7. “分数+of +复数名词”作主语谓语动词用复数形式
“分数+ of+单数(不可数)名词”作主语谓语动词须用单数形式
8. “most of +复数名词”作主语谓语动词用复数形式
“most of+单数(不可数)名词”作主语谓语动词须用单数形式
9. “plenty of +复数名词”作主语谓语动词用复数形式
“plenty of+单数(不可数)名词”作主语谓语动词须用单数形式
五、例题解析
1) B为正确答案。
2) B错。本句的主语为characteristic(特点),“of the galaxies”是其定语,所以谓语动词也应改为第三人称单数形式is。
3) A错。应改用单数library,以便和后面的谓语动词“was”在数上一致。
4) B错。应用has been。本句中的主语是“ensuring…supply”,它表示的是一个抽象的概念或现象,可以用代词it来代替,故其谓语动词应用第三人称单数形式。
5) C错。改为“is”。
6) B错。本句主语为recession(单数),故应将B处的谓语动词改用第三人称单数underscores。
7) B错。本句为一个定语从句,从句中的主语为system,所以谓语动词应改为is based。
8) A错。改为is。
9) D错。应改用复数philosophers,因为“one of …”是“其中之一”的意思,所以“one of ”之后须用复数形式。
10) C错。本句的主语应是one(单数),其后的“of the … States”是介词短语修饰one,故其谓语动词应用单数第三人称形式,即改用is。
11) C错。“one of”之后应用复数名词,故应将dancer改为dancers。
12) A错。应改用复数areas,以便和have(谓语动词)呼应。
13) A错。改为Doctors。
14) A错。改为maintain。
15) D错。本句是一个由“that”引导的定语从句,修饰先行词supply(单数),从句中的谓语动词为last(延续、持续),主语为that(代supply),故根据主谓一致的原则,应将last改为lasts。
16) C错。由于that引导的非限定性定语从句中的主语为an institution(一个机构),故应将have改为has。
17) B错。本句是一个定语从句,从句中的主语that代替“an alga and a fungas”,故谓语动词应用live。
18) A错。本句的主语为the novels(复数), 故谓语动词应用belong,“of John Cheever”是介词短语,作the novels 的定语。
19) B错。应改为think。本句的主语是people(集体名词),“who…city”是定语从句修饰people。
