九年级期中试卷及答案哪里有？

九年级上学期期中模拟试卷

（满分：120分 考试时间：120分钟）

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语文部分（共40分）

积累与运用（12分）

1. 下列词语中加点字的注音完全正确的一项是（ ）（3分） A. 亵渎（xiè） 惊骇（hài） 旁骛（wù） 强聒不舍（qiǎng） B. 恪守（kè） 箴言（zhēn） 濡养（rú） 形销骨立（xiāo） C. 鄙薄（bó） 诘难（jié） 嗔怒（chēn） 自吹自擂（léi） D. 佝偻（gōu） 矫揉（jiǎo） 娴熟（xián） 矫揉造作（jiǎo）

2. 下列句子没有语病的一项是（ ）（3分） A. 通过这次社会实践活动，使我们接触了社会，开阔了视野。 B. 我们要善于发现并解决学习中存在的问题。 C. 能否坚持体育锻炼，是拥有健康身体的基础。 D. 为了防止这类交通事故不再发生,交警部门加强了巡查力度。

3. 古诗文默写。（6分） （1）《行路难》（其一）中，表现诗人坚信理想终会实现的坚定信念的句子是：____，____。 （2）《酬乐天扬州初逢席上见赠》中，蕴含新事物必将取代旧事物这一哲理的句子是：____，____。 （3）《水调歌头·明月几时有》中，表达对亲人美好祝愿的千古名句是：____，____。

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数学部分（共40分）

选择题（每小题3分，共18分）

1. 一元二次方程 $x^2 - 2x = 0$ 的根是（ ） A. $x_1 = 0$, $x_2 = 2$ B. $x_1 = 0$, $x_2 = -2$ C. $x_1 = 1$, $x_2 = 2$ D. $x_1 = 1$, $x_2 = -2$

2. 下列图形中，既是轴对称图形又是中心对称图形的是（ ） A. 等腰三角形 B. 平行四边形 C. 矩形 D. 等腰梯形

3. 已知点 $P(-2, 3)$ 关于原点对称的点的坐标是（ ） A. $(2, -3)$ B. $(-2, -3)$ C. $(2, 3)$ D. $(-3, 2)$

4. 用配方法解方程 $x^2 - 6x - 7 = 0$，配方后得到的方程是（ ） A. $(x-3)^2 = 16$ B. $(x-3)^2 = 2$ C. $(x+3)^2 = 16$ D. $(x+3)^2 = 2$

5. 已知 $\odot O_1$ 和 $\odot O_2$ 的半径分别为 $3$ 和 $5$，若两圆内切，则圆心距 $O_1O_2$ 的长为（ ） A. $8$ B. $2$ C. $8$ 或 $2$ D. 无法确定

6. 在 Rt$\triangle ABC$ 中，$\angle C = 90^\circ$，$AC = 6$, $BC = 8$，则 $\triangle ABC$ 的外接圆半径为（ ） A. $5$ B. $6$ C. $7$ D. $8$

填空题（每小题3分，共12分）

7. 若关于 $x$ 的一元二次方程 $x^2 - 4x + k = 0$ 有两个不相等的实数根，则 $k$ 的取值范围是____。

8. 在平面直角坐标系中，将点 $A(3, 2)$ 向左平移 $4$ 个单位长度，再向下平移 $1$ 个单位长度，得到点 $A'$，则点 $A'$ 的坐标是____。

9. 如图，$AB$ 是 $\odot O$ 的直径，点 $C$ 在 $\odot O$ 上，$\angle A = 30^\circ$，则 $\angle B$ 的度数为____。（请在此处插入一个示意图：直径AB，点C在圆周上，连接AC和BC,角A为30度）

10. 一个圆锥的底面半径为 $3$，高为 $4$，则这个圆锥的侧面积为____。（结果保留 $\pi$）

解答题（共10分）

（10分）已知关于 $x$ 的一元二次方程 $x^2 - (m-1)x + m - 2 = 0$。 （1）求证：无论 $m$ 取何实数，该方程总有实数根。 （2）若方程的一个根为 $2$，求 $m$ 的值及方程的另一个根。

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英语部分（共40分）

单项选择（每小题1分，共10分）

1. — Do you know __ girl over there? — Yes. She is my cousin. She is __ honest girl. A. the; a B. a; an C. the; an D. a; a

