现在进行时(Present continuous tense)
现在进行时的结构：am/is/are + v.ing
动词现在分词(v.ing)的构成规律：
1. 大多数动词加ing；
2. 以不发音e结尾的动词,去e再加ing；
3. 以ie结尾的动词,变ie为y,再加ing；
4. 以一个辅音字母结尾的重读闭音节动词,双写词尾再加ing.
现在进行时的标志词语：now, at present, at the moment, right now, these days, ...

1. work-working；2. make-making；3. lie-lying；4. run-running（答案不唯一，符合规则的动词示例均可）

1. 示例：work-working, play-playing
2. 示例：make-making, write-writing
3. 示例：lie-lying, die-dying
4. 示例：run-running, swim-swimming

一、根据首字母或汉语提示,写出所缺单词
1. We are (庆祝) New Year this week.
2. It's three o'clock in the afternoon.My mum is (打扫) my bedroom.
3. Look! What are they doing? They are (坐) on the chair and chatting with each other.
4. Be quick! Everyone is for you outside the classroom.
5. The music sounds nice. Now some students are to the music.

1. celebrating
2. cleaning
3. sitting
4. waiting
5. dancing

1. 根据汉语提示“庆祝”以及句子结构，可知此处应使用现在进行时态，表示正在进行的动作，故填写“celebrating”。
2. 根据汉语提示“打扫”以及句子结构，同样应使用现在进行时态，故填写“cleaning”。
3. 根据汉语提示“坐”以及句子中的“Look!”和“They are”，可以确定此处也是现在进行时态，故填写“sitting”。
4. 根据首字母“w”和句子结构，可以推断出此处应使用现在进行时态表示等待的动作，故填写“waiting”。
5. 根据首字母“d”和句子结构，结合“The music sounds nice.”，可以推断出学生们正在随着音乐跳舞，故填写“dancing”。

1. Where is your father? He is (visit) the USA at this moment.
2. Alice with her family (not live) in Nanjing now.
3. Are you (enjoy) yourself at the New Year's music show?
4. Why is the little boy (lie) on the ground?
5. — May I use your pen?
— Sorry, I (use) it. Can you wait a minute?

1. visiting 2. isn't living 3. enjoying 4. lying 5. am using

1. 由"at this moment"可知用现在进行时，visit的现在分词是visiting。
2. "with her family"是伴随状语，主语是Alice，now提示用现在进行时否定式，isn't living。
3. "Are you..."后接现在分词，enjoy的现在分词是enjoying。
4. "is the little boy..."后接现在分词，lie的现在分词是lying。
5. 由"Can you wait a minute"可知正在使用，用现在进行时，am using。

1. It's seven o'clock on Sunday morning. Mum .
2. Li Hai on the phone at the moment.
3. His brother in the garden.
4. His grandpa because he's ill.
5. Dad and mum taking grandpa to see the doctor after breakfast.

1. is cooking in the kitchen
2. is chatting with friends
3. is practicing doing morning exercises
4. is lying in bed
5. are thinking about

1. 由“正在”可知用现在进行时，结构为be+动词-ing。Mum是第三人称单数，be动词用is，“做饭”是cook，“在厨房”是in the kitchen，所以填is cooking in the kitchen。
2. “此刻正在”提示用现在进行时，Li Hai是第三人称单数，be动词用is，“和朋友聊天”是chat with friends，chat的现在分词是chatting，所以填is chatting with friends。
3. “正在练习”用现在进行时，His brother是第三人称单数，be动词用is，“练习做早操”是practice doing morning exercises，practice的现在分词是practicing，所以填is practicing doing morning exercises。
4. “正躺在床上”用现在进行时，His grandpa是第三人称单数，be动词用is，“躺在床上”是lie in bed，lie的现在分词是lying，所以填is lying in bed。
5. “正在考虑”用现在进行时，Dad and mum是复数，be动词用are，“考虑”是think about，think的现在分词是thinking，所以填are thinking about。

四、微写作
The Spring Festival is coming. Please describe what you and your family members are doing to welcome it. (At least 3-5 sentences, using present continuous tense)______

The Spring Festival is coming. My family and I are very busy preparing for it. My mother is cleaning the house to sweep away bad luck. My father is decorating the doors and windows with red paper-cuts. I am helping my grandmother make dumplings. We are all enjoying the festive atmosphere.