六(2)班有学生50人,至少有5个人是同一月出生的.______.

题型:解答题

问题:

六(2)班有学生50人,至少有5个人是同一月出生的.______.

考点:抽屉原理
题型:解答题
阅读理解。
     The world out of doors is full of secrets. There are so many secrets, and they are so interesting that
thousands of men and women, boys and girls are busy studying them. All around us are birds, animals,
trees and flowers. The facts about how they live and grow are interesting.
      Do you know that one of the greatest presidents of the USA spent hours and hours studying birds?
A businessman who lived near New York City became so interesting in insects that he began to collect
them. He now has over one thousand different kinds of insects. He kept them carefully in glass boxes.
      Then, come with me, and I will help you find some of the nature's secrets. Let us go quietly through
the forests and fields. Here we shall find how a hare tells the other hares where the danger is. We shall
follow a mother bear and her young babies as they try to look for food and get ready for their long
winter sleep. We shall watch bees dancing in the air to tell the other bees where they can find food. I'll
show you many other interesting things. But please remember to use your eyes and ears carefully when
you go out of the doors. Nature tells the secrets only to people who look and listen carefully.
1. Secrets of nature are so interesting that _____ are busy studying them.
[ ]
A. thousnad of men and women
B. thousands of students
C. thousands of boys and girls
D. Both A and C
2. _____ now has more than one thousand different kinds of insects and he kept them in glass boxes.
[ ]
A. The president of the USA
B. A president of the USA
C. A businessman near New York City
D. A businessman near Washington
3. When bees dance in the air, they can tell the other bees _____.
[ ]
A. where the danger is
B. where their home is
C. where the food is
D. where they can sleep
4. From the passage we can know that _____ usually sleep during the long winter.
[ ]
A. hares
B. bees
C. bears
D. snakes
5. People can get to know the secrets of nature _____.
[ ]
A. by going throught the forests and fields
B. by collecting many kinds of insects.
C. by being interesting in them
D. by looking and listening carefully out of doors.
v
题型:解答题

判断下列命题是真命题,还是假命题;如果是假命题,举一个反例。

(1)若a2>b2,则a>b;

(2)同位角相等,两直线平行;

(3)一个角的余角小于这个角。

题型:解答题

阅读理解。

     When I was fifteen months old, I fell on a glass rabbit which cut my eye badly enough to blind it. And

as I grew, this sightless eye, in so many ways controlled me that I walked with my face looking at the floor so people would not see the ugly me.

     Yet Mama would hold me in her arms, feel my hair gently and say, "If you hold your head up high, it

will be OK. And people will see your beautiful soul." She continued this message whenever I wanted to

hide.

     As a little child, I thought Mama meant, "Be careful or you will fall down or bump into something

because you are not looking." As a teenager, I found that my mama's words helped me begin to realize

that by letting people look at my face, I let them recognize the intelligence and beauty behind my eyes.

     In high school I was successful both academically and socially. I was even elected class president, but

inside me I still felt like a freak (畸形人). When things got really bad, I would cry to my mama and she

would look at me with loving eyes and say, "Hold your head up high and face the world. Let them see the beauty that is inside."

     When I met the man who became my partner for life, we looked each other straight in the eye, and he

told me I was beautiful inside and out. Mama's love and encouragement were the spark that gave me the

confidence to overcome my own doubt.

     "Hold your head up high" has been heard many times in my home. Now, I'm a mother, too. Each of my children has felt its invitation. The gift my mama gave me lives on in another generation.

1. What is TRUE of the writer's eyes? 

A. She was blind in one eye when she was born.

B. Her blindness was caused by a traffic accident.

C. She became blind in one eye because of a fall.

D. She lives unhappily because of her blindness.

2. When the writer was a high school student, she ______. 

A. was proud of her beauty that was inside

B. was active in taking part in social activities

C. was filled with doubts and worries about her sightless eye

D. was good at her study but sometimes lacked confidence

3. What does the underlined word "invitation" mean?

A. encouragement

B. advantage

C. warmth

D. weight

4. What's the author's purpose in writing the passage?

A. To show the power of confidence.

B. To express her gratitude (感激之情) to her mom.

C. To explain how to build confidence.

D. To inspire people to face difficulties

题型:解答题

底盘是整车的骨架,也是消防车的行驶装置。其主要功用是将消防车各总成和部件连成一个整体,并支承全车重量。

题型:解答题

男性,28岁,活动后心悸、气促1年,2年前有心肌炎病史。查体:血压140/90mmHg,心脏叩诊浊音界扩大,心尖冲动及第一心音减弱,心尖部有3/6级收缩期杂音,心率110次/分,频发期前收缩,双肺底少量湿啰音,颈静脉怒张,肝肋下3cm,双下肢轻度水肿,心电图示频发室性期前收缩

为进一步确诊应进行的检查是()

A.血沉

B.动态心电图

C.超声心动图

D.X线胸片

E.心肌酶谱

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