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一、选择题（本大题有16个小题，共42分.1～10小题各3分，11～16小题各2分）1．﹣7的相反数是（）

A．7 B．﹣7 C．D．﹣

2．下列图形中，∠2＞∠1的是（）

A．B．C．D．

3．若两个非零的有理数a、b，满足：|a|=a，|b|=﹣b，a+b＜0，则在数轴上表示数a、b的点正确的是（）

A．B．C．

D．

4．在6×6方格中，将图1中的图形N平移后位置如图2所示，则图形N的平移方法中，正确的是（）

A．向下移动1格B．向上移动1格C．向上移动2格D．向下移动2格

5．下列运算中，正确的是（）

A．4m﹣m=3 B．﹣（m﹣n）=m+n C．（m2）3=m6D．m2÷m2=m

6．如图，在⊙O中，弦AB∥CD，若∠ABC=40°，则∠BOD=（）

A．80°B．50°C．40°D．20°

7．关于x，y的方程组的解是，其中y的值被盖住了，不过仍能求出p，则p的值是（）

A．﹣ B．C．﹣ D．

8．如图，己知△ABC，任取一点O，连AO，BO，CO，并取它们的中点D，E，F，得△DEF，则下列说法正确的个数是（）

①△ABC与△DEF是位似图形；②△ABC与△DEF是相似图形；

③△ABC与△DEF的周长比为1：2；④△ABC与△DEF的面积比为4：1．

A．1 B．2 C．3 D．4

9．设边长为3的正方形的对角线长为a．下列关于a的四种说法：

①a是无理数；

②a可以用数轴上的一个点来表示；

③3＜a＜4；

④a是18的算术平方根．

其中，所有正确说法的序号是（）

A．①④B．②③C．①②④D．①③④

10．某校九年级（1）班全体学生2015年初中毕业体育考试的成绩统计如下表：

根据上表中的信息判断，下列结论中错误的是（）

A．该班一共有40名同学

B．该班学生这次考试成绩的众数是45分

C．该班学生这次考试成绩的中位数是45分

D．该班学生这次考试成绩的平均数是45分

11．如图，是四张形状不同的纸片，用剪刀沿一条直线将它们分别剪开（只允许剪一次），不能够得到两个等腰三角形纸片的是（）

A．B．C．

D．

12．某农场开挖一条长480米的渠道，开工后每天比原计划多挖20米，结果提前4天完成任务，若设原计划每天挖x米，那么求x时所列方程正确的是（）

A．﹣=4 B．﹣=20

C．﹣=4 D．﹣=4

13．在平面直角坐标系中，点A、B、C、D是坐标轴上的点且点C坐标是（0，﹣1），AB=5，点（a，b）在如图所示的阴影部分内部（不包括边界），已知OA=OD=4，则a 的取值范围是（）

A．B．C．D．

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Live at Leeds Festival． B. Midnight Sun Film Festival． C. Fuji Rock Festival． D. The White Nights Festival． 2.Where will you enjoy a 24-hour movie activity？______ A. In Leeds，United Kingdom． B. In Sodankyla，Finland． C. In the Naeba Ski Resort，Japan． D. In St．Petersburg，Russia． 3.What do Live at Leeds Festival and Fuji Rock Festival have in common？______ A. They are of the same music style． B. They focus on new artists． C. They require entrance wristbands． D. They have age limits． B On my first day of high school，going into math class，I was pointed and laughed at by two of my classmates．I initially thought my fly was open，or that something was stuck in my teeth．But as I took my seat，I heard one student whisper，"Why is a black boy taking Honors？" So，my fly wasn't open．An honors level class had simply been taken by a student whose skin was brown．Many people think my clothes should be big enough for me to live in，or expect me to listen to only "black music．" In seventh grade，a group of my classmates fixed their cold stares on my clothes．They called out to me，"Go get your gangsta clothes．" In one of my Spanish classes，the teacher asked me，"Do you like rap music or rock music more？" I replied，"Rock．" The look of shock on my classmates' faces made me uncomfortable． Now I still take all Honors courses．I still wear clothes that fit me．My music library covers from rock to pop to techno，and almost everything in between．When it comes to choosing my friends，I am still colorblind．I continue to do my best to work in school in order to reach my goals；and yet，when I look in the mirror，I still see skin of that same brown． I believe in being myself．I believe that I myself should decide who I am and what actions I take in life．In high school，popularity often depends on your willingness to follow trends．And I've been told that it doesn't get much easier going into adulthood．But the only other option is to sacrifice my personality for the satisfaction and approval of others．This can be appealing，but I'm not going to do that． 4.Why did his classmates laugh at him？______ A. His fly was open． B. Something was stuck in his teeth． C. He went into the wrong classroom． D. They had prejudice against him． 5.What are black people usually believed to do？______ A. Listen to rap music． B. Wear small clothes． C. Take Honors courses． D. Attend Spanish classes． 6.What does the underlined word "colorblind" probably mean？______ A. Making friends of the same skin color． B. Having no idea what friends to make． C. Treating people equally and fairly． D. Feeling hurt and offended inside． 7.What can be a suitable title for the text？______ A. Following Popular Trends B. Being Content with Myself C. Having Faith in Skin Color D. Changing My Personality C Coca-Cola，which reportedly produced more than 3 million tons of plastic packaging in 2017，announced Thursday it wants to "help fix the world's plastic waste problem one community （社区）at a time．" The soda giant is doing so by providing ＄5.4 million for recycling programs in cities like Atlanta，Boston，Denver and Houston．In these cities，partners，like The Green Blue Institute and The Recycling Partnership，which receive the money，will work together to improve recycling rates． "We focus on areas where we have the ability to make the biggest influence on communities through the funding and expert skills of Coca-Cola employees，" Carlos Pagoagoa，Coca-Cola's group director of community partnerships，said in a statement．"In each city，local partners will work together to identify barriers to recycling on a local level and test a range of solutions，" he added．"We hope the learnings from these ‘model markets' can offer solutions to other cities facing similar challenges．" As part of the effort，The Recycling Partnership and the city of Atlanta，where the cola company's headquarters are based，will send street teams out to open recycling carts and leave citizens cards informing them what they can and can't recycle，and let them know how their efforts work． "Two of the most urgent problems with recycling in the U．S．today are lack of access，followed by pollution in recycling，" Keefe Harrison，CEO of The Recycling Partnership，said in a statement．"We know from the success of Atlanta in 2017 that the citizens want to recycle，and that communicating with them in the street works．" Last year，Coca-Cola announced its task to collect and reuse a bottle or can for each one it sells，and increase the amount of its products out of recycled materials to 50% by 2030．The brand also aims to make all its packaging fully recyclable by 2025． 8.What does Coca-Cola company intend to do in the program？______ A. Produce less packaging． B. Help deal with plastic waste． C. Pick up waste in communities． D. Build a plant to recycle plastic waste． 9.What's Paragraph 2 mainly about？______ A. How Coca-Cola conducts its program． B. What organizations participate in the program． C. How Coca-Cola chooses cities for the program． D. What the local people do in Coca-Cola's program． 10.What do street teams do to help？______ A. Sort out various waste in the city． B. Look into the cause of pollution．

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