3. The word "springs" inParagraph 3 means

　　A a small stream of water flowing naturally from theearth.

　　B the season of the year，occurring between winter and summer.

　　C the act or an instance of jumping or leaping.

　　D a length of metal woundaround，which returns to its original shape after

　　being pushed.

　　4. According to Paragraph 4，what does Rome plan to do?

　　A To make the backpackmore comfortable for the wearer.

　　B To put the backpack on the market.

　　C To test the advantage of the backpack.

　　D To promote the backpack in anewspaper or on television.

　　5. What is implied in “if you do get oneeventually，just make sure to took both

　　ways before crossing the street！”?

　　A You will be too excited to watch the traffic.

　　B Enjoyingelectronic devices while walking may invite traffic accidents.

　　C It is notpossible for you to get such a backpack.

　　D It is wise of you to have such abackpack.

　　答案與題解：

　　1.C第一段告訴我們，因為背包可以裝許多東西，所以可以將雙手解放出來做其他事情：tofree your hands to do other things.

　　2.A第二段的第一句說，Lawrence C.Rome及其同事們發明的這種背包，當背著背包走路時，會有電能產生；該段最后一句告訴我們，背包的這種性能可減少背包的重量，因為不必攜帶備用電池。

　　3.D “springs"在此是彈簧的意思。spring是一個多義詞：泉水(A)、春天(B)、彈跳(C)。

　　4.B 第四段最后一句的意思是：Rome計劃將這種背包商業化，即推向市場。A、C、D在文中均未提到。D的意思是為背包做廣告。

　　5.B這個句子的字面意思是：如果你終于得到這樣的背包，過馬路時一定要兩面都看看。也就是說，不要因為同時玩著游戲，聽著音樂、看著電視，太專注以致不注意來往車輛了 。