【1】“旅行者”1号在发射后的飞行过程中

A．穿越密集的小行星带后与太阳系最大的行星近距离相望

B．沿途先后穿越了类地行星、远日行星、巨行星轨道面

C．共观测到六次太阳耀斑的周期性活动变化

D．观测到太阳系八颗行星的自转方向全部相同

【2】描述“旅行者”1号目前所处位置时，最合适的应该是在

A．地月系 B．太阳系 C．银河系 D．河外星系

【3】“旅行者”1号若在今后的飞行中发现一颗适合生命存在的行星，可推断该行星

A．自转周期与地球相同 B．可能存在液态的水

C．大气成分以氮、氧为主 D．表面有肥沃的土壤

--- ______.It must be the window-cleaner working, next door.

A. I’m not sure

B. I hope not

C. I’d rather not

D. I don’t think so

【1】下列因素对“四极”形成影响较小的是

A．纬度位置和海陆位置 B．大气环流

C．地形起伏 D．洋流

【2】下列因素中与⑤处环境特征关联最小的是

A．受副热带高压控制 B．远离太平洋

C．高大山地阻挡海洋水汽 D．远离大西洋

【3】关于我国地理“四极”特征变化趋势图，叙述正确的是

A．①处的土壤特点是呈酸性，③处的气候具有极冷的特点。

B．④处的天然植被是温带草原，⑤处的大型动物具有耐寒的特点。

C．①→⑤变化最为明显的标志是水热状况的差异。

D．③与⑥热量条件相似，而自然带差异很大，这体现了地理环境的垂直分异规律。

【1】关于图中各圈层的正确叙述是

A．地球外部圈层由A、B、C三部分组成，其中C为生物圈

B．地球内部圈层由E、F、G三部分组成，其中G为地核

C．E、F合为岩石圈

D．各圈层间相互联系、相互制约，形成自然环境

【2】一般认为，岩浆的主要发源地是

A．软流层 B．下地幔 C．图中D层 D．图中G层

【3】下列关于地球内部圈层结构的叙述，正确的是

A．划分依据是各层温度的变化 B．地壳由岩石组成，厚度均一

C．岩石圈是指地壳和上地幔的顶部 D．莫霍面是地幔与地核的分界面

【1】图中各省市区编号是2010年某项指标在全国省级行政区中的排名，该指标可能是

A．人口 B．面积 C．城市化水平 D．经济总量

【2】长江中游②河段的特征是

A．江水浑浊含沙量大 B．水量巨大水能丰富

C．河道弯曲水流平缓 D．峡谷幽深猿声鸣啼

A. technical

B. abnormal

C. physical

D. universal

A．SiO2和CO2都是酸性氧化物，均可与NaOH溶液反应

B．水晶项链、石英钟都是硅酸盐制品

C．SiO2和CO2在一定条件下，均可与CaO发生反应

D．SiO2不溶于水，而CO2可与水反应，生成H2CO3

【1】据图可知

A．耕地比重大的地区，25°以上坡耕地比重小

B．25°以上坡耕地比重大的地区，灌溉设施少

C．东部地区有灌溉设施的耕地面积最大

D．中部地区25°以上坡耕地面积大于东部地区

【2】东北部地区有灌溉设施耕地比重最小，主要原因是该区

A．农作物耐旱程度高，需水量小

B．耕作方式先进，机械化程度高

C．春季土壤水分多，夏季降水丰富

D．河流较多，无需修建大量灌溉设施

【1】此类洪水的主要补给水源为

A．大气降水 B．季节性积雪融水

C．冰川融水 D．湖泊水

【2】一日一峰反映当地的环境特征是

A．气候大陆性强 B．降水变率大

C．冰雪融化快 D．自然灾害多

Physical education plays a vital role in the students’ development and growth. According to recent medical studies, physical well-being of a student is directly related to his or her performance whether in class or in the office. 【1】

It’s a link to good health.

【2】 It’s only in physical educational classrooms that students learn the value of taking care of themselves through proper grooming, healthy eating and regular exercise.

【3】

Many doctors today agree that obesity is a serious health risk. Without any form of diet management and control with the numerous processed food students intake every day, a student’s health can easily be at risk to many diseases. Physical education in school is a preventive measure to teach students the value of regular exercise.

It promotes academic learning.

Physical health allows students to function better in classrooms. A good cardiovascular system developed from regular exercise promotes excellent blood and oxygen circulation. 【4】

This circulation produces longer attention span during classes allowing longer concentration and absorption.

It builds self-trust.

Students who are active in physical activities are more confident with themselves according to most social school studies. It’s probably because of the self-discipline and dedication to excel in a sport that brings out the best in students. In school, the physical education program introduces these sport activities to students. 【5】

It promotes a physically active lifestyle.

The purpose of physical education is to instill in students, at an early/span> age, the value of self-preservation and choosing a lifestyle that is good for both the mind and body.

A．The article will give you reasons to agree.

B．It is the best way to cure your illnesses.

C．The value of physical fitness can never be overstated.

D．It’s a preventive measure against disease.

E．They can make choices about which sport they get involved in.

F．Some students prefer to abandon such activities.

G. This means more nutrients circulate throughout the body.