某班 “ 数学兴趣小组 ” 对函数 的图像和性质进行了研究．探究过程如下，请补全完整．

（ 1 ）自变量 x 的取值范围是全体实数， x 与 y 的几组对应值列表如下：

x	…	-3	-2	-1	0	1	2	3	4	5	…
y	…	4	m	2	1	0	1	2	3	4	…

其中， _________ ．

（ 2 ）根据上表的数据，在如图所示的平面直角坐标系中描点，并画出了函数图像的一部分，请画出该函数图像的另一部分．

（ 3 ）观察函数图像，写出一条函数性质 ____________________________ ．

（ 4 ）进一步探究函数图像发现：

① 方程 的解是 ________________ ；

② 方程 的解是 __________________ ；

③ 关于 x 的方程 有两个实数根，则 k 的取值范围是 ____________ ．

用方框中所给词的正确形式填空 , 使短文完整、正确 .

weak, change, a, can, name, because, so, fight, into, interest

Pupils in China all like the traditional Chinese book 1 ． Journey to the West . In the past, it wasn’t popular with western children, but most of them 2 ． their minds already.

The Monkey King is not just 3 ． normal monkey. In fact, he sometimes does not even look like a monkey! This is 4 ． he can make 72 changes to his shape and size, turning himself 5 ． different animals and objects. But unless he can hide his tail, he 6 ． turn himself into a man. 7 ． bad men, the Monkey King uses a magic stick. Sometimes he can make the stick 8 ． small that he can keep it in his ear. At other times, he is able to make it big and long.

The Monkey King has excited Chinese children for many years. Western children have also become 9 ． in reading this story because the clever Monkey King keeps fighting to help the 10 ． just like a super hero.

下列关于文学、文化常识的表述不正确的一项是（ ）
A. 人们常用“唐诗、宋词、元曲、明清小说”来概括唐、宋、元、明、清这几个时期突出的文学形式。
B. 《五柳先生传》《出师表》《岳阳楼记》《马说》《与朱元 思书》《送东阳马生序》中的“传”“表”“记”“说”“书”“序”都 是古代的文体。
C. 古人常用“阴”“阳”表示方位，山南水北称为“阳”，山北水南称为“阴”。
D. 古代的别称都很固定，如“桑梓”指家乡， “社稷”指国家，“伉俪” 指朋友，“布衣”指百姓，等等。

一组数据 2 ， 0 ， 2 ， 1 ， 6 的众数为 ________ ．

2017年2月5日，《人民日报》报道，15年前，宁波鄞州区塘头村徐兰芳的丈夫患病生命垂危，村民们帮他凑齐了医药费。为了完成两年前去世的老伴的遗愿，这个春节，徐兰芳推着一车八宝粥，揣着账本，在村里挨家挨户还钱。这告诉我们（　　）

①只要讲诚信就一定能获得良好的声誉

②对人诚信会获得人们的信任

③诚信是个人得以立足于社会的保证

④夫妻之间必须诚信，不能有任何隐瞒

A．①② B．②③ C．③④ D．①④

2020年以来，世界在新冠疫情的狂风暴雨中蹒跚前行，但地区冲突问题却并未因疫情而淡化。阿富汗与塔利班和谈一波三折，利比亚冲突余波未平，巴以地区又起战火。对此理解正确的是

A ． 当今世界并不太平，仍存在很多矛盾和冲突

B ． 和平与发展已不再是当今世界的两大主题

C ． 人类正在面临新一轮世界大战的严重威胁

D ． 地区冲突是当今世界动荡不安的唯一原因

No matter what ________ ( 困难 ) we meet, we should try to face them instead of running away from them.

身心健康对每个人来说都非常重要。如图中做法不利于健康的是（　　）
A. B.
C. D.

下列词语中加点字的注音完全正确的一组是
A. 别扭 bié 畸形jī 蓦然mò 豢养juàn
B. 着落zuó 黝黑yōu 斡旋wò 稽首qǐ
C. 粗犷guǎng 挑逗tiǎo 炽热chì 诓骗kuāng
D. 惩戒 chěng 颤抖shàn 归省xǐng 停滞zhì

总有一种力量让我们热泪盈眶，总有一种感动让我们深刻铭记。在不平凡的 2020年，“时代楷模”“感动中国人物”“最美人物”这些榜样人物让我们倍感温暖。向这些榜样人物学习…（     ）

①启发我们思考人生道路和人生理想

②能够促进我们不断自我成长与完善

③能够从中汲取力量让社会更加美好

④将会让我们立即改掉一切不良习惯

A ． ①②③ B ． ①②④ C ． ①③④ D ． ②③④

 

名著阅读。(任选一题作答)
(1)下面是两部名著的插图,请任选一幅,简述与画面内容相关的故事情节。

①《水浒传》 ②《骆驼祥子》
(2)《西游记》中,孙悟空曾经三次离开取经团队,请说一下孙悟空第二次离开团队的情节。

下列词语中，每对加点字的读音都相同的一项是（ ）
A. 咀嚼/味同嚼蜡 栅栏/姗姗来迟 B. 取缔/根深蒂固 逞能/惩罚
C. 央求/怏怏不乐 伫立/相形见绌 D. 狡黠/闻名遐迩 慰藉/解元

