2018年广东省广州市中考英语二模试卷

2018年广东省广州市中考英语二模试卷

本试卷共四大题,8页,满分110分。考试时间120分钟。注意事项:

1.答题前,考生务必在答题卡上用黑色字迹的钢笔或签字笔填写自己的考生号、姓名、考场试室号、座位号;再用2B铅笔把对应该两号码的标号涂黑。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案;不能答在试卷上.

3.非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内的相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案,改动的答案也不能超

出指定的区域.不按以上要求作答的答案无效.

4.考生必须保持答题卡的整洁.考试结束后,将本试卷和答题卡一并交回.

―、语法选择(共15小题;每小题1分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,从1~15各题所给的A、B、C和D项中选出最佳选项,并在答题卡上将该项涂黑。Many people take running 1 a way to keep fit. They like to run in hot weather and enjoy the feeling of being wet through with sweat while running. Cold weather during winter months, with low temperatures and freezing cold winds, may keep many people 2 running in the open air. However, a new study shows that the drop in temperature is 3 good reason to run. In fact, 4 in cold weather helps improve one’s performance. Many runners might find it 5 to run in winter than in hot weather. Lower temperatures reduce stress on the body. And the body needs less water 6 a cold day than in warm weather. John Brewer is a professor of applied sport science at St. Mary’s University in London. For this study, he and 7 researchers put a group of people into a room where summer and winter weather conditions are recreated. The test subjects 8 to run 10,000 meters under __9__conditions and their biological measurements were recorded and studied. From the study, every movement runners make 10 heat. One way in which people lose heat is 11 sweating(出汗). The body loses heat through droplets of sweat. it’s 12 harder to lose heat when the outside environment is warm. When running in cold conditions, the body requires less energy. The most important thing for people 13 run in cold conditions is to wear the right clothing. So, don’t let winter weather __14__you indoors. Simply get ready 15 the low temperatures and start running.

1. A.to B.as C.with D.at

2. A.with B.of C.for D.from

3. A.a B.an C.the D./ 4. A.run B.running C.to running D.ran

5. A.easy B.easiest C.easier D.easily

6. A.on B.at C.in D.for

7. A.another B.the others C.others D.other

8. A.are asked B.asks C.asked D.were asked

9. A.all B.neither C.both D.either

10. A.produce B.produces C.producing D.produced

11. A.in B.for C.by D.without

12. A.very B.much C.more D.too

13. A.which B.when C.who D.whose 14. A.keeping B.kept C.keeps D.keep

15. A.to B.for C.at D.of

二、完形填空(共10小题;每小题1.5分,满分15分)

阅读下面短文,掌握其大意,然后从16~25各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

It is true that people with better education are usually able to get better paying jobs. In other

words, they have 16 chances to choose a good job while people with 17 or no education don’t. It 18 that the purpose of education is to make people get jobs. But this isn’t

accepted by all people.

Some people may think that a person should spend the best years of his life to get education

only for a way of living. This is probably one of the earliest reasons of education. In fact, if

education is just a 19 of making a living, people don’t need to 20 so much time in school.

People can get education for a living in a 21 time. Subjects like history and geography need

not be taught to everyone. Even language and mathematics need not be taught in detailed(详细地). __22__ it is clear that education is much more than 23 a man to get a way of living.

Education is to improve a man. It can lead a better life. It is not only to teach him to speak,

read and write, but also to develop his creative thinking and other 24 . Educated people are

expected to be able to listen to good music, read good books, watch plays and most of all take a

__25__ interest in the world. 16. A. many B. best C. more D. little

17. A. well B. good C. little D. least

18. A. looks B. seems C. tells D. warns

19. A. kind B. road C. way D. question

20. A. take B. cost C. pay D. spend

21. A. short B. long C. hard D. simple

22. A. But B. So C. If D. when

23. A. learning B. teaching C. studying D. giving

24. A. cultures B. studies C. abilities D. ways

25. A. full B. careful C. great D. little

三、阅读(共25小题;满分45分)第一节阅读理解(共20小题;每小题2分,满分40分)阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项并在答题卡上将该项涂黑。

A

The Fifth Time I Went to the Principal’s Office

When I was in the seventh grade, I had problems behaving. My heart was in the right place,

but I couldn’t always follow the rules. I played many tricks on my schoolmates. Once, I even pulled

a girl’s hairon the school bus to get her attention. As a result, I was sent to the office of the

principal again and again. Although I hated going there, I did not hate the principal, Mr. Ratcliff.

