一、一般现在时
定义：一般现在时表示经常性的或习惯性的动作或存在的状态，还表示说话者的某种能力，以及自然现象。
构成：动词原形 + 主语（第三人称单数需加-s或-es）。
例句：
- I do my homework in the evening. 我在晚上做作业。
- She reads books every day. 她每天读书。
- The sun rises in the east. 太阳从东方升起。
常见时间状语：often, always, sometimes, usually, every day, in the morning, on Mondays, every week, etc.
练习：
- He ________ (play) basketball every Saturday.
- They ________ (go) to school at seven o\'clock.
- My mother ________ (cook) dinner in the evening.
二、现在进行时
定义：现在进行时表示正在进行或发生的动作。
构成：am/is/are + doing。
例句：
- I\'m doing my homework now. 我现在正在做作业。
- They are cleaning the classroom. 他们正在打扫教室。
- She is listening to music. 她正在听音乐。
常见时间状语：now, these days, at the moment, look, listen, etc.
练习：
- Look! He ________ (write) a letter.
- Listen! They ________ (sing) a song.
- What ________ (happen) to you?
中考考点扫描
一、动词时态的用法
1. 一般现在时：表示经常性的或习惯性的动作或存在的状态，以及说话者的某种能力。
2. 现在进行时：表示正在进行或发生的动作。
二、人称代词的用法
1. 主格：用于句子的主语位置。
- I, you, he, she, it, we, they
2. 宾格：用于句子的宾语位置。
- me, you, him, her, it, us, them
三、可数名词与不可数名词
1. 可数名词：有单数和复数形式。
- 单数形式：book, apple, table
- 复数形式：books, apples, tables
2. 不可数名词：没有单复数形式。
- 例子：water, milk, sugar, advice
中考范例解析
1. 安徽省中考试题
题目：---Hurry up! We\'re all waiting for you.
---I ________ for an important phone call. Go without me.
A. wait B. was waiting C. am waiting D. waited
解析：答案：C。表示现在正在进行的动作，用现在进行时。
2. 长春市中考试题
题目：Could you help _______ with _______ English, please?
A. I, my B. me, me C. me, my D. my, I
解析：答案：C。第一个空作宾语，应用人称代词的宾格me, 第二个空作定语，应用形容词性物主代词my。
3. 长春市中考试题
题目：Dr. White can _______ French very well.
A. speak B. talk C. say D. tell
解析：答案：A。说哪种语言常用动词speak。
4. 黄冈中考试题
题目：English is spoken by ______ people.
A. a lot B. much many C. a large number of D. a great deal of
解析：答案：C。只有a large number of能用来修饰复数可数名词people。
练习题
一般现在时
1. She ________ (read) books every day.
2. They ________ (play) football on weekends.
3. My father ________ (work) in a hospital.
现在进行时
1. Look! She ________ (write) a letter.
2. Listen! They ________ (sing) a song.
3. What ________ (happen) to you?
人称代词
1. Give me the book, ________ (you).
2. I need your help, ________ (me).
3. He gave her a present, ________ (she).
可数名词与不可数名词
1. There are many ________ (apple) on the tree.
2. He needs some ________ (milk) for his breakfast.
3. A large number of ________ (student) are studying in the library.
通过以上详细的讲解和练习，相信你对一般现在时和现在进行时有了更深入的理解。希望这些内容对你有所帮助！