Long ago， as people got older， there was something wrong with their teeth and it would be very painful．（1）
Later people learned that cleaning their teeth was important， but they didn't have toothpaste（牙膏） at that time．（2）
About 100 years ago someone finally created a kind of cream to clean teeth．Not long after that，the toothpaste tube （管子） was invented， so people could press the toothpaste right onto the toothbrush!（3） The army gave brushes and toothpaste to all the soldiers， and they learned to brush teeth twice a day． At that time toothpaste tubes were made of metal．（4）
Today there are plenty of toothpaste choices：lots of colors and tastes to choose from，and some kinds of toothpaste are made just for children．When you're choosing a kind of toothpaste，make sure it has fluoride（氟化物）．（5） When you brush your teeth，you don't need a lot of toothpaste： just press out a bit．
A． They used lemon juice， salt or other things to clean their teeth． B． Tooth brushing became popular during the World War I． C． Fluoride makes your teeth strong and healthy． D． Today they're made of soft plastic and are much easier to use! E． To avoid toothache， they had their teeth pulled out． |
How does garlic（大蒜） grow？Hu Mengmeng，13，had been thinking about this question for a while． Last term， Hu （1） （get） her answer in her schools rooftop garden．
Hu's school， Tangwai Junior High School in Shanghai， set up a small garden on its teaching building's rooftop in 2015． Each term， students （2） （plant） one kind of vegetable． While taking care of them． They also do scientific experiments（实验）（3） （learn） more about vegetables．
Chen Yan， a 14﹣year﹣old girl， （4） （study）in this school for one year．Last year，she started to plant garlic with her teacher's help．She wondered how sunshine affected the growth of garlic．She put three pots of garlic in different places to get different amounts of sunlight．Then， she watched their growth every day． Later， she found that the garlic which got the most sunlight （5） （grow） best．
The garden （6） （turn） into a fun place two years ago．The students planted different types of vegetables in shapes， such as hearts， or squares in the garden． The different kinds of vegetables made the garden more colorful．
And that is not the end． Next year， they （7） （build） a robot to help with planting，"Students will work with our robot club to build more robots to help with watering． " Mr． Zhou， the school's science teacher said．
rule none again note first directly another set out gave up |
One day， a student asked his teacher， "What is greed？" The teacher didn't answer his question（1） ， but asked the student to walk through the chocolate factory next to their school and pick out the biggest chocolate bar （条、块） he could find． But there was a （2） ： as he passed through the factory， he could not turn back．
The student went to the chocolate factory． As he walked， he saw a large chocolate bar． He liked it， but thought he might be able to find an even bigger one if he kept going． He kept walking and saw（3） chocolate bar． This one was a little bigger． But （4） ， he thought he could find an even bigger one if he kept going． As he neared the end of the factory， he saw fewer chocolate bars， and （5） of them were as large as the earlier ones． He started to regret his decision to keep going． Finally， he （6） ． He went back to his teacher empty﹣handed and explained what had happened．
The teacher told him． "You liked the （7） chocolate bar． but you kept looking for a bigger
one． And later， you realized that you had given up the best chocolate bar because you thought you could do better． That is called greed．"
B
A Spring Morning
This spring morning in bed I'm lying，
Not to awake till the birds are crying．
After one night of wind and showers，
How many are the fallen flowers!
（Translated by Xu Yuanchong）
This poem （1） （write） by Meng Haoran （689﹣740）， who lived during the Tang Dynasty． It might be one of the（2） （famous） poems about spring in China． People like to read it（3） they wake up on a spring morning．
Meng didn't directly say how much he loved spring． Instead， he wrote about the details（细节） of the season： the birds， wind， rain showers and fallen flowers． His descriptions（描述） of these things showed （4） （we） the joy he felt during springtime．
Meng chose to write about the sounds of spring． These sounds allow readers （5） （picture） spring using their own imagination．
A
There were many people on a bus． An old man（1） （look） here and there． He wanted to find（2） empty seat． Then he saw one and went to it． A small bag was on the seat． And a young man was beside it．
"Is this seat empty？" asked the old man．
"No， it's （3） an old woman． She went to buy some bananas，" said the young man．
"Well， let me sit here， please． I'll leave here when she（4） （come） back，" replied the old man．
After a few minutes， the bus started． "The old woman （5） （not come）， but her bag is here．Let me give her the bag．" Then the old man threw the bag out of the bus window．
The young man jumped up and shouted，"Don't throw! It's my bag!"
Most families love to go on holiday together． It is great fun to leave your common life behind and go somewhere different and exciting!
（1） Some people enjoy traveling around cities and visiting museums． Other people prefer outdoor holidays， where you can hike or go boating． Some people like cruises， where the huge ship is like a hotel．
Many families go on holiday in summer， when schools are closed． （2） In the past， most British families would take their holidays at a British seaside town． However， now many people choose to go abroad instead． One reason for this is to escape（躲藏） the possibility of rain at home! France， Spain and Greece are popular destinations（目的地）．
In the United States， summer holidays often involve a road trip． （3） It is common to drive hundreds of miles to get to your destination． If the beach is too far away， you could go to one of the national parks． Many people love to enjoy the natural beauty of places such as Yellowstone or the Grand Canyon．
（4） In winter， many people go skiing． The Alps are a very popular place to ski． The mountain scenery is truly wonderful! You can try downhill skiing， cross﹣country skiing or snowshoeing．
Not matter what kind of holiday you take， there are two things that nearly everyone does． The first is to sent postcards to friends and family at home， so they can see a photo of the place where you are． The second is to buy some sort of souvenir（纪念品） to that you can remember your trip﹣﹣maybe a T﹣shirt or an art piece． （5）
A． Beach holidays are very popular in Britain．
B． Few people like to take holidays in winter．
C． There are many different kinds of holidays．
D． Summer is not the only season for going on holiday．
E．This means packing the whole family into the car and setting out!
F． Then once you're home， it's time to start planning your next holiday!
G． However， some families never have chances to take holidays together．
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