2019年11月1日，中共中央宣传部举行新闻发布会, 邀请六部门负责人介绍党的（   ）有关情况。党的（  ）是一次具有开创性、里程碑意义的重要会议，是党的历史上首次用一次中央全会专门研究国家制度和国家治理问题。（    ）

A.十九次全国代表大会

B.十三届全国人大常委会

C.十九届四中全会

D.十三届全国委员会

兰州白粉桃肉质细腻、蜜汁甘甜，享誉省内外。下图为桃花的结构模式图，据图回答下列问题：

（1）诗句“人间四月芳菲尽，山寺桃花始盛开”体现出影响桃树开花的非生物因素有_____。
（2）[2]花药里的花粉通过不同的途径传送到雌蕊柱头上的过程，叫做_____。
（3）当花粉落到[5]上并受到[5]分泌的黏液的刺激，就会萌发出_____，最后其末端破裂，释放出精子，与卵细胞结合成为受精卵。
（4）我们吃的甘甜的桃肉是由[7]_____发育来的，桃子里面的种子是由[8]胚珠发育来的。
（5）种子主要由_____和种皮等组成。

读“气温曲线与降水量柱状图”，判断哪一种是表示黑龙江省气候的（　　）

如图，抛物线与轴交于点和，与轴交于点．下列结论：①；②；③；④，其中正确的结论个数为（    ）

A．1个                       B．2个                       C．3个                       D．4个

As online learning becomes more common and more and more resources are converted to digital form, some people have suggested that public libraries should be shut down and, in their places ， everyone should be given an iPad with an e-reader subscription.

Supporters of this idea state that it will save local cities and towns money because libraries are expensive to maintain. They also believe it will encourage more people to read because they won't have to travel to a library to get a book; they can simply click on what they want to read and read it from wherever they are.

However, it would be a serious mistake to replace libraries with tablets. First, digital books and resources are associated with less learning and more problems than print resources. A study done on tablet vs book reading found people read 20-30% slower on tablets, retain 20% less information, and understand 10% less of what they read compared to people who read the same information in print.

Second, it is incredibly narrow minded to assume that the only service libraries offer is book lending. Libraries have a multitude of benefits, and many are only available if the library has a physical location. Some of these benefits include acting as a quiet study space, giving people a way to converse with their neighbors, holding classes on a variety of topics, providing jobs, answering patron questions, and keeping the community connected. A survey conducted in 2015 found that nearly two-thirds of American adults feel that closing their local library would have a major impact on their community. People see libraries as a way to connect with others and get their questions answered, benefits tablets can’t offer nearly as well or as easily.

While replacing libraries with tablets may seem like a simple solution, it would encourage people to spend even more time looking at digital screens, despite the various issues surrounding them. It would also end access to many of the benefits of libraries that people have come to rely on. In many areas, libraries are such an important part of the community network that they could never be replaced by a simple object.

1 ． What can we learn from Paragraph 1and 2?

A ． Public libraries have disappeared. B ． Public libraries are too expensive.

C ． People can learn on line. D ． People can lean without teacher.

2 ． According to the passage, the author probably agrees that ________.

A ． it’s inefficient for readers to read on tablets

B ． the only service libraries offer is book lending

C ． public libraries should be replaced with digital devices

D ． digital books and resources encourage people to spend more time reading

3 ． The purpose of the passage is mainly to________.

A ． persuade people to use libraries

B ． emphasize the benefits of libraries

C ． encourage communities to build more libraries

D ． compare digital books and resources with real books

4 ． Which of the following shows the development of ideas in this passage?

I: Introduction  CP: Central point  P: Point  Sp: Sub-point ( 次要点 )   C: Conclusion

A ． B ．

C ． D ．

人们经常食用的牛、羊、猪等肉类及白菜、土豆等蔬菜，消化吸收后，其中的成分大多被转化为人体自身的一部分，其根本原因是

A ．组成生物体细胞的化学元素在无机自然界中都能找到

B ．在不同生物的细胞内，组成它们的化学元素的种类大体相同

C ．组成生物体细胞的基本元素是碳

D ．不同生物的细胞内，组成它们的化学元素的含量大体相同

我校学生开展了题为“悦纳自我”的体验式活动，通过“发现珍宝”和“优点轰炸”等环节来激励内心的积极自我评价。这个活动

A.能够帮助学生消除自卑的心理          B.能够彻底解决学生的心理问题

C.有利于学生正确认识和评价自己        D.是通过他人的评价来认识自己

如图是元素周期表的部分信息。

完成下列填空：

（1）H⁺核外电子数为_______；

（2）写出一条第三周期元素原子的核外电子排布规律_____________；

（3）第 7 号元素与第 12 号元素的原子形成化合物的化学式为_______________；

（4）X、Y、Z、W 元素表示 4 种物质，它们的微观示意图如图：

物质 X 和 Y 在高温和催化剂条件下反应生成 Z 和 W 两种物质，反应的化学方程式为________。