We use teeth to eat and we need teeth to talk. But do you really know them? Let’s meet the “cool tools” in your mouth and learn how to protect them.
Unlike your brain or heart, your teeth are not ready to work when you are born. The first tooth usually comes out when a baby is 6 to 12 months old. Then more and more teeth begin to grow. Most kids have their first set of teeth at 3 years old. We call them baby teeth, and there are 20 of them. Baby teeth cannot stay with us forever. When you are 6 years old, baby teeth will start to fall one by one. They have to make room for your second set of teeth –adult teeth. You have to suffer the pain of growing adult teeth 12-13years old. An adult usually has 28-32teeth. Why pain?
A tooth with a hole is a decayed tooth(蛀牙).If you don’t clean your teeth regularly ,you’ll get one .Then germs(细菌)will build up and eat away your teeth._____________.
Tooth fairy(精灵)
In America, there is a lovely story for children. It is said that there are fairies for everyone’s baby teeth .Each time a child’s baby tooth falls out, he can put it under his pillow before sleeping .Then when he wakes up in the morning, he always finds money or a small present from the tooth fairy instead of his tooth in its place.
根据材料内容选择最佳答案，并将其标号填入题前括号内。
| A．three years old | B．two years old |
| C．one year old | D．one month old |
| A．more | B．less | C．better | D．many |
| A．going to the doctor often |
| B．giving up candy |
| C．looking for germs |
| D．cleaning your teeth often |
| A．Therefore, you need not to clean your teeth every day. |
| B．However, it is unnecessary to clean your teeth after eating candy. |
| C．So, try to clean your teeth after you eat candy or just eat less. |
| D．You just need to clean your teeth after eating too much candy. |
| A．Children usually have 28 baby teeth. |
| B．The tooth fairy is just a story to cheer up children |
| C．We would never have decayed teeth |
| D．The adult teeth stop growing when a child is 10 years old. |
Canada shares the longest international border（边界）in the world with the USA，which is8，891 km long．The longest part of the border is shared with the US state，Alaska，and it is about 2，475 km long．Here is more information about Canada．
Geography |
★the largest waterfalls，Niagara Falls ★the second biggest country in the world，after Russia ★the highest mountain，the Mount Logan with a height of 5，959 m ★the longest river，the McKenzie River in the northwest，4，241 km long ★a large country with a small population |
Attractions for kids |
★going boating in the national parks，enjoying skiing，snow﹣boarding and other winter fun activities in the mountains ★outdoor activities： riding，climbing and ice﹣skating in Toronto，Vancouver and so on ★interesting museums and wonderful city parks |
（1）How long is the longest border that Canada shares with Alaska？
A．8，891 km．
B．2，475 km．
C．4，241 km．
D．5，959 m．
（2）The largest country in the world is ．
A． China
B． Canada
C． the USA
D． Russia
（3）Which of the following statements is true？
A． The height of the Mount Logan is 5，959 kilometers．
B． The McKenzie River lies in the northeast of Canada．
C． Canada is a large country which has a small population．
D． Kids can't go ice﹣skating in Vancouver．
People in different countries speak different languages． But is there a language that can be understood by everyone in the world？ Emojis might be the first truly universal（通用的） language．
Emojis are a kind of special language． Pictures are used to put meaning across． A group called the Unicode Consortium is in charge of choosing official（官方的）emojis It has added new emojis every year since 2014． These new emojis do not come out of nowhere． They come from what people think about， like and care about．
Emojis can be used to represent （代表） different groups of people． In 2015， emoji faces with different skin tones（肤色） were added． In 2016， different jobs were added，such as doctor， police officer and painter along with female versions of these jobs． This year， emojis of disabled people were added， including emojis of blind people and people in wheel chairs．
But there is also more to emojis． They can also refer to pop culture and new cultural trends．New emojis in 2019 have included several animals， such as sloths（树懒） and flamingos（火烈鸟）． These animals are not very common， but are known to many people． For example， sloths have become popular thanks to the 2016 film Zootopia（《疯狂动物城》）． Many fashion designers have included flamingos in their designs in recent years． This animal makes people feel like they' re on a tropical（热带） vacation．
It seems that emojis are a mirror of the world we live in．It will be interesting to see how they change and grow in the years to come．
根据短文内容，完成下列任务．
（1）Emojis are a special language using the to put meaning across．（仅填1个词）
（2）Where do new emojis come from？（回答不超过9个词）
（3）When did emojis begin to show different jobs？（回答不超过2个词）
（4）What kind of animals have been included in2019？（回答不超过6个词）
（5）将画线句子翻译成汉语．
Earlier this year， China achieved a new milestone（里程碑）in space exploration． On Jan 3，Chang'e 4 became the first space probe（探测器）in history to successfully land on the far side（dark side） of the moon． After a 26﹣day journey， it touched softly down on a crater． The whole process of landing lasted 12 minutes， which opened a new page in history of mankind's space exploration．
The far side of the moon is the side that we can not see． We don't know much about it． This landing is of great importance． The far side of the moon is an ideal（理想的） place forscientific research． It may have unique minerals（矿物质）and other resources． Scientists can make clearer observations of deep space from there．
