题目内容
19．-Water covers most parts of the earth．-Yes，about ______of the earth is covered with water．（ ）
| A． | one fourth | B． | half | C． | three quarters |
分析 -水覆盖了地球的大部分．-是的，大约四分之三的地球被水所覆盖．
解答 答案：C a quarter四分之一；three quarters四分之三；是固定短语，所以不再用分数的一般表达法，排除A；根据常识可知水覆盖了地球表面的四分之三，故选C．
点评 本题考查了分数的表达法．分子用基数词，分母用序数词，当分子大于1时，分母后要加s．此题是特殊的分数表达，记住quarter，并注意学科间的联系．
练习册系列答案
相关题目
7．-Don't smoke here．Please look at the sign．
-__________．（ ）
-__________．（ ）
| A． | That's good | B． | It doesn't matter | ||
| C． | You're welcome | D． | Oh，sorry |
14．---Can you tell me ______________？
---His home is quite far away from the office，I think．（ ）
---His home is quite far away from the office，I think．（ ）
| A． | when he got up | B． | where he works | ||
| C． | why he bought the car | D． | how he likes his job |
1．阅读下面的短文，根据短文内容从每题所给的A、B、C三个选项中选出最佳选项．
56．If you want Joan to do the housework for four hours，you have to pay．A
A．￥16． B．￥40． C．￥50．
57．If you need an old bike，you can call．A
A.888-58349． B.888-59478． C.888-53436．
58．You can ask Mrs．Brown to help you．C
A．look for your bike． B．do some cleaning． C．improve your singing．
| For sale Do you want to buy a good bike at a good price？ Used26''black and white bike． ￥50 Call Jack at 888-58349 |
| Tired of housework？ Give Joan a call! Joan can help you sweep the floor，clean windows and wash dishes! ￥4 an hour! Call 888-59478 |
| Singing lessons for all ages! Be popular at parties! Make your dreams come true! Pay￥10 and you can learn two lessons! 20 years'teaching experience． Call Mrs．Brown at 888-53436 |
A．￥16． B．￥40． C．￥50．
57．If you need an old bike，you can call．A
A.888-58349． B.888-59478． C.888-53436．
58．You can ask Mrs．Brown to help you．C
A．look for your bike． B．do some cleaning． C．improve your singing．
5．-__________ does Tim go to a movie？-Twice a month．（ ）
| A． | How long | B． | How long | C． | How often |
6．I didn't know which dictionary was better，so I took ________．（ ）
| A． | none | B． | neither | C． | each |