Computer mouse 　　The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive. Think of all the things you can do with a mouse like selecting text for copying and pasting, drawing, and even scrolling on the page with the newer mice with the wheel. Most of us use the computer mouse daily without stopping to think how it works until it gets dirty and we have to learn how to clean it. We learn to point at thing before we learn to speak, so the mouse is a very natural pointing device. Other computer pointing devices include light pens, graphics tablets and touch screen, but the mouse still our workhorse. 　　The computer mouse was invented in 1964 by Douglas Englehart of Stanford University. As computer screens became popular and arrow keys were used to more around a body of text, it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful. The introduction of the mouse, with the Apple Lisa computer in 1983, really started the computer public on the road to relying on the mouse for routine computer tasks. 　　How does the mouse work? We have to start at the bottom, so think upside down for now. It all starts with mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad, it presses against and turns two shafts. The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices called light emitting diodes (LED) mounted on either side. One LED sends a light beam to the LED on the other side. As the wheels spin and a hole rotates by, the light beam gets through to the LED on the other side. But a moment later the light beam is blocked until the next hole is in place. The LED detects a changing pattern of light, converts the pattern into an electronic signal, and sends the signal to the computer through wires in a cable that goes out the mouse body. This cable is the tail that helps give the mouse its name. The computer interprets the signal to tell it where to position the cursor on the computer screen. 　　So far we have only discussed the basic computer mouse that most of you probably have or have used. One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up the dirt. Eventually you have to clean your mouse. The newer optical mice avoid this problem by having no moving parts. 　　1. Most computer users want to know how the computer mouse works. 　　A. right B. wrong C. not mentioned 　　2. According to the author, general computer users need not know how the computer mouse was invented. 　　A. right B. wrong C. not mentioned 　　3. The computer mouse derives its name from the cable that goes out its body, which looks like the tail of a mouse. 　　A. right B. wrong C. not mentioned 　　4. The key components of a computer mouse are the two LEDs. 　　A. right B. wrong C. not mentioned 　　5. When an ordinary computer mouse gets dirty, it has to be replaced with a new one. 　　A. right B. wrong C. not mentioned 　　6. The most durable computer mice on sale are the IBM ones. 　　A. right B. wrong C. not mentioned 　　7. The optical mouse is superior to the basic one in that the former has no moving parts. 　　A. right B. wrong C. not mentioned　答案與解析： 　　1.分析文章標(biāo)題： Computer mouse (鼠標(biāo)) 　　2.直接解題： 　　1. Most computer users(使用者) want to (想要...)know how the computer mouse (電腦鼠標(biāo))works(工作) . 　　A. right B. wrong C. not mentioned 　　1. B. 細(xì)節(jié)題。 利用問題句中涉及到修飾詞的結(jié)構(gòu)most computer users作為答案線索， 在文章中查找答案相關(guān)句： 　　(第一段) The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive. Think of all the things you can do with a mouse like selecting text for copying and pasting, drawing, and even scrolling on the page with the newer mice with the wheel. Most of us use(使用) the computer mouse (與問題句中的most computer user呼應(yīng))daily(每天， 每天的， 日報(bào)) without(不，沒有) stopping to(停下來去...) think how it works(工作， 起作用) until(直到) it gets(變得) dirty (臟的，卑鄙的)and we have to(不得不) learn (學(xué)習(xí))how to clean(使...干凈， 打掃) it. We learn to point at thing before we learn to speak, so the mouse is a very natural pointing device. Other computer pointing devices include light pens, graphics tablets and touch screen, but the mouse still our workhorse. 　　文章第一段第三句說, 大多數(shù)電腦使用者天天用電腦卻沒有想去了解鼠標(biāo)的工作原理。由此可見問題句的內(nèi)容與該句內(nèi)容不一致，因此問題句沒有提供正確信息。 　　考點(diǎn)：stop to do sth./停下來去... 　　比較：stop doing /停止... 　　提示： 　　問題句表示數(shù)量或范圍的修飾詞， 如：all, any, whole, most, some 等可能是判斷答案的關(guān)鍵詞。 　　2. According to (根據(jù)/依據(jù))the author(作者), general(普通的， 綜合的， 全面的) computer users(使用者) need(需要) not know (知道)how(怎樣) the computer mouse was invented(被發(fā)明). 　　A. right B. wrong C. not mentioned 　　2.C. 細(xì)節(jié)題。利用問題句中涉及到修飾詞的結(jié)構(gòu)general computer users作為答案線索， 在文章中查找答案相關(guān)句： 　　(第一段)The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive. Think of all the things you can do with a mouse like selecting text for copying and pasting, drawing, and even scrolling on the page with the newer mice with the wheel.