2. — __ do you go to the library? — Once a week. A. How often B. How long C. How soon D. How far

3. — I'm sorry for being late. — __. The meeting has just started. A. That's all right B. You're welcome C. Never mind D. Don't mention it

4. — What's your plan for the coming vacation? — I __ my grandparents in the countryside. A. visit B. visited C. will visit D. am visiting

5. — This math problem is too difficult. I can't work it out. — Don't worry. Let me help you. Two __ are better than one. A. heads B. hands C. ears D. eyes

完形填空（每小题1.5分，共15分）

阅读下面短文，掌握其大意,然后从各小题所给的四个选项中选出最佳选项。

A young man was very poor. He had nothing but a 6 old shirt. One day, he saw a beautiful girl and fell in love with her at first sight. He wanted to give her a gift, but he had 7 money.

He went to a river and washed his shirt until it was 8 . Then he spread it on the grass to dry. The shirt was so white that it 9 like a flag. When the girl passed by, she saw the "flag" and was 10 by its beauty. She thought it must be a gift from a rich man for her.

The young man was 11 . He didn't tell her the truth. He just smiled and walked away. From that day on, the girl began to 12 him. They often met by the river, and he always waved his "flag" to her.

One day, it rained 13 . The shirt was wet and couldn't be used as a "flag" anymore. The girl came to the river as usual, but she saw nothing. She waited and waited, but the young man didn't 14 . She was very sad and thought he had 15 her.

6. A. clean B. dirty C. new D. old

7. A. a little B. little C. a few D. few

8. A. wet B. dry C. clean D. dirty

9. A. looked B. sounded C. tasted D. smelled

10. A. moved B. bored C. surprised D. interested

11. A. angry B. shy C. happy D. proud

12. A. hate B. know C. love D. miss

13. A. heavily B. lightly C. quietly D. quickly

14. A. come B. go C. appear D. leave

15. A. helped B. cheated C. loved D. forgotten

阅读理解（每小题2.5分，共15分）

阅读下列短文,从每题所给的四个选项中选出最佳答案。

(A)

My grandfather is a teacher. He has been teaching for over forty years. He loves his students and they love him, too. He always tells us, "A good teacher is like a candle. It burns itself to light others."

Last week, one of his former students came to visit him. The student is now a successful doctor. He said, "Mr. Smith, you changed my life. When I was in your class, I was a naughty boy. You never gave up on me. You always encouraged me and told me I could be somebody. Because of you, I worked hard and became a doctor."

My grandfather smiled and said, "That's what teachers do. We plant seeds in students' hearts. We don't know which seeds will grow, but we keep planting."

16. What does my grandfather do? A. A doctor. B. A student. C. A teacher. D. A farmer.

17. What did the former student used to be like? A. He was very successful. B. He was a naughty boy. C. He was a good student. D. He was a doctor.

18. What does the underlined phrase "gave up on me" mean? A. 放弃我 B. 惩罚我 C. 相信我 D. 批评我

(B)

Do you often feel tired and sleepy in the afternoon? If so, you are not alone. Many people feel the same way. This is called the "afternoon slump". Here are some tips to help you get through it.

First, take a short walk. A 10-minute walk can increase your energy and make you feel more awake. Second, eat a healthy snack. Foods like fruits, nuts, or yogurt can give you a boost of energy. Third, drink a glass of water. Sometimes we feel tired because we are a little dehydrated. Finally, if possible, take a 20-minute nap. A short nap can refresh your mind and body.

19. What is the "afternoon slump"? A. A time to take a nap. B. A feeling of being tired and sleepy in the afternoon. C. A healthy snack to eat. D. A 10-minute walk.

20. Which of the following is NOT mentioned as a way to fight the "afternoon slump"? A. Taking a short walk. B. Eating a heavy meal. C. Drinking a glass of water. D. Taking a short nap.

21. What is the main purpose of the passage? A. To tell people why they feel tired in the afternoon. B. To give people some advice on how to fight the "afternoon slump". C. To encourage people to take a nap in the afternoon. D. To tell people the importance of drinking water.

