阅读下面文字，完成题目。
【材料一】
北斗卫星导航系统是我国着眼于国家安全和经济社会发展需要，自主建设、独立运行的卫星导航系统，是继美国全球定位系统（GPS）、俄罗斯格洛纳斯卫星导航系统（GLONASS）、欧洲伽利略卫星导航系统（GALILEO）之后第四个成熟的卫星导航系统。
北斗系统实施“三步走”发展战略：
第一步：1994年，启动北斗一号系统工程建设；2000年，发射2颗地球静止轨道卫星，建成北斗一号系统，为中国用户提供定位、授时①、广域差分②和短报文③通信服务；2003年，发射第三颗地球静止轨道卫星，进一步增强系统性能。
第二步：2004年，启动北斗二号系统工程建设；2012年年底，完成14颗卫星发射组网，为亚太地区用户提供定位、测速、授时、广域差分和短报文通信服务。
第三步：2009年，启动北斗全球系统建设;2018年发射18颗卫星，面向“一带一路”沿线及周边国家提供基本服务；计划2020年前后，完成35颗卫星发射组网，为全球用户提供服务。
【材料二】
在北斗三号系统开通全球服务前，北斗二号系统亚太区域服务应用产品就已进入70多个国家和地区。从缅甸的土地规划、河运监管，老挝的精细农业、病虫害监测，到文莱的都市现代化建设、智慧旅游，中国北斗系统已大显身手。
这些年，北斗的国际化步伐明显加快。
——2014年6月5日，中阿合作论坛第六届部长级会议提出北斗系统落地阿拉伯项目的倡议。
——2015年5月8日，中国与俄罗斯签署北斗和格洛纳斯系统兼容与互操作联合声明。
——2018年4月10日，中国北斗首个海外中心——中阿北斗/GNSS中心在位于突尼斯的阿拉伯信息通信技术组织总部举行揭牌仪式。
不断探索与东道国开展合作的模式，让北斗走得更稳更远。
（选自《北斗，拥抱全球》，新华社，2018.12）
【材料三】
目前，中国正在积极建设一张全国地基网，让中国用户可能获得前所未有的高精度导航服务。北斗地基增强系统2016年正式上线运行，具备在全国提供实时动态厘米级、事后处理毫米级和快速辅助定位能力，行业最重视的“首次定位时间”被缩短到了5秒。
北斗系统近年来在北京、上海、成都等城市大力推广，影响力日益提升。凭借精确定位与发短报文等独门绝技，北斗吸引了众多企业合力培育生态圈。比如凭借厘米级定位，送货的无人机可以准确降落在客户的阳台上。共享单车、小汽车、割草机器人等也开始应用。
据估计，2020年北斗三号系统全面建成后，中国卫星导航产业规模将超过4000亿元。随着一年来18颗北斗三号卫星顺利上天，北斗全球系统已现雏形。
中国卫星导航定位协会副会长张全德说，由于北斗系统有短报文能力，且抗遮挡能力强，在高楼林立的城市优势更明显。目前，北斗已经在铁路、测绘、授时、航运、航空等多个行业中应用。未来，北斗将形成庞大产业链。
（选自《凝聚中国航天智慧，北斗拉动经济发展》）
注：①授时：报时。
②广域差分：指由中心站、监测站、数据通讯网络和若干用户构成，处理、接收各种参数的差分方法。
③短报文：指北斗特有的，能直接进行卫星和用户之间双向信息传递的功能。
1.阅读以上三则材料，按照北斗卫星导航事业发展历程排序正确的一项是（）
①北斗全球系统已现雏形，预计2020年完成全球覆盖。
②北斗系统和格洛纳斯系统签署兼容与互操作合作声明。
③北斗一号系统开始为中国用户提供定位、授时、广域差分和短报文通信服务。
④北斗系统正式具备为全国提供实时动态厘米级、事后处理毫米级和快速辅助定位的能力。
A.③①②④ B.③②④①
C.②③④① D.④③①②
2.阅读以上材料三，正确的一项是（）
A.目前，中国已建设一张全国地基网，让中国用户可能获得前所未有的高精度导航服务。
B.北斗系统凭借米级定位，送货的无人机可以准确降落在客户的阳台上。
C.2020年北斗三号系统全面建成后，中国卫星导航产业规模将超过4000亿元。
D.18颗北斗三号卫星顺利上天，北斗系统形成庞大产业链。。
3.从材料三的文字和两幅图可知，北斗卫星导航系统主要具有 、 和 的特点。（每空不超过6个字）
4.你的邻居最近换了一部支持北斗导航系统的新型手机。鉴于他常年在“一带一路”沿线国家工作，根据以上材料提供的相关知识和你的积累，推测他购买这种新机型的原因。（写出两条理由）
1.B
2.C
3.答案：定位精准；应用广泛；前景广阔；定位速度快。
4.要点：①北斗系统兼容性、抗遮挡能力强（短报文功能），定位精准；②北斗系统社会应用多，方便一机多用；③随着北斗三号系统即将完成组网、为全球提供服务，持该手机出国，工作、生活会更方便。④北斗系统面向一带一路沿线及周边国家提供基本服务，已进入70多个国家和地区，手持该机在一带一路沿线国家工作，很方便。
书面表达
你校英语社团面向毕业生举行以“成为更好的自己”为主题的征文活动，请你结合自身经历，从"make friends", "have a healthy lifestyle", "develop good study habits", "take up a new hobby", "be independent” 五个方面任选一至两项，写一篇英语短文投稿。
要求:
1.词数80-100(开头已给出，不计入总词数);
2.文中不得出现真实姓名、校名等相关信息。
At the beginning of a new life, I'm going to make myself better. __________________________
As a student, what can you do to live an environment-friendly life?文中提到的除外。
① ②
How does the writer live a more environment-friendly life?文中任意两种即可。
① By___ _ ② By
从文中找出与划线句子(A)意思相近的句子。
阅读下面日记，完成小题。
Saturday 29 May 
Something has changed my mind today. I saw some pictures of the sea animals influenced by the rubbish in the sea. I can't get that out of my mind. So, I am going to try and live a more environment-friendly life. (A)Each day I will keep trying to change one thing that I do to protect the earth.
