题目内容
15．Practice more，_______ you'll catch up with your classmates soon．（ ）| A． | but | B． | and | C． | or |
分析 多练习，这样你就会很快追赶上你的同学们了．
解答 答案：B．
but意思是"但是"；and意思是"和，又"；or意思是"或者"根据"Practice more，_______ you'll catch up with your classmates soon．"通过分析句子结构可知，这个句子的结构是"祈使句，and+陈述句"这个结构相当于肯定的if条件句+陈述句，也就是原句可以变为：If you practice more，you'll catch up with your classmates soon．意思是如果你多练习的话，这样你就会很快追赶上你的同学们了．而"祈使句，or+陈述句"这个结构相当于否定的if条件句+陈述句．综上所述，故选B．
点评 首先要掌握这个句子的意思，然后结合具体的题目，就可以确定正确答案．
练习册系列答案
相关题目
6．假如你是Bob Green，这是你的全家福（全家照），请你根据表格中的信息，用英语对照片中的人物，介绍描述你的全家，50个单词左右．
My family
My name is BobGreen．This is a photo of my family．There are 4 people in my family，they are my parents，my sister and I．My father is Dale，the woman is my mother，her name is Mary，the girl is my sister Sally．Who is the boy，oh，it's me!I have a happy family．．
 | father | Dale |
| mother | Mary | |
| Sister brother | Sally | |
| Mike |
My name is BobGreen．This is a photo of my family．There are 4 people in my family，they are my parents，my sister and I．My father is Dale，the woman is my mother，her name is Mary，the girl is my sister Sally．Who is the boy，oh，it's me!I have a happy family．．
Last December，students at Duluth Edison Carter school in the US took part in a food drive（募捐）．They were on their way to collect food and other things for their local food bank．
7．Ma Yun，head of Alibaba，is one of ______ persons in the world．（ ）
| A． | rich | B． | richer | C． | richest | D． | the richest |
4．If you often have a cold，headache or backache，there is something wrong with your health．Eating healthy food（46）D good for our health．Tofu （豆腐），milk，vegetables are healthy for us．
Tofu is a kind of common（47）D food．We often（48）A it in China．Now more and more people（49）C other countries think tofu is good for health，（50）A．They also like eating it．
Milk is（51）C kind of healthy food．Every day you should（52）B one or two glasses of milk．It can keep us（53）A
Vegetables are very important．You should eat（54）D them，they are nutritious（有营养的）．
As we know，it's important to keep a balanced diet （均衡饮食）．We must have the right kinds of food．We should also eat some pork，chicken and beef．We should eat more fruit and vegetables（55）Cless meat．
Tofu is a kind of common（47）D food．We often（48）A it in China．Now more and more people（49）C other countries think tofu is good for health，（50）A．They also like eating it．
Milk is（51）C kind of healthy food．Every day you should（52）B one or two glasses of milk．It can keep us（53）A
Vegetables are very important．You should eat（54）D them，they are nutritious（有营养的）．
As we know，it's important to keep a balanced diet （均衡饮食）．We must have the right kinds of food．We should also eat some pork，chicken and beef．We should eat more fruit and vegetables（55）Cless meat．
| 46．A．are | B．was | C．will be | D．is |
| 47．A．Japancese | B．American | C．English | D．Chinese |
| 48．A．eat | B．drink | C．take | D．play |
| 49．A．for | B．with | C．in | D．at |
| 50．A．too | B．also | C．neither | D．either |
| 51．A．the other | B．other | C．another | D．others |
| 52．A．drinking | B．drink | C．take | D．to take |
| 53．A．strong | B．weak | C．thin | D．heavy |
| 54．A．a lot | B．plenty | C．much | D．a lot of |
| 55．A．as | B．never | C．but | D．though． |