Mr. Ratcliff was a kind, elderly man. When he spanked(打屁股)me for putting some ants

into a classmate’s pencil box, it didn’t hurt at all, but it did hurt my feelings. I thought so much of

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2018年广东省高考英语二模试卷

2018年广东省高考英语二模试卷

试卷第1页,总15页 2018年广东省高考英语二模试卷

第二部分 阅读理解(共两节)第一节(满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑.

1. OU supports open learning

The Opening University calls it “OU supports open learning”. It’s a method of distance

learning that’s accessible to everybody living in the European Union. There are also a

number of courses which can be followed online by those outside these countries.

◆ Teaching Support

An Opening University student works within a small group who are in communication with

their tutor by post, fax, telephone and e﹣mail. The tutors function is to mark the

student’s work, to comment upon it and offer any assistance required. Students in the

United Kingdom usually have an opportunity of attending day schools, which bring the

group together with the tutor at the specific phases of the course, for the purpose of group

2018年广东省广州市中考英语二模试卷

2018年广东省广州市中考英语二模试卷

2018年广东省广州市中考英语二模试卷

本试卷共四大题,8页,满分110分。考试时间120分钟。

注意事项:

1. 答题前,考生务必在答题卡上用黑色字迹的钢笔或签字笔填写自己的考生号、姓名、考场试室号、座位号;再用2B铅笔把对应该两号码的标号涂黑。

2. 选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案;不能答在试卷上.

3. 非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内的相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案,改动的答案也不能超出指定的区域.不按以上要求作答的答案无效.

4. 考生必须保持答题卡的整洁.考试结束后,将本试卷和答题卡一并交回.

―、语法选择(共15小题;每小题1分,满分15分)

阅读下面短文,按照句子结构的语法性和上下文连贯的要求,从1~15各题所给的A、B、 C和D项中选出最佳选项,并在答题卡上将该项涂黑。

Many people take running 1 a way to keep fit. They like to run in hot weather and enjoy

the feeling of being wet through with sweat while running. Cold weather during winter months,

with low temperatures and freezing cold winds, may keep many people 2 running in the open

air.

However, a new study shows that the drop in temperature is 3 good reason to run. In

fact, 4 in cold weather helps improve one’s performance. Many runners might find it 5

2018年广东省广州市中考英语二模试卷 2

2018年广东省广州市中考英语二模试卷 2

2018年广东省广州市中考英语二模试卷

本试卷共四大题,8页,满分110分。考试时间120分钟。注意事项:

1.答题前,考生务必在答题卡上用黑色字迹的钢笔或签字笔填写自己的考生号、姓名、考场试室号、座位号;再用2B铅笔把对应该两号码的标号涂黑。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案;不能答在试卷上.

3.非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内的相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案,改动的答案也不能超

出指定的区域.不按以上要求作答的答案无效.

4.考生必须保持答题卡的整洁.考试结束后,将本试卷和答题卡一并交回.

―、语法选择(共15小题;每小题1分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,从1~15各题所给的A、B、C和D项中选出最佳选项,并在答题卡上将该项涂黑。Many people take running 1 a way to keep fit. They like to run in hot weather and enjoy the feeling of being wet through with sweat while running. Cold weather during winter months, with low temperatures and freezing cold winds, may keep many people 2 running in the open air. However, a new study shows that the drop in temperature is 3 good reason to run. In fact, 4 in cold weather helps improve one’s performance. Many runners might find it 5 to run in winter than in hot weather. Lower temperatures reduce stress on the body. And the body needs less water 6 a cold day than in warm weather. John Brewer is a professor of applied sport science at St. Mary’s University in London. For this study, he and 7 researchers put a group of people into a room where summer and winter weather conditions are recreated. The test subjects 8 to run 10,000 meters under __9__conditions and their biological measurements were recorded and studied. From the study, every movement runners make 10 heat. One way in which people lose heat is 11 sweating(出汗). The body loses heat through droplets of sweat. it’s 12 harder to lose heat when the outside environment is warm. When running in cold conditions, the body requires less energy. The most important thing for people 13 run in cold conditions is to wear the right clothing. So, don’t let winter weather __14__you indoors. Simply get ready 15 the low temperatures and start running.