Monday 31 May 
Today I have decided to stop using plastic wrap (塑料保鲜膜) around the sandwiches that my mom makes for my lunch. Plastic wrap keeps my sandwich nice and fresh, and it's easy to throw away. However, I come up with a better idea. I can use a glass container (容器) instead of the plastic wrap. So, I can reuse it the next day for lunch. And I told this to my classmates too. I hope to see more reusable containers at school tomorrow.
Thursday 3 June 
Good news, when I took out my glass container, I noticed more of my classmates bring their home-made lunch in their own containers to school! Tonight, when I was shopping with my mom, I found a shop which doesn't provide any plastic bags! The idea of the shop is that you bring your
own cloth bags. In this way, there are no plastic or paper bags to throw away at home. When I left the store with the buys in my own cloth bags, I felt very proud of myself. (B)Tomorrow I'm taking the bus to school to save energy.
Friday 4June
What a wonderful bus ride to school today! Well, it's been a week since I decided to try to live a more environment-friendly life. The unbelievable part is that I can actually see a difference in the garbage(垃圾) in my home. The garbage bag is lighter and only one third filled. I feel excited that I have made a real difference. I'm going to keep saving the world one day at a time.
Why did the writer decide to live a more environment-friendly life?
根据句意和所给汉语完成句子。每空一词。（每小题1分，共5分）
1. Many young talented ____（音乐家）gave a wonderful performance on May 4th.
2. Hard-working spirit is stressed ____（在...之间）students in schools.
3. Here are our school uniforms. ____（他们的）are over there.
4. Lots of ____（贵重）objects are on show in the museum.
5. Many classic Chinese poems are ____（广泛）spread in the world.
用所给词的适当形式填空。每词限用一词。
catch, discuss, pull, down, climb, fight |
1. Many old houses around our school ____ last year and a large green area appeared.
2. With strong team spirit, the Chinese women’s volleyball players ____ for the national honor at the coming Olympics.
3. Tom ____ the volunteer program with his friends at this time yesterday.
4. The smart robot in the restaurant always ____ the customers’ eyes.
5. It’s reported that the temperature ____ quickly since this morning.
根据短文内容，从选项中选出能填入文中空白处的最佳选项，选项中有一项为多余选项。
Nothing sounds better than a swim on a hot summer day. However, many teens, including some who are good swimmers drown (溺水) each year. When someone is drowning, it's often silent and happens very quickly. 1.____. Here are some tips on how to prevent drowning when you go for a swim.
Never swim alone - even for a moment. You should go swimming with adults and make sure that they are able to keep you safe. 2. ____.
Enter the water carefully and feet first. Go in feet first so that you can know how deep the water is. Diving into unsafe water can lead to serious injuries.
3. ____. Take some time to stretch (拉伸) your body before you enter the water. Get your body prepared and safety will surely follow.
Learn lifesaving skills. 4. ____. CPR is one of the lifesaving skills that can help others who are near drowning.
Choose swimming areas carefully. 5. ____.Choose the areas with safety facilities (设施) and lifeguards
Remember: In case of emergency, it's always important to call for help first! All in all, keep swimming safety in mind when you are in and around the water.
A. Do body exercise
B. But it can be prevented
C.Warm up before swimming
D.It's important to have an adult nearby watch for danger
E. Don't go to the swimming areas that you don't know well
F. Many schools and training centers now offer classes to learn these skills
Where is the passage most likely from?
Grandpa has influenced Cindy in a positive way by_________.
