This backpack belongs to me. 这背包是我的。 He seems rather angry with you. 看起来他很生你的气。 ②表示知道、信念、理解、推测、怀疑、希望等含义的动词
这类动词有know, remember, understand, see, think, believe, suppose, hope, doubt等。
I don't think he will come tomorrow. 我想他明天不会来。
I still remember the days when we studied together. 我还记得我们一起学习的那些日子。
提示： 有时这些动词的进行时态可表示心理状态的缓慢发展过程。
She's understanding you better now. 她越来越了解你了。
③表示要求、心愿等意义的动词 这类动词有want, wish, need, desire等。
Your clothes need washing. 你的衣服需要洗了。
How I wish I were a bird！ 我多希望我是一只鸟啊！
④表示继续或持续含义的动词 这类动词有continue, keep, last, go on等。
She still continues in poor health. 她仍然身体很差。
Every day after finishing his homework, he goes on to do some reading.
他每天做完作业后，都会继续看会儿书。
⑤表示感觉的动词 这类动词有see, hear, smell, taste, feel等。
The apples taste good. 这些苹果尝起来不错。This flower smells nice. 这花闻上去很香。
Your suggestion sounds reasonable. 你的建议听上去有道理。
注意： 如果这些动词表示一种有意识的行为，则可用进行时态。
She is tasting the apple. 她正在尝苹果。 The dog is smelling the footprints. 狗正在嗅脚印。 The bell is sounding for dinner. 晚饭铃响了。
4．现在进行时和一般现在时的比较
①暂时性动作和经常性动作
The computer is working perfectly. 计算机运转得很好。（暂时）
The computer works perfectly. 计算机运转很好。（一直如此）
②持续性动作和短暂性动作
The bus is stopping. 车停了下来。（渐渐地）The bus stops. 车停了。（迅速）
③暂时性动作和永久性动作
She is living in the country. 她现在住在农村。（暂时） She lives in the country. 她住在农村。（永久） ④有感情色彩和没有感情色彩
He is doing well at school. 他在学校表现很好。（赞扬） He does well at school. 他在学校表现很好。（一般事实）
B.过去进行时
1.过去进行时的构成 过去进行时是由“was / were +现在分词”构成的。
I was doing my homework at this time yesterday. 昨天的这个时候我正在做作业。
Were you expecting him yesterday? 你昨天一直在等他吗？
They were not talking when I came in. 我进来的时候他们没在说话。
2. 过去进行时的用法
①过去进行时的基本用法
a.表示在过去某一时刻正在发生的动作或该动作与过去的另一动作同时发生
I was having supper at 7:00 yesterday evening. 昨天晚上7点我正在吃晚饭。
She was playing the piano while I was reading the newspaper.
她弹钢琴时我在看报。
提示： 当句子意思很清楚时，我们也可以把两个动词都换成一般过去时。
We listened closely while the teacher read the text.老师读课文时，我们都仔细地听着。
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