随堂演练
必修2-Unit 3
Ⅰ.单词拼写
1．Don't disturb your brother. He is busy ________(计算)a problem.
2．The teacher was asked to ________(简化)the instructions so that the children could understand them.
3．All ________(电子的)computers consist of five units although they are of different kinds.
4．When the computer is stopped in this way, it can only be restarted by the ________(操作员)．
5．They have made great progress in machine translation and artificial ________(智能)．
6．As a secretary, I answer telephones and do some ________(打字)．
7．The famous scientist never returned when he __________(探索)the desert region in 1979.
8．Your new __________(目标) is to preserve the picture, protect it, and communicate through it.
9．The software ________(下载)on the Internet must be installed properly.
10．I saw your sister ________(徘徊) in the street when I passed by the other day.
答案
1．calculating 2.simplify 3.electronic 4.operator
5．intelligence 6.typing 7.explored 8.goal
9．downloaded 10.wandering
Ⅱ.用所给词的适当形式填空
1．What role did new ________ (technological) play in the spread of mass culture at the turn of the 20th century?
2．Money does not always bring ________ (happy), but without it people often can't live well.
3．We should not judge a person by his ________ (appear) but people make that mistake from time to time.
4．Her speech yesterday was a ________ (sign) that her views have changed, so you can turn to her.
5．After the president made an official announcement, he expressed his personal opinion. ________ (person) speaking, I agreed with him.
6．I would like to apply for the job advertised in the newspaper, so I have sent my ________ (apply) before July 20, 2015.
7．We must ________ (exploration) all the possibilities for the solution of the problem.
8．Sunny, hot days are the ________ (character) weather of the summer months.
9．The application form has now been ________ (simple)．
10．They are ________ (intelligence), hardworking and lively students.
答案
1．technology 2.happiness 3.appearance
4．signal 5.Personally 6.application 7.explore
8．characteristic 9.simplified 10.intelligent
Ⅲ.单句语法填空
1．The wine they made was ________ high quality.
2．I am a ________ (devote) friend and helper of the human race.
3．By the time he graduated from high school, he ________ (learn) five thousand words.
4．I wonder if he is any ________ (well) now.
5．Since the 1970s, our life ________ (change) a great deal.
6．________ she comes, she will be welcomed by the dog.
7．He devoted his life to ________ (explore) the natural world.
8．He provided fresh fruit ________ the supermarket.
9．The team ________ (consist) of twelve girls won the game.
10．________ time went by, the colour of the wall faded out.
答案与解析
1．of of high quality 具有高质量。
2．devoted devoted 忠实的。
3．had learned “by＋过去的时间”作状语，句子采用过去完成时。
4．better any 后跟形容词的比较级。
5．has changed since...作状语，谓语动词采用现在完成时。
6．Whenever whenever 引导让步状语从句，意为“无论何时”。
7．exploring devote...to doing 把……献给……。
8．for provide sth. for sb. 为某人提供某物。
9．consisting consist of“由……组成”，无被动语态形式，常用现在分词作定语。
10．As as time went by 随着时光流逝。
Ⅳ.课文语法填空
Computers are becoming more and more popular. __1__， few can imagine what the __2__ (origin) computers looked like. At the beginning, a computer was the __3__ of a large room. With time __4__ (go) by, computers have been made smaller and smaller. The size of computers __5__ (total) changed after they were __6__ (equip) with new transistors. Later, computers were __7__ (connect) by a network. With it people can share information __8__ each other and even communicate with each other. Since then, computers __9__ (come) into millions of homes. People's lives have become easier and more __10__ (comfort) because of the Internet.
答案
1．However 2.original 3.size 4.going 5.totally
6．equipped 7.connected 8.with 9.have come
10．comfortable