(第一題答案相關(guān)句)Most of us use the computer mouse daily without stopping to think how it works until it gets dirty and we have to learn how to clean it. We (指代鼠標(biāo)用戶/與general computer users呼應(yīng))learn to point at (指向)things(東西) before(在...之前) we learn to (學(xué)會)speak(說話), so the mouse(鼠標(biāo)) is a very natural(自然的) pointing(指方向的) device(設(shè)備). Other computer pointing devices include(包括) light pens(光筆), graphics tablets and touch screen, but(但是) the mouse still our workhorse(重負(fù)荷工作部件). 　　The computer mouse was invented (被發(fā)明)in 1964 by Douglas Englehart of Stanford University(斯坦福大學(xué)). As(隨著) computer screens became popular(受歡迎的) and arrow keys were used to (被用于...)move(移動) around a body of text, it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful. The introduction of the mouse, with the Apple Lisa computer in 1983, really started the computer public on the road to relying on the mouse for routine computer tasks.　　(第3段)How does the mouse work(工作)? We have to start at the bottom, so think upside down for now. It all starts with mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad, it presses against and turns two shafts. The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices called light emitting diodes (LED) mounted on either side. One LED sends a light beam to the LED on the other side. As the wheels spin and a hole rotates by, the light beam gets through to the LED on the other side. But a moment later the light beam is blocked until the next hole is in place. The LED detects a changing pattern of light, converts the pattern into an electronic signal, and sends the signal to the computer through wires in a cable that goes out the mouse body. This cable is the tail that helps give the mouse its name. The computer interprets the signal to tell it where to position the cursor on the computer screen. 　　So far we have only discussed the basic computer mouse that most of you probably have or have used. One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up the dirt. Eventually you have to clean your mouse. The newer optical mice avoid this problem by having no moving parts. 　　文章中沒有出現(xiàn)與問題句的內(nèi)容相呼應(yīng)的信息， 因此判斷問題句的內(nèi)容在文章中沒有被提到。 　　3. The computer mouse derives its name(名字， 名稱) from(從...中獲得...) the cable(電纜) that goes out its body(身體), which looks like (看起來象)the tail(尾巴) of a mouse(老鼠). 　　A. right B. wrong C. not mentioned 　　3.A. 細(xì)節(jié)題。利用問題句中的細(xì)節(jié)信息詞cable和the tail of a mouse 作為答案線索， 在文章中查找答案相關(guān)句： 　　The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive. Think of all the things you can do with a mouse like selecting text for copying and pasting, drawing, and even scrolling on the page with the newer mice with the wheel. Most of us use the computer mouse daily without stopping to think how it works until it gets dirty and we have to learn how to clean it. We learn to point at thing before we learn to speak, so the mouse is a very natural pointing device. Other computer pointing devices include light pens, graphics tablets and touch screen, but the mouse still our workhorse. 　　The computer mouse was invented in 1964 by Douglas Englehart of Stanford University. As computer screens became popular and arrow keys were used to more around a body of text, it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful. The introduction of the mouse, with the Apple Lisa computer in 1983, really started the computer public on the road to relying on the mouse for routine computer tasks. 　　(第3段)How does the mouse work? We have to start at the bottom, so think upside down for now. It all starts with mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad, it presses against and turns two shafts. The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices called light emitting diodes (LED) mounted on either side. One LED sends a light beam to the LED on the other side. As the wheels spin and a hole rotates by, the light beam gets through to the LED on the other side. But a moment later the light beam is blocked until the next hole is in place. The LED(發(fā)光二極管) detects(察覺， 探測) a changing(變換的) pattern(模式， 圖案) of light(光), converts the pattern into(把...轉(zhuǎn)變成) an electronic(電子的) signal(信號), and sends(發(fā)送， 寄，派遣) the signal to the computer(計(jì)算機(jī)) through(通過) wires(電線) in a cable (電纜)that goes out the mouse body. This cable is the tail (尾巴) that helps(幫助) give(給予) the mouse its name(名字). The computer interprets the signal to tell it where to position the cursor on the computer screen.