广东省广州市2018年中考一模英语试卷含答案

广东省广州市2018年中考一模英语试卷含答案

广州市2018年中考一模英语试卷

一、语法选择(共15小题;每小题1分,满分15分)

阅读下面两篇短文,按照句子结构的语法性和上下文连贯的要求,从1~15各题所的A、B、C和D项中选出最佳选项,并在答题卡上将该项涂黑。

Alan was a skinny old man who lived all alone. One day he got 1 bad cold and he called for a

doctor.

While the doctor 2 Alan, he asked, "Don't you have a friend 3 could come and take care of

you?”

“No, I've never had 4 friends,” the old man said.

“You've lived here all your life and never had a friend?” the doctor said 5 surprise.

“I'm 64 years old, but I've never met anyone 6 call a friend,” Alan said. “If it isn’t one thing

wrong with them, it’s another.”

“Our village head, Robin, will surely help you if he 7 you are sick,” the doctor said.

“It’s so 8 to listen to Robin,” Alan added. “You'd imagine there was nothing in this world 9

his crops and his wonderful, healthy pigs.”

2018年广东省广州市中考英语试卷-答案

2018年广东省广州市中考英语试卷-答案

1 / 8 广州市2018年初中毕业生学业考试 英语答案解析 一、语法选择 1.【答案】B 【解析】根据语境可知,此处指冼星海在他短暂的一生中写了将近300首歌曲。B项意为“差不多,几乎,将近”,符合语境。A项意为“靠近,在……附近”;C项意为“在附近”;D项意为“更近”,均与语境不符。故选B。 【考点】词义辨析。 2.【答案】C 【解析】此处应用he的形容词性的物主代词修饰名词mother。故选C。 【考点】人称代词的用法。 3.【答案】C 【解析】“play the+乐器名称”是固定用法,意为“吹/拉/弹奏某种乐器”。play the violin意为“拉小提琴”。故选C。 【考点】冠词的用法。 4.【答案】A 【解析】so/such..that..是固定句型,意为“如此……以至于……”;so后接形容词或者副词,such后接名词。故选A。 【考点】固定句型。 5.【答案】D 【解析】句意为:开始时,他的小提琴是如此的便宜和劣质以至于他无法把琴拉好。D项意为“能够”,符合语境。A项意为“需要”;B项意为“也许”;C项意为“应该”,均与语境不符。故选D。 【考点】情态动词辨析。 6.【答案】B 【解析】句意为:冼星海没有停止练习并在不久之后展露出了他的才能。stop doing sth.是固定用法,意为“停止正在做的事”。故选B。 【考点】非谓语动词。 7.【答案】D 【解析】分析句子结构可知,空格处引导定语从句,先行词是“the first Chinese students”,指人,在从句中作主语,应用who引导该从句。what不能引导定语从句;which引导的定语从句修饰指物的先行词;whom 2 / 8 在定语从句中作宾语。故选D。 【考点】定语从句。 8.【答案】C 【解析】根据本句中的“became”和全文内容可知,此处叙述的是过去发生的事情,所以应用一般过去时。故选C。 【考点】动词的时态。 9.【答案】A 【解析】句意为:毕业前,冼星海成为学校最优秀的学生,并因其才华而获得多个奖项。根据语境可知,“became”和“won”之间是顺承关系。故选A。 【考点】连词辨析。 10.【答案】D 【解析】句意为:之后,他去延安的一所大学教音乐。根据句意可知,此处应用动词不定式作目的状语。故选D。 【考点】非谓语动词。 11.【答案】B 【解析】句意为:虽然那时延安没有钢琴,洗还是在那儿写出了一些他最重要的音乐,包括他最著名的作品《黄河大合唱》。根据句意可知,此处应用although引导该让步状语从句,意为“尽管,虽然”。A项意为“如果”;C项意为“当……的时候”;D项意为“因为”,均与语境不符。故选B。 【考点】连词辨析。 12.【答案】D 【解析】music是不可数名词,可排除C项;根据本句中的“including The Yellow River, his most famous work”可知,他写出了一些音乐,此处应用some,意为“一些”。any 意为“一些(用于否定句中),任一”;little意为“很少,几乎没有”,均与语境不符。故选D 【考点】不定代词辨析。 13.