题目内容
10．_____ is known，more students tend to study abroad after graduation from senior high．（ ）| A． | As | B． | It | C． | What | D． | That |
分析 众所周知，更多的学生倾向于高中毕业后去国外深造．
解答 答案：A．
本句为一个非限制性定语从句，从句中缺少主语，所以根据选择可知，只有as可以引导非限制性定语从句，故选A．如果选B，可以把it看做是形式主语，则后面需要在known后面加上一个that引导一个主语从句，即It is known that more students tend to study abroad after graduation from senior high；选C的话则是what引导一个主语从句，则后面需要在known后面加上一个is that，that引导的是一个表语从句，即What is known is that more students tend to study abroad after graduation from senior high；而D项则难以讲得通，可排除．
点评 多识记一些as引导非限制性定语从句的常用句型：as is often the case； as is said/mentioned/reported above； as I told you before； as often happens； as is/was expected； as I can remember等．
练习册系列答案
互动课堂系列答案
激活思维智能训练课时导学练系列答案
相关题目
2．-How are things going，Jenny？
-They have set out to deal with the present situation ______ they think deserves their immediately attention．（ ）
-They have set out to deal with the present situation ______ they think deserves their immediately attention．（ ）
| A． | what | B． | where | C． | when | D． | which |
1． is reported in the newspaper，the air pollution in some big cities，such as Beijing and Wuhan，has become more and more serious．（ ）
| A． | That | B． | Which | C． | As | D． | What |
18．We'd better take umbrellas---I'm sure it____when we arrive in London； it's always wet there at this time of year．（ ）
| A． | will rain | B． | is raining | C． | will be raining | D． | would rain |
5．---The soup is too salty．You a lot of salt in it．
---Oh!I put in salt instead of sugar．（ ）
---Oh!I put in salt instead of sugar．（ ）
| A． | should put | B． | could have put | C． | might put | D． | must have put |
15．I'll look into the matter as soon as possible．Just have a little ______．（ ）
| A． | wait | B． | time | C． | rest | D． | patience |
3．Urbanization
Until relatively recently，the vast majority of human beings lived and died without ever seeing a city．The first city was probably founded no more than 5，500years ago．（71）E．In fact，nearly everyone lived on farms or in
tiny rural （乡村的） villages．It was not until the 20th century that Great Britain became the first urban society in
history-a society in which the majority of people live in cities and do not farm for a living．
Britain was only the beginning．（72）D．The process of urbanization-the migration （迁移） of people from the countryside to the city-was the result of modernization，which has rapidly transformed how people live and
where they live．
In 1990，fewer than 40% of Americans lived in urban areas．Today，over 82% of Americans live in cities．Only about 2% live on farms．（73）B．
Large cities were impossible until agriculture became industrialized．Even in advanced agricultural societies．It took about ninety-five people on farms to feed five people in cities．（74）A．Until modern times，those living in cities were mainly the ruling elite（精英） and the servants，laborers and professionals who served them．Cities
survived by taxing farmers and were limited in size by the amount of surplus food that the rural population produced and by the ability to move this surplus from farm to city．
Over the past two centuries，the Industrial Revolution has broken this balance between the city and the country．（75）F．Today，instead of needing ninety-five farmers to feed five city people，one American farmer is able to feed more than a hundred non-farmers．
Until relatively recently，the vast majority of human beings lived and died without ever seeing a city．The first city was probably founded no more than 5，500years ago．（71）E．In fact，nearly everyone lived on farms or in
tiny rural （乡村的） villages．It was not until the 20th century that Great Britain became the first urban society in
history-a society in which the majority of people live in cities and do not farm for a living．
Britain was only the beginning．（72）D．The process of urbanization-the migration （迁移） of people from the countryside to the city-was the result of modernization，which has rapidly transformed how people live and
where they live．
In 1990，fewer than 40% of Americans lived in urban areas．Today，over 82% of Americans live in cities．Only about 2% live on farms．（73）B．
Large cities were impossible until agriculture became industrialized．Even in advanced agricultural societies．It took about ninety-five people on farms to feed five people in cities．（74）A．Until modern times，those living in cities were mainly the ruling elite（精英） and the servants，laborers and professionals who served them．Cities
survived by taxing farmers and were limited in size by the amount of surplus food that the rural population produced and by the ability to move this surplus from farm to city．
Over the past two centuries，the Industrial Revolution has broken this balance between the city and the country．（75）F．Today，instead of needing ninety-five farmers to feed five city people，one American farmer is able to feed more than a hundred non-farmers．
| A．That kept cities very small． B．The rest live in small towns． C．The effects of urban living on people should be considered． D．Soon many other industrial nations become urban societies． E．But even 200years ago，only a few people could live in cities． F．Modernization drew people to the cities and made farmers more productive． G．Modern cities have destroyed social relations and the health of human beings． |
11．I can't move into my new house yet because it ______（ ）
| A． | is decorated | B． | is being decorated | ||
| C． | is decorating | D． | has been decorated |