名师精讲大学英语四级完型填空解析讲义12

　　The term e-commerce refers to all commercial transactions conducted over the Internet， including transactions by consumers and business-to-business transactions. Conceptually， e-commerce does not 1 from well-known commercial offerings such as banking by phone， mail order catalogs， or sending a purchase order to supplier 2 fax. E-commerce follows the same model 3 in other business transactions; the difference 4 in the details.

　　To a consumer， the most visible form of e-commerce consists 5 online ordering. A customer begins with a catalog of possible items， 6 an item， arranges a form of payment， and 7 an order. Instead of a physical catalog， e-commerce arranges for catalogs to be 8 on the Internet. Instead of sending an order on paper or by telephone， e-commerce arranges for orders to be sent 9 a computer network. Finally， instead of sending a paper representation of payment such as a check， e-commerce 10 one to send payment information electronically.

　　In the decade 11 1993， e-commerce grew from an 12 novelty ( 新奇事物) to a mainstream business influence. In 1993， few 13 had a web page， and 14 a handful allowed one to order products or services online. Ten years 15 ， both large and small businesses had web pages， and most 16 users with the opportunity to place an order. 17 ， many banks added online access， 18 online banking and bill paying became 19 . More importantly， the value of goods and services 20 over the Internet grew dramatically after 1997.

　　1. A)distract B) descend C)differ D) derive

　　2. A) with B) via C) from D) off

　　3. A) appeared B) used C) resorted D) served

　　4. A) situates B) lies C) roots D) locates

　　5. A) on B) of C) for D) to

　　6. A) reflects B) detects C) protects D) selects

　　7. A) sends in B) puts out C) stands for D) carries away

　　8. A) visible B) responsible C) feasible D) sensible

　　9. A) beside B) over C) beyond D) up

　　10. A) appeals B) admits C) advocates D) allows

　　11. A) after B) behind C) until D) toward

　　12. A) optional B) invalid C) occasional D) insignificant

　　13. A) communities B) corps C) corporations D) compounds

　　14. A) largely B) slightly C) solely D) only

　　15. A) lately B) later C) late D) latter

　　16. A) offered B) convinced C) equipped D) provided

　　17. A) Instead B) Nevertheless C) However D) Besides

　　18. A) and B) or C) but D) though

　　19. A) different B) flexible C) widespread D) productive

　　20. A) acquired B) adapted C) practiced D) proceeded