【答案】B 【解析】根据本句中的“by the Chinese Communist Party”可知,该句的主语“Xian”和谓语动词send之间是被动关系,所以此处应用被动语态。故选B。 【考点】动词的语态。 14.【答案】A 【解析】根据空格后一句中的“Xian got sick and later died of a lung illness”可推知,洗星海在苏联的日子过得很艰难;根据本句中的“very”可知,此处不用比较级和最高级。故选A。 3 / 8 【考点】形容词的比较等级。 15.【答案】C 【解析】表示在具体的某一天应用介词on。故选C。 【考点】介词辨析。 二、完形填空 16.【答案】C 【解析】根据空格后一句中的“employ only one person, but more than twenty people applied for the job”可知,这份工作的竞争非常激烈。C项意为“竞争”,符合语境。A项意为“考试”;B项意为“工作”;D项意为“计划”,均与语境不符。故选C。 【考点】名词辨析。 17.【答案】A 【解析】根据本句中的“Jackie was one of the three people invited for the final interview”可知,Jackie很幸运地进入了最后一轮面试。A项意为“幸好,幸亏”,符合语境。B项意为“不幸地”;C项意为“有希望地”;D项意为“立即,马上”,均与语境不符。故选A。 【考点】副词辨析。 18.【答案】D 【解析】根据空格后一句“The interviewer asked just a few questions and it was all over in less than 10 minutes.”可知,面试官只问了几个问题,不到10分钟面试就结束了。由此可知,面试很简单。D项意为“简单的”,符合语境。A项意为“长时间的”;B项意为“严格的”;C项意为“有趣的”,均与语境不符。故选D。 【考点】形容词辨析。 19.【答案】B 【解析】根据常识可知,此处指面试官让他们回家等待答复。B项意为“等待”,符合语境。A项意为“拿起,拣起”;C项意为“处理”;D项意为“想起”,均与语境不符。故选B。 【考点】动词短语辨析。 20.【答案】A 【解析】根据空格后一句“She felt deeply disappointed.”可知,Jackie没有得到这份工作,也就是没有被提供工作。A项意为“提供,给予”,符合语境。B项意为“归还”;C项意为“拒绝”;D项意为“展示”,均与语境不符。故选A。 【考点】动词辨析。 21.【答案】D 【解析】根据本段第一句中的“Jackie received a message”可知,此处指她又收到了一条信息。D项意为“信 4 / 8 息”,符合语境。A项意为“信”:B项意为“电子邮件”;C项意为“电话”,均与语境不符。故选D。 【考点】名词辨析。 22.【答案】C 【解析】根据本句中的“to see if he was suitable for the job”和语境可知,Jackie 收到的第一条信息是一个测试,测试她是否适合这个工作。C项意为“测试”,符合语境。A项意为“指南”;B项意为“谈话”;D项意为“课,教训”,均与语境不符。故选C。 【考点】名词辨析。 23.【答案】A 【解析】根据本句中的“Al”和语境可知,他们三个人都收到了同样的短信。A项意为“同一的,相同的”,符合语境。B项意为“另外的,其余的”;C项意为“第二的,外加的”;D项意为“整个的”,均与语境不符。故选A。 【考点】形容词辨析。 24.【答案】B 【解析】根据本段最后一句中的“so the company offered her the job”可知,只有Jackie的回答令公司满意,所以她被录用了。B项意为“使满意”,符合语境。A项意为“到达,联系上”C项意为“帮助”;D项意为“使惊讶”,均与语境不符。故选B。 【考点】动词辨析。 25.【答案】C 【解析】根据Jackie 的回答“thank you”可知,她是一个有礼貌的人。C项意为“礼貌的”,符合语境。A项意为“勇敢的”;B项意为“聪明的”;D项意为“诚实的”,均与语境不符。故选C。 【考点】形容词辨析。 三、阅读 第一节 阅读理解 26.【答案】A 【解析】根据第三段第四句“Although Lin's family weren't poor, they weren't rich either, and a camera cost a lot of money.”可知,虽然Lin的家并不贫穷,但他们也不富裕,而且相机要很多钱。由此可知,Lin不选择摄影是因为相机太贵。故选A。 【考点】细节理解。 27.【答案】C 【解析】根据画线词所在句后一句“He didn't even know what that meant.”和语境可知,Lin不知道这门课程是什么意思,他会很好奇,说明“Language Art”吸引了他的注意力。由此可知,画线短语意为“引起他的 5 / 8 注意”。故选C。 【考点】词义猜测。 28.【答案】B 【解析】根据第四段内容可知,Lin是个害羞的男孩,不喜欢讲话;根据第五段最后一句中的“it could be done alone”可知,烹饪可以一个人去做(不用和别人交流),所以烹饪跟Lin的性格相配。故选B。 