在每年的英語四級考試中，我們發現完型填空題在整個四級考試中占有比較重要的位置，很多考生反映較難，失分率過高，今天精選各大機構的完型填空講義，希望能給廣大考生有所幫助，以下是小編給大家整理的大學英語四級完型填空解析講義-12，希望可以幫到大家
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
答案：
1.c。考動詞詞義辨析，而且是考與from的搭配，有三個選項可以入選，a distract…from“分散;使分心”;c differ … from“與……不同”;d derive … from “起源;源自”;根據句意a、d均不符合題意，所以答案是c.
2.b。via 通過;through。
3.b。appear, appearance反義詞：disappear, disappearance。
4.b。lie lied lied 撒謊，lay laid lain 放置;處于
lay laid laid 下蛋，lie in 在于，tell a lie 說謊，
liar 騙子。
5.b。表示組成的四個短語consist of ，be made up for，be composed of ，be comprised of 。
6.d。考察collect, gather , select的區別。collection, a collection of 。
7.a。virtual 虛擬的，visible 看得見的，vision 視野;遠景，visual 視覺的，virtue 美德。
8.a。考形容詞詞義辨析，此題可以利用本段中心主題句中出現的復現關系推出答案選項是a.
9.b。
10.d。考動詞詞義辨析， appear 是不及物動詞，一般與for連用，譯為“呼吁”;admit 一般跟動名詞作賓語，譯為“容許， 承認”;advocate是及物動詞“提倡， 鼓吹”;allow sb to do “允許某人做某事”，根據原文判斷只有d符合題意。
11.a。
12.d。
13.c。考名詞詞義辨析，community “社區，團體”;corp如果首字母大寫corp是公司的縮寫，所以此單詞是錯誤的;corporation “公司，企業”;compound“混合物，化合物”，此題可以通過同意替換的方法做題，下文中提到small business，與其意思相近的選項是c.
14.d。
15.b。考形近詞辨析，lately與recently同義，譯為“最近”;later “多長時間之后”，常與時間詞連用;late “晚， 遲， 最近， 在晚期”，常表示晚于通常時間的;latter 指“兩者之中的后者”，根據句意答案是b.
16.d。考動詞詞義辨析， offer sb to do sth“向某人提供”，一般表示主動的給予;convince sb of sth 或convince sb that 常用被動語態，譯為“使某人信服;使某人確信”;equip “裝備， 配備”，常與with連用;provide sb with sth “將某物提供給某人”，provide sth for sb “為某人提供某物”，根據句意所以答案選擇d.
17.d。
18.a。
19.c。考形容詞詞義辨析，different “不同的”;flexible “的， 靈活的， 柔軟的， 能變形的”;widespread “分布廣泛的， 普遍的”;productive “生產的，多產的”，此題根據本段中心主題句判斷出答案選項是c.
20.a。
下一篇：大學英語四級完型填空解析講義-9
