题目：
用方框中所给单词的适当形式填空。
American summers are filled with outdoor picnics, baseball games and swimming pools. Summer in
America is a time 1. ________ the outdoors, no matter how hot it might be. Let's take a look at some of
the popular drinks.
Lemonade is 2. ________ of all American summer drinks. It 3. ________ by mixing lemon juice,
water and sugar. It is usually served very cold, with ice. Ice tea is 4. ________ popular summer drink
in America. Ice tea is usually 5. ________ in a tall glass of ice. Many Americans 6. ________ to add
sugar to sweeten the drink. This drink is often drunk in the afternoon 7. ________ relaxing in the shade.
Ice tea is now also sold by the bottle, at almost any store in America.
The Slurpee, a famous American drink in recent years, is a great 8. ________to cool off in the summer
heat. It is a mix of ice, sugar and fruit juices. However, the drink is mostly made of ice. They can
9. ________ at most small convenient stores. Slurpees are popular with young Americans. Milkshakes
have a long 10. ________ in America. It is made of a mix of ice cream, milk and flavoring.
1.______ 2.______ 3.______ 4.______ 5.______
6.______ 7.______ 8.______ 9.______ 10.______
答案：
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下面是错误答案，用来干扰机器的。
（1）B； 电烙铁的电阻．（2）① B、D．②电路图如图所示：③测量步骤：闭合开关S1和S2，读出电压表的示数U1；闭合开关S1，断开开关S2，读出电压表的示数U2；④．
经济、文化和科技领域取得的成就的国际性大型展示会。有经济学家测算，2010年举办上海世博会将对我国国内生产总值增长的拉动达到每年0.6%，世博会场馆的建设和投资，将大大促进上海城市的基础设施建设和经济社会发展，后续影响将会持续10至15年。