【考点】推理判断。 29.【答案】C 【解析】根据第六段第一句中的“Based on Lin's hobby history, his dad had doubts”和第二段第一句中的“but none kept his interest for more than a week or two”可知,根据以往的经验,Lin的爸爸认为Lin的这个爱好不会持续太久。故选C。 【考点】细节理解。 30.【答案】D 【解析】根据第一段第一句“For his eleventh birthday, Lin was given a gift that would shape his life.”和最后一段最后一句中的“andremembers the special gift he received all those years ago”可知,十一岁时的生日礼物——厨艺课程改变了Lin的人生,令他记忆深刻;首尾呼应。由此可知,“The Birthday Gift”是最好的标题。故选D。 【考点】标题概括。 31.【答案】A 【解析】根据全文内容可知,文章主要介绍了“restaurants”的发展历史,A项准确地概括了文章的主题。故选A。 【考点】主旨大意。 32.【答案】D 【解析】根据第一段最后一句“In fact, there were no menus anywhere.”可知,以前吃饭的地方没有菜单。由此可知,有菜单就是餐馆和早期吃饭的地方的不同之处。故选D。 【考点】推理判断。 33.【答案】B 【解析】根据第三段第四、五句“At that time, soups were considered something that could help‘restore’(恢复)your health-in French the word‘restore’is‘restaurer’-so he called the soups ‘restaurants’.Soon, people started buying Boulanger's soups even when they were not ill.”可知,当时,汤被认为是可以帮助“恢复”健康的东西,“恢复”这个单词在法语中是“restaurer”,所以他把汤称为“restaurants”。很快人们即使在不生病的时候也开始买Boulanger的汤。由此可推断出,他期望生病的人来他的餐馆里吃饭。故选B。 6 / 8 【考点】推理判断。 34.【答案】D 【解析】根据第三段第四句中的“so he called the soups ‘restaurants’”可知,“restaurant”最初是指汤。故选D。 【考点】细节理解。 35.【答案】C 【解析】根据第四段第三句“By the mid-1 800s, there were many types of restaurants throughout the world.”可知,到19世纪中期,世界上已经有很多种餐厅了,由此可知,在19世纪餐馆开始国际化。故选C 【考点】细节理解。 36.【答案】C 【解析】根据第二段第一句“According to BBC News, there are more than 22 000 pieces of space junk floating around the earth.”可知,“these”指的是太空垃圾。故选C。 【考点】词义猜测。 37.【答案】D 【解析】根据第三段第一句中的“a very small piece can break important satelites or become dangerous to astronauts”和第二句中的“crashed into aspaceship”“it could damage the vehicle”可知,在太空中快速移动的小块太空垃圾会破坏重要的卫星或对宇航员造成危险,也会损坏航天飞行器。故选D。 【考点】细节理解。 38.【答案】B 【解析】根据第五段第一、二句“To reduce additional space junk, countries have agreed that all new space tools can only stay in space for 25 years at most. Each tool must be built to fall safely into the earth's atmosphere after that time.”可知,各国希望空间工具回到大气层是为了减少太空垃圾,即不让空间工具成为太空垃圾。故选B。 【考点】细节理解。 39.【答案】B 【解析】根据第六段最后一句“The Germans are building robots that can collect pieces of space junk and bring them back to Earth to be safely destroyed.”可知,德国人计划用机器人收集太空垃圾。故选B。 【考点】细节理解。 40.【答案】A 【解析】根据全文内容可知,文章主要介绍了太空垃圾的危害以及各国为清理这些垃圾所采取的措施。由此推断出,这是一篇环境保护类的文章,可能出自报纸的环境版面。故选A。

