2015-2016学年山东省烟台市龙口市七年级下期中五四学制生物试卷(带解析)

适用年级:初一
试卷号:350945

试卷类型:期中
试卷考试时间:2016/6/15

1.单选题(共1题)

1.
褐马鸡分布在我省西部、山西省北部和北京西部山区。属国家一级重点保护动物。褐马鸡濒危灭绝的主要原因是
A.自然选择B.人类对动植物资源合理的开发和利用
C.用进废退D.人类对野生动物栖息环境的污染和破坏

2.选择题(共1题)

2.

阅读理解

    Imagine this situation: You are walking along the street when you see a classmate coming toward you. As she approaches, your classmate suddenly raises her eyebrows. What does her facial expression tell you?

    The human face is an important communication tool. We often express our feelings nonverbally by doing things like smiling or frowning. Sometimes we use facial expressions to add information to something we are saying. Think again about your classmate. As she raised her eyebrows, she probably said, ‘Oh, what a surprise to see you here!”Both her face and words expressed her feelings. However, sometimes our facial expressions do not match our words, especially when we are trying to hide our feelings. If someone says to you, ‘I'm fine,' but he is looking down and frowning, how do you think he really feels?

    Facial expressions have different meanings in different cultures. Miscommunications can happen even when two people are speaking the same language. In many cultures, for example, a smile communicates happiness or amusement. In some Asian countries, people also smile when they are embarrassed. Seeing this, a Westerner might be confused and think the Asian person is laughing. In North and South America, and many European cultures, a speaker and listener look at each other directly while talking. In those cultures, looking down or away from a speaker often suggests boredom. In many Asian cultures, looking at someone directly in the eyes while speaking is considered rude.

    Facial expressions communicate important messages, and can sometimes be more powerful than words. How do people in your culture use them to communicate?

3.填空题(共1题)

3.
有人用鸡作了如下的实验:
A实验:取活的禽流感病毒注射在一只鸡的体内,不久,此鸡便死亡.
B实验:取灭活的禽流感病毒注射在另一只鸡的体内,经过几周后,让此鸡的体内产生抗体,然后,再取活的禽流感病毒注射在它的体内,结果它存活下来.
据上述实验回答:
(1)B实验中说明鸡体内产生了抵抗禽流感病毒的 ,鸡产生的这种免疫属于 免疫.
(2)将另一种其他病毒注射进经过B实验处理的鸡体内,鸡是否能存活? 为什么?
(3)人类的计划免疫中,相当于上述实验的是
试卷分析
  • 【1】题量占比

    单选题:(1道)

    选择题:(1道)

    填空题:(1道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:1

    7星难题:0

    8星难题:1

    9星难题:0