下面一組練習(xí)的內(nèi)容是說(shuō)電腦的發(fā)展情況. 練習(xí)的作法是老師念一個(gè)被動(dòng)語(yǔ) 態(tài)的現(xiàn)在完成時(shí)態(tài)句子,比方 "更好的電腦已經(jīng)設(shè)計(jì)出來(lái)了." Better computers have been designed. 接著老師念出名詞, 也就是動(dòng)作執(zhí)行者, 比方 "技師" technicians, 請(qǐng)你用老師給你的名詞把原來(lái)的句子改為現(xiàn)在完成時(shí)態(tài)的主動(dòng) 語(yǔ)態(tài)句子, 所以剛才那例子的答案就是: "技師一直在設(shè)計(jì)更好的電腦. " Technicians have been designing better computers. 這組練習(xí)比較難, 所以你要 特別注意. 每作完一句老師會(huì)念出正確答案,讓你作個(gè)比較, 看你作對(duì)了沒(méi)有.

M: Small computers have been made.

M: technicians

F: Technicians have been making small computers.

M: Better computers have been designed.

M: technicians

F: Technicians have been designing better computers.

M: Computer science courses have been studied.

M: many students

F: Many students have been studying computer science courses.

M: Computer science courses have been taken.

M: many students

F: Many students have been taking computer science courses.

M: Home computers have been bought.

M: a lot of people

F: A lot of people have been buying home computers.

M: computers have been used at home.

M: a lot of people

F: A lot of people have been using computers at home.

下面一組練習(xí)的作法是老師念一個(gè)現(xiàn)在完成進(jìn)行時(shí)態(tài)句子, 比方: "人們一直 用電腦來(lái)計(jì)算復(fù)雜的問(wèn)題. " People have been using computers to compute complex problems.接著老師念出一個(gè)詞組, 比方: "存放資料" store information, 請(qǐng)你把老師提出的詞組代換到原來(lái)的句子里,所以答案就是 People have been using computers to store information. 在這一組練習(xí)里你可以學(xué)到電腦的許多 用途, 比方: "記錄生意狀況" record business, "與別人溝通" communicate with others, "寄帳單給客戶(hù)" send bills to customers, "記下存貨數(shù)量" keep records of inventories, "記錄開(kāi)支數(shù)目" keep track of expenses, "開(kāi)關(guān)電動(dòng)器具" turn appliances on and off 等等. 這些詞匯你可能不太熟, 請(qǐng)你作練習(xí)的時(shí)候特別 注意聽(tīng), 每作完一句就聽(tīng)老師再把正確答案念一遍.

M: People have been using computers to compute complex problems.

M: store information

F: People have been using computers to store information.

M: record business

F: People have been using computers to record business.

M: communicate with others

F: People have been using computers to communicate with others.

M: send bills to customers

F: People have been using computers to send bills to customers

M: keep records of inventories

F: People have been using computers to keep records of inventories.

M: keep track of expenses

F: People have been using computers to keep track of expenses.

M: turn their appliances on and off

F: People have been using computers to turn their appliances on and off.

下面一組練習(xí)是由老師念一個(gè)現(xiàn)在時(shí)態(tài)問(wèn)句, 比方: Do people use computers for entertainment? 學(xué)生就用現(xiàn)在完成進(jìn)行時(shí)態(tài)把句子改成 Have people been using computers for entertainment? 這組練習(xí)的內(nèi)容還是說(shuō)到電腦的用途.作這 組練習(xí)一方面可以練習(xí)不同時(shí)態(tài), 一方面也可以復(fù)習(xí)剛才學(xué)過(guò)的詞匯.請(qǐng)你在 學(xué)生作練習(xí)的時(shí)候也一起作.

M: Do people use computers for entertainment?

F: Have people been using computers for entertainment?

M: Do people use computers for communication?

F: Have people been using computers for communication?

M: Do people use computers for inventories?

F: Have people been using computers for inventories?

M: Do people use computers for record-keeping?

F: Have people been using computers for record-keeping?

M: Do people use computers to store information?

F: Have people been using computers to store information?

M: Do people use computers to compute complex problems?

F: Have people been using computers to compute complex problems?

M: Do people use computers to send bills to customers?

F: Have people been using computers to send bills to customers?

M: Do people use computers to keep track of expenses?

F: Have people been using computers to keep track of expenses?

M: Do people use computers to turn their appliances on and off?

F: Have people been using computers to turn their appliances on and off?

三.聽(tīng)短文回答問(wèn)題

今天我們要聽(tīng)一篇關(guān)于電腦工業(yè)發(fā)展迅速的文章.這篇文章里有不少現(xiàn)在完成 進(jìn)行時(shí)態(tài)句子, 也有許多我們剛才練習(xí)過(guò)的詞匯.

請(qǐng)你注意聽(tīng), 等一會(huì)兒老師要根據(jù)文章問(wèn)你幾個(gè)問(wèn)題.

The home computers industry has been growing rapidly in the United States for the last ten years. Computers used to be large, expensive machines that were very difficult to use.

But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses.

Computers have been designed to store information and compute complex problems.

Some have voices that speak with the operators. Stores use computers to keep records of their inventories and to send bills to their customers.

Offices use computers to type letters, record business and communicate with other offices.

People have been using computers in their homes to keep track of expenses and turn appliances on and off.

One important new use for computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers to play computer games at home. They have become very popular indeed.

剛才那篇文章你都聽(tīng)懂了嗎? 如果沒(méi)有, 不要著急, 等一會(huì)兒你還有機(jī)會(huì)聽(tīng). 現(xiàn) 在老師先把今天測(cè)驗(yàn)的問(wèn)題念一遍給你聽(tīng).

第一個(gè)問(wèn)題是:

M: Why have computers been getting more popular?

第二個(gè)問(wèn)題是:

M: How can computers be used?

第三個(gè)問(wèn)題是:

M: Who has been playing computer games?

現(xiàn)在老師再用慢速度把整篇文章念一遍.

The home computers industry has been growing rapidly in the United States for the last ten years. Computers used to be large, expensive machines that were very difficult to use.

But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses.

Computers have been designed to store information and compute complex problems.

Some have voices that speak with the operators. Stores use computers to keep records of their inventories and to send bills to their customers.

Offices use computers to type letters, record business and communicate with other offices.

People have been using computers in their homes to keep track of expenses and turn appliances on and off.

One important new use for computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers to play computer games at home. They have become very popular indeed.

現(xiàn)在請(qǐng)你回答下面三個(gè)問(wèn)題. 每回答一個(gè)問(wèn)題就請(qǐng)你聽(tīng)老師念正確答案.

第一個(gè)問(wèn)題是:

M: Why have computers been getting more popular?

F: It is because they are smaller, cheaper and easier to use.

第二個(gè)問(wèn)題是:

M: How can computers be used?

F: They can be used to do any of the ten things mentioned in the reading.

第三個(gè)問(wèn)題是:

M: Who has been playing computer games?

F: People of all ages have been playing computer games.