广东省广州市2019年中考生物二模试卷(含答案)

广东省广州市2019年中考生物二模试卷(含答案)

广东省广州市2019年中考生物二模试卷

考试时间:60分钟 满分:100分

姓名:__________ 班级:__________考号:__________

题号 一 二 总分

评分

一、选择题(每小题四个选项中,只有一项最符合题意。本大题共33个小题,每小题2分,共66分)1.动植物细胞中都有的能量转换器是( )

A. 细胞核 B. 线粒体 C. 叶绿体 D. 细胞膜

2.下图是探究植物有关生理作用的实验,结果表明( )

A. 光合作用产生氧气 B. 呼吸作用产生氧气

C. 光合作用产生二氧化碳 D. 呼吸作用产生二氧化碳

3.人类对控制癌症有了新思路:饿死癌细胞,同样可以达到控制癌症的目的.这说明细胞的生活需要( )

A. 蛋白质 B. 脂肪 C. 糖类 D. 物质和能量

4.细菌、真菌、动物和植物四类生物的细胞结构中共有的结构是( )

①细胞壁 ②细胞膜 ③细胞质 ④细胞核 ⑤DNA ⑥液泡 ⑦叶绿体 ⑧线粒体

A. ②③⑤ B. ①②⑥ C. ③④⑦ D. ②④⑧

2018年广东省广州市越秀区九年级中考二模物理试卷(无答案)

物理试卷 第1 页 共8页 2018年初中毕业班综合测试(二)

物 理

本试卷分第一部分(选择题)和第二部分(非选择题).第一部分1至4页,第二部分4至8页,共8页.总分100分.考试时间80分钟.

注意事项:

1.答题前,考生务必在答题卡上用黑色字迹的钢笔或签字笔填写自己的考生号、姓名;填写考场试室号、座位号;再用2B铅笔把对应号码的标号涂黑.

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案;不能答在试卷上.

3.非选择题答案必须写在答题卡各题目指定区域内的相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案,改动的答案也不能超出指定的区域;除作图可用2B铅笔外,其他都必须用黑色字迹钢笔或签字笔作答.不准使用涂改液.不按以上要求作答的答案无效.

4.考生必须保持答题卡的整洁.

5.全卷共24小题,请考生检查题数.

第一部分 (选择题 共36分)

一、选择题(每小题3分,共36分)每小题给出的四个选项中,只有一项最符合题意.

1. 如图1所示,小刚身高1.7米,他旁边的恐龙模型高度最可能是

A.1米

B.2米

C.4米

D.10米

2. 图2是电磁波家族,各种电磁波在真空中的传播速度相同.“红巨星”和“蓝巨星”分别是两类恒星。前者呈暗红色,温度较低.而后者呈蓝色,温度极高. 根据所给信息你可以推测得到:

A. 恒星温度越高,发的光频率越低

B. 红巨星发出的红光与X射线都是电磁波

C.蓝巨星发出的蓝光波长比红外线波长长

D.红巨星发出的红光比蓝巨星发出的蓝光在真空中传播的速度小 图1

106 108 1010

1012

1014 1016 1018 频率/Hz

无 线 电 波 紫外线 X射线 γ射线 红外线

红 橙 黄 绿 蓝 靛 紫

图2 电磁波家族 可见光 物理试卷 第2 页 共8页 图5 温度/℃

广东省广州市2018年中考数学二模试卷(解析版)

广东省广州市中考数学二模试卷(解析版)

一.选择题

1.一年大约有31500000秒,用科学记数法表示31500000为( )

A. 3.15×106 B. 3.15×107 C. 3.15×108 D. 3.15×109

2.如图所示几何体的左视图是( )

A. B. C. D.

3.下列事件中,必然事件是( )

A. 抛掷1个均匀的骰子,出现6点向上 B. 两直线被第三条直线所截,同位角相等

C. 366人中至少有2人的生日相同 D. 实数的绝对值是非负数

4.把抛物线y=2x2先向右平移2个单位,再向下平移4个单位,得到的抛物线解析式是( )

