Oneday，Itookmydaughtertothepar-优题课

Hi Alice，

My name's Zhao Ming and I'd like to be your pen friend.I'm 16 years old.I have two little brothers.They're very （1）　　（love）.I often help my parents look （2）　　 them in my spare time.My mother （3）　　（work） in a toy shop.She loves （4）　　（she） job.And my father is （5）　　 engineer.He is busy every day，（6）　　 he tries to spend more time with us.

I'm in the school basketball team.We usually play （7）　　（match） on Saturday mornings.Last week we played against another school.They ran （8）　　（fast） than us.However.we had better teamwork.Finally，we（9）　　（win）!How happy we were!This is the （10）　　（eight）time we beat them.

Could you tell me something about you？Please write.

Best

Zhao Ming

Dear Mary，

I've already gotten your e﹣mail.I'm very glad that you are interested in the cultural relics （文物） of China.Let me tell you something about it.

If you want to learn about the cultural relics of our country，you may consider visiting museums or（1）　　（read）books.Now there is a new way（2）　　（learn）about the cultural relics.It is to watch a CCTV show（3）　　（name）National Treasure.Do you want to know more about the new way？Just read on.

National Treasure is a popular show（4）　　Sunday.It has ten episodes（集）.It shows twenty﹣seven treasures from（5）　　（ninth）museums across China.

After it first（6）　　（show）on December 3，2017，it soon became popular.Yu Lei，the（7）　　（direct）of the show，said that it made national treasures come "alive".

（8）　　 it's a show about old relics，it looks very new and modern.There is a large LED screen on the stage （舞台）.The screen will show every detail（细节）of the treasures.

The show tells the stories and history behind the treasures.It also invites famous actors to act out（9）　　（this） stories on the stage.The actors even use modern words and sentences in their performances.

A lot of people love the show and they are the fans of National Treasure.One of the fans said，"National Treasure really brings museums and cultural relics（10）　　people in a modern and interesting way."

So much for National Treasure.Let's talk about it face to face next time.I'm looking forward to seeing you soon.

Yours，

He Ting

Zu Chongzhi was one of the greatest mathematicians（数学家） in ancient China.He was born during the Northern and Southern（1）　　（ dynasty）.From a young age，Zu was taught natural science，astronomy（天文学），math and so on.The little boy was （2）　　（ interest） in all of these subjects，especially in （3）　　.

Zu was best known for his calculation（计算） of pi （π）.According to the record，he did all the work using nothing but wooden sticks. （4）　 took him lots of time to work out the value —（5）　　 3.1415926 and 3.1415927.No one at that time was able to do better than Zu.And now the achievement is still praised by people around the world.In order to remember Zu，some mathematicians suggest （6）　　（call） pi"Zu Lv".

Zu was successful not only in math，but also in astronomy.He worked out that a year should be 365.24281481 days long and created the Daming Calendar. （7）　　，government officials at that time did not agree with Zu.The great mathematician （8）　　saw his calendar put into use.Almost ten years after his （9）　　（die），the new calendar was finally accepted.

Zu was an inventor，too.He once made a vehicle（车辆）（10）　　 carried a pointer （指针）.No matter how the vehicle turned，the pointer always pointed to the south.

Bicycle riding is good exercise.It helps people become （1）f 　　.Bicycle riding can make the riders' hearts and lungs strong.It is also good for the environment because bicycles do not cause （2）　　（污染）.

Bicycles share the road with cars and trucks.Drivers do not always notice bicycles.So bicycle riders must （3）p 　　 attention to the traffic around them and know traffic signals.They must know and obey the safety （4）r 　　 .They must wear helmets to protect their heads.If they ride at night，they should have lights on the bicycle or wear light﹣colored clothes.In case of an accident，bicycle riders should know how to give first aid.If an injury is serious，they must call 120 for help.In a word，the best way to be safe is to be （5）　　（小心的）.

When we say "we threw something out，" what do we really mean？After all，our waste doesn't just disappear even if it is taken a（1）　　.So why not recycle it？

Have you ever used newspapers when you clean the windows？If you haven't，please try!I didn't believe it when I（2）　　（听到）and read that.I thought that they would certainly leave ink（墨汁）or bits of paper behind.Actually，I was so wrong.I have had clearer windows than before s（3）　　 I tried it

When we mention cleaning products，we have to talk about paper towels（手巾）I used （4）　to　think more paper towels meant a cleaner home.I loved the idea of cleaning with the fresh white paper and then throwing（5）　　out.But now I know that I have to s（6）　 using paper towels，because paper towels are a huge waste problem.Cutting out paper towels would save（7）　　（树），water，air and our money.

Recently.my family and I have started collecting all old （8）　　（衣服），and then cut them into pieces.Getting one piece to do some cleaning has become our n（9）　　habit.I thought that it would be such（10）　　uneasy thing to break a 30﹣year old habit.Whatever，it really is the most meaningful thing that I have done during a long time.