将等腰Rt△ABC绕点A逆时针旋转15°得到△AB′C′，若AC＝1，则图中阴影部分面积为（　　　）

漫画《你会吗》启示我们，在生活中(       )

下列关于电流、电压和电阻的说法中正确的是（  ）

下列关于戊戌变法的说法不正确的是（    ）

用方框中所给单词的适当形式填空，使对话通顺、正确。每词仅用一次（每空一词）。

A: Annie, I'm a little nervous. I have to finish ____ a book and give a report next Monday.

B: That doesn't sound too bad.

A: But I'm a very slow reader.

B: Just read quickly to get the main ideas at first. Don't read word ____ word. Read word groups.

A: But I don't understand many of the words. I have to use a dictionary.

B: Try to guess a word's ____ by reading the sentences before and after it. You ____ understand more than you think.

A: That sounds difficult!

B: Well, be patient. It takes time. You can become better by reading something you enjoy every day. The more you read, the ____ you'll be.