A. y=2(x+2)2+4 B. y=2(x+2)2﹣4 C. y=2(x﹣2)2+4 D. y=2(x﹣2)2﹣4

5.下列运算正确的是( )

A. a3•a4=a12 B. m3+m4=m7 C. (a+b)2=a2+b2 D. n6÷n3=n3

6.如图,AB是⊙O的直径,∠BAC=25°,则∠ADC=( )

A. 25 B. 30° C. 45° D. 65°

7.若关于m的二次根式 有意义,则m的取值范围是( )

A. m<1 B. m<1且m≠0 C. m≤1 D. m≤1且m≠0

8.一次函数y1=kx+b和反比例函数y2= 的图象如图,则使y1>y2的x范围是( )

A. x<﹣2或x>3 B. ﹣2<x<0或x>3 C. x<﹣2或0<x<3 D. ﹣2<x<3 9.下列说法不正确的是( )

A. 平行四边形对角相等 B. 对角线互相垂直的矩形是正方形

C. 一组对边相等另一组对边平行的四边形是平行四边形 D. 菱形的对角线互相垂直平分

10.如图,正方形ABCD中,E是AD的中点,AB=8 ,F是线段CE上的动点,则BF的最小值是( )

A. 10 B. 12 C. 16 D. 18 二.填空题

11.一次射击练习中,甲乙两人打靶的次、平均环数相同,S甲2=2.67,S乙2=0.28,则________(填“甲”或“乙”)

2018年广东省广州市中考数学模拟试卷

2018年广东省广州市中考数学模拟试卷

一、选择题(本大题共10小题,每小题3分,共30分)

1. ﹣3的倒数是( )

A. 3 B. ﹣3 C. D.

2. 下列图中,不是轴对称图形的是( )

A. B. C. D.

3. 下列运算结果为m2的式子是( )

A. m6÷m3 B. m4•m﹣2 C. (m﹣1)2 D. m4﹣m2

4. 如图,在△ABC中,若点D、E分别是AB、AC的中点,S△ABC=4,则S△ADE=( )

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

5. 下列说法正确的是( )

A. 掷一枚均匀的骰子,骰子停止转动后,6点朝上是必然事件

B. 甲、乙两人在相同条件下各射击10次,他们的成绩平均数相同,方差分别是S甲2=0.4,S乙2=0.6,则甲的射击成绩较稳定

C. “明天降雨的概率为”,表示明天有半天都在降雨

D. 了解一批电视机的使用寿命,适合用普查的方式

6. 若代数式有意义,则实数x的取值范围是( )

A. x≠0 B. x≥0 C. x≠9 D. x≥9

7. 如图,在Rt△ABC中,∠C=90°,AC=3,AB=5.则cosB等于( ) A. B. C. D.

8. 如图,在△ABC中,AB=AD=DC,∠B=70°,则∠BAC的度数为( )

学|科|网...学|科|网...

A. 75° B. 70° C. 65° D. 35°

9. 如图,AB是⊙O的直径,CD是⊙O上的点,∠DCB=30°,过点D作⊙O的切线交AB的延长线于E,若AB=4,则DE的长为( )

A. 2 B. 4 C. D. 2

10. 已知α、β是关于x的一元二次方程x2﹣(2m+3)x+m2=0的两个不相等的实数根,且满足=1,则m的值是( )

2020年广东省广州市中考英语试卷

第1页(共1页)

2020年广东省广州市中考英语试卷

一、语法选择(共1小题; 每小题15分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,从1~15各题所给的A、B、C和D项中选出最佳选项,并在答题卡上将该项涂黑.

1.(15分)Deep in the forest lives David, who loves books. As soon as he reads one book,

he brings home(1) . Soon the house(2) books. His wife, Alice, is

angry."You(3) do something!"

David thinks hard and has(4) idea. "I can bring my books into the faraway hills

and share(5) I have with the children."

Every week, David sets off across the countryside to faraway villages with his two

donkeys.Early(6) a sunny morning,David and his donkeys stop at a river(7) .Then,from deep in the shadows,a bandit(山贼)jumps out!"Please let us pass," David says."The children(8) ."The bandit takes one book and shouts,"Next time

I want(9) !"

They move on until at last, David sees some houses below. The children run to meet(10) .David reads them story first.(11) the story ends,it's time for

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