It is eight o'clock. The children go to school by car every day, but today, they are going to school on foot.
It is ten o'clock. Mrs Sawyer usually stays at home in the morning, but this morning, she is going to the shops.
It is four o’clock. In the afternoon, Mrs Sawyer usually drinks tea in the living-room, but this afternoon, she is drinking tea in the garden.
It is six o’clock. In the evening, the children usually do their homework, but this evening, they are not doing their homework. At the moment, they are playing in the garden.
It is nine o’clock, Mr. Sawyer usually reads his newspaper at night, but he is not reading his newspaper tonight. At the moment, he is reading an interesting book.
进行时只用于表示动作或偶尔发生的事件(We are eating, it is raining等等)。有些动词(如 like, want, know等)不是动作动词，因此不能用进行时态，如不能说 I am knowing或We are liking，而只能说 I know或 We like。
一般现在时表达某个习惯性动作，通常与时间频度副词连用，如 usually, always, often, sometimes, never等;现在进行时表示此时此刻正在进行的动作，一般与 now, at the moment, today, this afternoon, this evening, tonight等连用。
We usually watch television at night. But we are listening to the stereo tonight.
我们通常晚上看电视。但是今晚我们正在听立体声节目。
词汇学习 Word study
1.play
(1)v. 玩，做游戏：
The children are playing in the garden.
孩子们正在花园里玩耍。
(2)v. 参加(体育活动、比赛等)：
Let's play chess!
咱们来下棋吧!
He likes playing basketball.
他喜欢打篮球。
(3)n. 玩耍;娱乐：
All work and no play makes Jack a dull boy.
只工作而不娱乐会使人变呆的。
2.cook
(1)v. 烹调;煮，烧：
She cooked a lovely meal for her husband.
她为丈夫做了一顿美餐。
The beef is not cooked enough.
牛肉煮得不够熟。
(2)n. 厨子，炊事员：
Tom works as a cook in a local restaurant.
汤姆在当地的一家餐馆当厨子。
My dad is really a good cook.
我爸爸烹调手艺特棒。
练习答案 Key to written exercises
Lesson 58
A
1 She usually drinks tea in the morning, but this morning, she is drinking coffee.
2 They usually play in the garden in the afternoon, but this afternoon, they are playing in the park.
3 He usually washes the dishes at night, but tonight he is washing clothes.