下列各种现象中，属于光的折射的是（ ）
A．斜插在水中的筷子“变弯”了
B．灯光下的人影
C．平静湖面中树的倒影
D．黑板反光
A、筷子的光线从水射入空气，发生偏折，看上去好像在水面处折断了，是光的折射现象，故本选项符合题意；
B、影子是光沿直线传播形成，故本选项不符合题意．
C、水面上岸边树的倒影是平面镜成像，属于光的反射现象，故本选项不符合题意；
D、黑板反光是因为黑板的某一部分太光滑，光在这里发生镜面反射，故本选项不符合题意．
故选A．
| 任务型读写。阅读下面短文，根据所读内容在表格中的空白处填入恰当的单词。 注意：每个空格只填一个单词。 | ||||||||||||
| You may admire both the romantic love story and the mysterious city of Rome in the movie Roman Holiday. If you are planning to visit Rome, here are some cultural dos and don'ts you should know. Coffee Etiquette: Italian breakfast consists of pastry and a cup of Cappuccino or shot of espresso. Cappuccino is a morning drink and is not drunk after noon by real Italians. A post-dinner espresso, however, is a common practice. Dinner rules: Guests are expected to arrive for dinner reservations at least fifteen minutes late. In many restaurants, the printed memus are only for tourists. Regular customers know how to ask for the daily specials, which typically feature the freshest ingredients. Bread is rarely served together with butter or olive oil. Drinking water. Rome has plenty of public water fountains, and real Romans (and their dogs) always drink directly from them. Many people also refill their water bottles from these fountains. Mind the traffic: Unless there is a traffic light, or you are in a crosswalk, don't expect cars to stop for you. Though crosswalks go first, in a car-crazy city, still you'd better keep cautious and walk cautiously. Money: Always have some Euros with you. Most major hotels, restaurants and shops take credit cards, but many smaller operations will either be unwilling to accept them for smaller purchase or not accept them at all. ATMs are available throughout the city and at the airports. About soccer: Most Italian men are passionate about their soccer. Arm yourself with some knowledge of Italy's soccer scene, and you will find ready conversation partners almost everywhere. The Romans: The people here love to share their thoughts, opinions and emotions. They are creative, passionate, playful, occasionally rude or vain but always entertaining, and almost always good-humored. | ||||||||||||
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