Chang'e 4 has sent back photos of the far side of the moon． It is also being used to carry out experiments． The data（数据） collected from these experiments could be used to help us build a base on the moon in the future． The success of the Chang'e 4 mission（任务） is a major achievement for China's space program．
China launched its lunar （月球的）exploration program in 2004， naming it Chang'e．Chinese scientists set three goals﹣﹣"orbiting（环绕运行）， landing and sample（样本）returning"． Chang'e 4 has realized the second goal． The third will be achieved during the Chang'e 5 mission， which is set to take place before the end of this year．
Following the success of the Chang'e missions， Chinese scientists are looking even farther into our solar system（太阳系）． China's first Mars mission is expected to be carried out by 2020．
（1）Chang'e 4 is the first space probe in the world to land ．
A． in deep space
B． on the moon
C． on the near side of the moon
D． on the far side of the moon
（2）What's the most important about the landing place？
A． It's far from the earth
B． It has many resources
C． It's ideal for scientific research
D． It's dark and unknown
（3）The underlined word"observations " in paragraph 2 means ．
A．学习
B．观察
C．描述
D．庆祝
（4）Which of the following is the second goal of China's lunar exploration program？
A． Landing on the moon．
B． Bringing some samples back to the earth．
C． Building a base on the moon．
D． Tyaveling around the moon．
（5）What can be the best title of the passage？
A． The Space Probe．
B． Exploring the Moon．
C． The Three Goals．
D． Exploring the Mars．
Once upon a time， a wealthy old man lived alone in a big house． He was growing weaker day by day and was unable to take care of himself， so he decided to hire（雇佣） a nurse to help with housework and take care of him．
One day， the old man interviewed two nurses﹣﹣Anthony and Peter．Anthony happened to be a handsome young man， while Peter looked quite ordinary （普通的）． The old man asked Anthony to make tea for him． After Anthony left， the old man turned to Peter and said，"Anthony has given me a very bad account（描述） of you． He said you are rude（粗鲁的）and untrustworthy（不可信赖的）． Is this correct？"
Peter thought for a minute and said， "If Anthony has a bad opinion of me， there must be something wrong with me． I should take some time to change these things．"
The old man was very impressed by Peter's character．Meanwhile， Anthony returned with a cup of tea for the old man． The old man sent Peter to make breakfast for him． He then turned to Anthony and told him， "Peter spoke very poorly of you while you were gone． What do you think about this？"After hearing this， Anthony became angry and started cursing （咒骂）．
In the end， the old man hired Peter． Although Peter looked quite ordinary， he had impressive inner（内在的） beauty．
（1）What did the old man want a nurse to do？
A． Live with him．
B． Help with housework and look after his wife．
C． Work as a doctor．
D． Help with housework and look after him．
（2）What did Anthony look like？
A． Handsome．
B． Ordinary．
C． Old．
D． Ugly．
（3）The old man told Peter that Anthony ．
A． had had some bad words of him
B． had praised him
C． did not trust him
D． considered him to be not important
（4）How did Peter react （反应） when he heard the old man's words？
A． He was angry．
B． He took it seriously．
C． He didn't believe him．
D． He blamed（责备） Anthony．
（5）What can we learn from the passage？
A． Ordinary people are more trustworthy．
B． Handsome men must be good men．
C． Inner beauty is more important than appearance．
D． Others' opinions are always correct．
I' m sure you all know how important recycling is．Recycling is when you take old things and turn them into new things． It sounds like magic． But it's actually very scientific．
Materials |
The first thing you have to do is to collect items that can be recycled．Only certain materials can be recycled． These include things made out of paper， metal， glass and plastic． |
Daily things |
Can you think of everyday items made of these materials？ Soda cans are a good example． They are made out of metal． Magazines and newspapers are made out of paper． So are cereal boxes． Some bottles of juice are made out of glass． Bags and yogurt containers are made out of plastic． There are many things that can be recycled． |
Loop |
These things are usually stamped with the recycling loop． It has 3 arrows that go in a triangular（三角形的） circle． This shows that cycle（循环）continues． Items are thrown away but continue their lives as something else． |
Process |
Let's go back to the process of recycling．①The items are put in a recycling bin． ②A truck carries the items to a recycling plant．③The materials are separated and squashed（被压扁成） into square cubes．④Companies buy and turn them into new products． |
（1）What is"recycling"according to the passage？
A． It's a magic performance．
B． It's a way of burning old things．
C． It's a way to make old things useful．
D． It's a scientific research．
（2）Which material is not mentioned in the passage？
A． Rubber．
B． Metal．
C． Glass．
D． Plastic．
（3）You can put your old things into a recycling bin except ．
A． soda cans
B． magazines
C． cereal boxes
D． all bottles
（4）The"3 arrows" shows that the items ．
A． have some valuable stamps
B． are in a triangle circle
C． are recycled and reused
D． are thrown away
（5）The passage is mainly about ．
A． recyclable materials
B． recyclable daily things
C． the recycling process
D． recycling in a scientific way
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