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参考答案与评分标准

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语文部分

积累与运用（12分）

1. B (A项“强聒”应读guā；C项“诘难”应读jié；D项“佝偻”应读gōu)
2. B (A项缺主语，去掉“通过”或“使”；C项两面对一面，去掉“能否”；D项否定词误用，去掉“不”)
3. 古诗文默写（6分，每空1分，错字、漏字、添字均不得分） （1）长风破浪会有时，直挂云帆济沧海。 （2）沉舟侧畔千帆过，病树前头万木春。 （3）但愿人长久,千里共婵娟。

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数学部分

选择题（每小题3分，共18分）

1. A (解：$x(x-2)=0$, $x_1=0$, $x_2=2$)
2. C (A不是中心对称；B不是轴对称；D不是中心对称)
3. A (关于原点对称,横纵坐标都取相反数)
4. A (解：$x^2-6x+9-7-9=0$, $(x-3)^2-16=0$, $(x-3)^2=16$)
5. B (两圆内切，圆心距 $d = R-r = 5-3 = 2$)
6. A (解：斜边 $AB = \sqrt{6^2+8^2} = 10$，直角三角形外接圆直径等于斜边，所以半径 $r = \frac{10}{2} = 5$)

填空题（每小题3分，共12分） 7. $k < 4$ (解：由 $\Delta > 0$ 得 $(-4)^2 - 4 \times 1 \times k > 0$, $16 - 4k > 0$, $k < 4$) 8. (-1, 1) (解：横坐标 $3-4=-1$, 纵坐标 $2-1=1$) 9. 60° (解：$\angle ACB = 90^\circ$ (直径所对的圆周角是直角)，$\angle B = 90^\circ - \angle A = 90^\circ - 30^\circ = 60^\circ$) 10. $15\pi$ (解：圆锥母线 $l = \sqrt{3^2+4^2} = 5$，侧面积 $S_{\text{侧}} = \pi r l = \pi \times 3 \times 5 = 15\pi$)

解答题（共10分） 11. （10分） （1）证明（3分）： $\Delta = [-(m-1)]^2 - 4 \times 1 \times (m-2)$ $= m^2 - 2m + 1 - 4m + 8$ $= m^2 - 6m + 9$ $= (m-3)^2$ $\because$ 无论 $m$ 取何实数，$(m-3)^2 \ge 0$ 恒成立， $\therefore$ 该方程总有实数根。

（2）（7分）：
把 $x=2$ 代入原方程，得：
$2^2 - (m-1) \times 2 + m - 2 = 0$
$4 - 2m + 2 + m - 2 = 0$
$-m + 4 = 0$
$m = 4$
$m$ 的值为 $4$。
当 $m=4$ 时，原方程为 $x^2 - 3x + 2 = 0$。
设方程的另一个根为 $x_2$，
根据根与系数的关系，有 $2 + x_2 = 3$，
$x_2 = 1$。
答：$m$ 的值为 $4$，方程的另一个根为 $1$。

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英语部分

单项选择（每小题1分，共10分）

1. C (第一个空特指，用the；第二个空泛指，且honest以元音音素开头,用an)
2. A (询问频率，用How often)
3. A (回答道歉,表示没关系)
4. C (表示将来的计划,用will)
5. B (谚语“两人智慧胜一人”,用hands)

完形填空（每小题1.5分，共15分） 6. D (根据后文“had little money”和“washed his shirt”可知，他只有一件旧衬衫。) 7. B (little修饰不可数名词money，表示几乎没有。) 8. A (洗完衬衫，它是湿的。) 9. A (衬衫看起来像一面旗帜，look like“看起来像”。) 10. A (女孩被“旗帜”的美所感动/打动。) 11. C (女孩的反应让年轻人很高兴，因为他的“计策”成功了。) 12. C (女孩开始爱上他。) 13. A (下大雨，衬衫湿了就不能当“旗帜”了。) 14. C (女孩等他出现，但他没有出现。) 15. B (女孩认为他欺骗了她。)

阅读理解（每小题2.5分，共15分） 16. C (根据第一段第一句 "My grandfather is a teacher.") 17. B (根据第二段 "When I was in your class, I was a naughty boy.") 18. A (根据上下文，老师没有放弃他，而是鼓励他。) 19. B (根据第一段 "Many people feel the same way. This is called the 'afternoon slump'." 和第二段开头 "Here are some tips to help you get through it." 可知，它指的是下午感到疲倦困倦的状态。) 20. B (文章提到的是吃健康的零食(healthy snack)，而不是大餐(heavy meal)。) 21. B (整篇文章都是围绕如何应对“afternoon slump”给出建议展开的。)