Question

选择答案 1.During the twentieth century , there has been much concern ___ the

选择答案
1.During the twentieth century , there has been much concern ___ the relationship between social conditions and mental health.
A.over B.at C.on D.of

2.The concepts behind the laws of probability ___ all of statistical mechanics.
A.to enter into fundamentally B.they fundamentally enter into C.fundamentally entering into D.enter fundamentally into

3.Not until the 1930s,when the value of sorghum as grain, forage ,and silage for livestock for livestock feeding was recognized,__.
A.increasing acreage began B.its acreage began to increase C.did its acreage begin to increase D.with the increasing acreage began

4.It is difficult for the casual observer to distinguish ___ artificial and natural lakes.
A.from B.among C.with D.between
5.___ election to the Georgia House of Representatives in 1965.
A.Julian Bond won B.When Julian Bond won C.That Julian Bond won D.Julian Bond's winning
6.Around the world ___ may be as many as a million earthquakes in a single year.
A.it B.they C.there D.ever
[解释为何其他答案错，解释整题]

Answer 1

1. 选A
concern over 对...的关心/焦虑
concern 作为名词，一般不跟at/on搭配，而concern of 一般后面跟人，表示“某人的担心”
翻译：在二十世纪，很多人都关注到社会环境和心理健康的关系。
2. 选C
先看这个句子的结构，主语是The concepts behind the laws of probability ，宾语是all of statistical mechanics，所以咱们要在这里选择一个谓语动词。A不定式，不能当谓语动词，排除。B有个they，主语重复了，排除。而enter into是一个固定短语，意思是：成为...的一部分，不能把状语插入这个词组，所以D排除。
翻译：概率定律中的概念从根本上来说是所有的统计力学的一部分。
3. 选C
这是not until的倒装用法。not until在句首，一般主句要用倒装。when在这里引导的是状语从句，把它拿掉，这个句子就成为：
Not until the 1930s，did its acreage begin to increase.
在这个句子中，两个状语从句分别由not until和when引导，缺少的是主句，所以A分词短语和Dwith引导的介词短语，两个都不能成为主句，因此排除。而B未用倒装，错误。
翻译：直到20世纪30年代，当高粱作为粮食、饲料和家畜的青贮饲料的价值被大家承认后，它的种植面积才开始增加。
4. 填D
distinguish between/among：区别,区分,分清，两者之间用between，三者以上用among
翻译：对非专业观察人员来说，很难区分人工湖和自然湖。
5. 填A
句子缺少主语和谓语，除了A，其它几个选项引导的都不是主语和谓语。
翻译：朱利安邦德在1965年乔治亚洲众议院的选举中获胜了。
6. 选C
这个句子只能用there be的句型
全世界每年大约有一百万次地震。