八年级(初二): 语文 数学 英语 物理 生物 历史 道法 地理 

八年级(初二)试题

已知如图,△ABC中,∠ACB=90°,CD⊥AB,垂足为D,AE平分∠CAB,交CD于E,EF∥BC交AB于F,G为BC上一点,连接FG.

  1. (1) 求证:△AEC≌△AEF;
  2. (2) 若∠EFG=∠AEC,求证:FG∥AE.
中,
阅读理解

Most students do not enjoy doing housework. Some of them think that cleaning the bathroom or cooking dinner for their family is boring. However, if you try the following ways, you will find that housework is not as boring as you think.

◆ Learn to do small things: You should learn to do small things, for example, you can do the dishes, sweep the floor or make the bed. Part of growing up is to be able to make care of yourself. Doing some small things around the house shows that you are becoming responsible (有责任感的).

◆ Divide (划分) housework among the family: In fact, it's too tiring for one person to do all the housework alone. It's good to divide housework into different parts. All the family members will do the housework together. Dividing housework among all the family members will make everyone's job much easier.

◆ Make it fun: Cooking is one part of housework. Cooking can be fun if you put your heart into it. If you learn how to cook your favorite food, you will also get a feeling of satisfaction (满意).

  1. (1) Most students think doing housework is           .
    A . interesting B . boring C . difficult D . easy
  2. (2) Doing some small things around house helps you           .
    A . take care of yourself B . be more friendly C . become more popular D . grow up healthily
  3. (3) Why shouldn't one person do all the housework alone?
    A . Because it is boring. B . Because it is difficult. C . Because it is tiring. D . Because it is not exciting.
  4. (4) How many ways can we try to do the homework according to the passage?
    A . Three B . Four C . Five D . Six
  5. (5) What's the main idea of the passage?
    A . It's about how to do the housework more easily. B . It's about some boring chores we have to do. C . It's about how to divide housework into parts. D . It's about how to find the joy of cooking.
如图所示,一束光从空气斜射向水面,请画出折射光线.

以下变异实例中,属于不遗传的变异是(    )

A . 人的体细胞中若多一条21号染色体,将表现为先天愚型 B . 把相同的小麦种子,播种在水肥条件不同的环境里,所结籽粒的饱满程度不同 C . 应用空间技术育种培育的太空椒 D . 某对色觉正常的夫妇生下个色盲的儿子
如图,已知四边形 中, ,求 的长.

 

进行百米赛跑时,观众认定跑在前面的人跑得快,他采用的是“相同” 方法;而裁判员则认定,到达终点计时少的人运动得快,他采用的是“相同”的方法。
学校组织同学们进行体检,现有以下四种规格的刻度尺,在测量同学们的身高时应选用(   )
A . 同学们常用的20cm,分度值是1mm的刻度尺 B . 数学老师常用的量程是50cm,分度值是1cm的三角板 C . 总务处老师常用的量程为2m,分度值为1cm的钢卷尺 D . 体育老师常用的量程为30m,分度值是1dm的皮尺
如图,已知AB=DC , ∠ABC=∠DCBEACBD的交点.求证:AC=DB

补全对话(选择)。

A:

B: I feel weak. I can hardly do any work, doctor.

A:

B: A month ago.

A: Do you have a headache?

B: No, I don't.

A:

B: Yes, I sleep very well.

A: Do you often have breakfast?

B: No, I don't. And I have little food for lunch because I want to keep thin.

A: Oh, I see.  You don't need to take medicine. You need to eat more food and do some exercise every day.

B: OK. I'll do as you say.

A:

B: Thank you very much.

 

A. Do you sleep well?                          B. Do you do exercise?

 C. Do you often have breakfast?         D. What's the matter, madam?

 E. There's nothing serious.                  F. When did it start?

 G. I hope you feel better soon.

法国作家雨果说“;世界上最广阔的是海洋,比海洋更广阔的是天空,比天空更广阔的是人的胸怀。”这句名言告诉我们,当与同学发生矛盾时,学会宽容是我们的智慧,这是因为(    )

宽容是中华民族的传统美德

②只有宽容,才是化解矛盾和冲突的最好办法

③宽容是一个人的修养,又是交往的基本法则

④对别人过失的宽容,可以将矛盾与冲突化解于无形之中

A . ①②④ B . ①③④ C . ①②③ D . ②③④
农业包括种植业、畜牲业、林业、渔业四大部门。请在下图中A、B、C、D四地合理安排四大部门。

(1)A 业      B 业     C 业      D 业
(2)以上安排符合了发展农业要  的原则。

如图,在△ABC中,点D是AB边上的一点,且AD=3BD,连接C并取CD的中点E,连接BE,若∠ACD=∠BED=45°,且CD=6 ,则AB的长为

阅读下图(1838—1852年英国制造品输华值),对图中信息解读正确的是(    ) 

 

A . 鸦片战争后英国对华商品输出持续增长 B . 五口通商便利了英国对中国的商品输出 C . 英国发动两次鸦片战争占领了中国市场 D . 中国的民族资本抵制了英国的商品倾销
1896年春,谭嗣同写下《有感一诗》:“世间无物抵春愁,合向苍冥一哭休。四万万人齐下泪,天涯何处是神州!”谭嗣同之所以如此悲愤悲伤是因为(  )
A . 中国开始沦为半殖民地半封建社会 B . 甲午中日战争后民族危机空前严重 C . 戊戌变法失败使得维新派痛心疾首 D . 清政府成为帝国主义统治中国的工具
如图所示,两条入射光线分别过凸透镜的焦点F和光心O , 请分别画出经过凸透镜折射后的光线。

如图,过A点的一次函数的图象与正比例函数y=2x的图象相交于点B,这个一次函数的表达式是( ).

A . y = 2x+3 B . y = x-3 C . y = x+3 D . y = 3-x
如图所示的光现象中,对其所涉及的物理知识,下列解释合理的是(   )

A . 甲图中,月食是由于光沿直线传播而形成的 B . 乙图中,塔在水中“倒影”是由于光的反射而形成的实像 C . 丙图中,放大镜把字“放大”是由于放大镜具有发散作用 D . 丁图中,近视眼形成原因是晶状体太薄,折光能力太弱,需要用凸透镜矫正
化学源于社会又服务于社会,通过化学的学习,你是否对身边的物质有了新的认识,下列物质中,不属于溶液的是(  )

A . 泥水 B . 硬水 C . 矿泉水 D . 生理盐水
How are the speakers going to the hotel?
A . By bus. B . By taxi. C . By underground.