2. 外语
  3. Smugglers try to bring illegal items into the United States every day. People who travel to foreign countries sometimes try to a

Smugglers try to bring illegal items into the United States every day. People who travel to foreign countries sometimes try to a

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问题     Smugglers try to bring illegal items into the United States every day. People who travel to foreign countries sometimes try to avoid paying duty taxes on items they (47)______ on vacation. Some people try to enter our country (48)______. Who prevents these things from happening? This is the job of U.S. Customs Inspectors
    Customs officials work at (49)______ points to America. This includes airports, seaports, and our borders with Mexico and Canada. They work to prevent people from illegally entering America from, (50)______ countries and inspect items brought into the United States. They also work to prevent illegal drugs and (51)______ from coming to America. Inspectors must be very (52)______. Many tricks are used to smuggle both people and items into our country.
    American citizens who travel to other Countries also (53)______ customs officials. When people travel, they may purchase items to bring home. This merchandise must be (54)______. Customs officials inspect items and receipts to assess a duty tax. A person may bring eight hundred dollar worth of merchandise into America without paying a duty tax. Some people try to hide expensive items to avoid paying this tax. Sometimes people try to bring banned items to the U.S. Our laws (55)______ certain types of plants, foods, animals, and products from coming into our country.  These laws are for our (56)______. Plants and foods may carry harmful insects or diseases. Customs officials check carefully to make sure proper taxes are paid and banned items do not come into our country.

                 Word Bank:
A. encounter                   I. entry
B. protection                  J. terrorists
C. dangerous                   K. honest
D. observant                   L. foreign
E. illegally                   M. prohibit
F. environment                 N. freely
G. purchase                    O. declared
H. protected
选项
答案G
解析 从句法结构看，该题应填入一个动词，其时态须是一般现在时，选项中符合这一要求的单词有A. encounter、G. purchase和M. prohibit。从句意看，该句表达那些到国外旅游的度假者有时竭力逃避对他们所携带的物品征收的关税，选项中能顺应这一句意的单，词只有“purchase”，表示“购买”。
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