With his attention________on the shops along the roadside，he knocked an old man down while riding to school.

A  concentrating     B．concentrated     C．to concentrate      D．concentrates

答案　B

解析　考查词组，故选B项。

D

解析：考查冠词的用法。第一空为短语：get a +adj+idea of sth.；第二空为特指，特指双方都知道的那个Project plan。

This dictionary tells you about English words and how to use them in reading, writing and speaking English. It not only gives the meaning of words, it can also help you with spelling, word building, grammar and pronunciation.
To use your dictionary correctly, you will find two spellings for this word. “Colour” is used in British English, while “color” is used in American English. When there are differences between British and American spelling, the dictionary shows it with the word “BrE” for British English and “AmE” for American English.
The dictionary also helps you pronounce words correctly. If you turn to the inside back face, you will see all the phonetic letters (音标 ) with some words to show you how they are pronounced. Just look at the inside back cover when you're not sure how to say a word.
The most important reason for using a dictionary is to find out the meaning of a word — its definition.
In this dictionary, the definitions have been written using only 2, 000 words. This means that the definitions of even the most difficult words are simple and easy to understand.

1. 1.

   ________ of the words in the dictionary have two spellings.

   1. A.
      All
   2. B.
      Some
   3. C.
      Few
   4. D.
      One
2. 2.

   What is the main reason for us to use a dictionary？

   1. A.
      To read the word correctly.
   2. B.
      To write the word out.
   3. C.
      To know the meaning of the word.
   4. D.
      To find the difference between British English and American English.
3. 3.

   The phonetic letters helps you ________ each word correctly.

   1. A.
      say
   2. B.
      write
   3. C.
      understand
   4. D.
      know
4. 4.

   The Chinese meaning of “definition” here is________.

   1. A.
      词性
   2. B.
      词条
   3. C.
      词义
   4. D.
      词库
5. 5.

   How many words are there in this dictionary?

   1. A.
      Two thousand.
   2. B.
      One thousand.
   3. C.
      One hundred.
   4. D.
      We don't know.

This dictionary tells you about English words and how to use them in reading, writing and speaking English. It not only gives the meaning of words, it can also help you with spelling, word-building, grammar and pronunciation.
To use your dictionary correctly, you need to understand how the dictionary works. At the front of the book, you will find some exercises to help you make the most use of your dictionary.
If you look up the word “colour”, you will find two spellings for this word. “Colour” is used in British English, while “color” is used in American English. When there are differences between British and American spelling, the dictionary shows it with the word “BrE” for British English and “AmE” for American English.
The dictionary also helps you pronounce words correctly. We use a special alphabet (特殊字母) to show pronunciation. If you turn to the inside back face, you will see all the phonetic letters (音标) with some words to show you how they are pronounced. Just look at the inside back cover when you’re not sure how to say a word.
The most important reason for using a dictionary is to find out the meaning of a word—its definition
In this dictionary, the definitions have been written using only 2000 words. This means that the definitions of even the most difficult words are simply explained and easy to understand.
When a word has more than one meaning, read all the meanings until you find the one that correctly tells the use of the word you are looking for.
Most of the words in this dictionary can be used by people in all parts of the world

1. 1.

   The AmE spelling of the Chinese word “颜色” in this dictionary is ________

   1. A.
      colour
   2. B.
      colar
   3. C.
      color
   4. D.
      corner
2. 2.

   The phonetic alphabet help you ________ each word correctly

   1. A.
      understand
   2. B.
      write
   3. C.
      say
   4. D.
      know
3. 3.

   The underlined word ‘definition’ means__________

   1. A.
      词性
   2. B.
      词条
   3. C.
      词义
   4. D.
      词库
4. 4.

   The dictionary explains ________

   1. A.
      some of the difficult words
   2. B.
      all the words in the dictionary in a simple way
   3. C.
      all easy words
   4. D.
      the words with two meanings