题目内容

【题目】目前我国耕地面积只有18.51亿亩。人均耕地仅有1.43亩，不到世界人均水平的40%。近7年来，全国耕地面积减少了1亿亩，其中1 300多万亩是有灌溉设施的优良田。据此回答下列各题。

【1】下列对我国土地资源现状的说法，正确的是 (　　)

A. 还有大面积的宜耕、宜林荒地待垦用

B. 耕地和林地比重小，难利用土地比重大

C. 东南地区耕地广，西北地区林地广

D. 南方平原降水多，故水田集中

【2】土地退化有多种类型，但不包括 (　　)

A. 烧荒导致土地荒芜 B. 水土流失导致表土损失

C. 灌溉不当引起土壤次生盐渍化 D. 过度放牧导致土地沙化

【答案】

【1】B

【2】A

【解析】

【1】我国土地资源总量大，但是后备资源少，A错。耕地和林地比重小，B对。林地主要分布在东北、西南和东南地区，C错。南方降水多，但是水田受地形影响，比较分散，D错。故选B。

【2】土地退化类型是指依据环境及土地退化原因区分出的土地退化类别。其类型有：①土地沙化和荒漠化。②土地盐碱化。③水土流失。④化学污染。⑤土壤肥力下降，不包括烧荒导致的土地荒芜（是由于无人管理，而不代表土地的退化），故选A。

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【题目】2011年五一假期，武定县某高中的张三想约几个同学一起外出旅游。李四提出去香港，王五提出最好去海南三亚，麻六想去日本，侯七提出去昆明。但他们每人只有五百元的花费，又想让旅行社全包。根据他们的实际情况，据此回答下列各题。

【1】他们最宜选择的旅游风景地是：（ ）

A．日本 B．三亚 C．香港 D．昆明

【2】选择的主要理由是：（ ）

A．旅游费用 B．交通条件 C．身体状况 D．旅游安全

【3】影响旅游地选择的最主要的主观因素是：（ ）

A．旅游者的动机和偏好

B．旅游者的资金和闲暇时间

C．旅游者的出游方式

D．旅游地的美学价值

【题目】根据下列汉语或首字母提示填写单词。

1. This portable video game ________(系统)allows you to have fun wherever you are.

2.Many people there disagreed with the new________(理论).

3.What he knows about________(天文学)is out of date.

4.Scientists have unlocked the secret of the________(原子).

5.We cannot________(生存)without air, food and water.

6.A v ________ storm had struck the area.

7.It is h ________ to your health to drink too much.

8.A person, u ________ a machine, is not replaceable.

9.We are planning to travel around the g ________.

10.A r________is a particular system of belief in a god or gods and the activities that are connected with this system.

【题目】B

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

How to prepare for exam?

Here are some tips you can read with your child.

The first step in preparing for examination is to set a fixed time each day to study and a schedule to say when to start the revision and for which subject. The plan should include how many chapters to revise and how many worksheets to work on. 1 . Parents who do not know the examination time schedule can search 'exam timetable' to see the official examination schedule.

2 .

The second thing is to decide on the place to study. Some need total silence in a library before they can concentrate while others like to have some background music like in the cafeteria. 3 . So there is no need to tell your child to change the study place if he is producing the desired results.

4 . For lessons, pupils must participate in lessons and discussions actively. For exercise, work on the simple ones in the textbook. For theory, pupils can use the mind map method to summarize the facts.

At last, study smart. Focus on chapters that are the core of the subject or difficult chapters. 5 .

A. Next the most effective way to revise is to use an active approach.

B. Making good preparations counts.

C. Mind map can help you a lot in your revision work.

D. Your child has to be self-disciplined to follow the plan.

E. It is not necessary to simply read from first to last page.

F. The best time to start revision is one or two months before the examination.

G. Both are alright as long as your child is comfortable with it.

【题目】根据下列汉语或首字母提示填写单词。

1. The summer camp that he r_________to will fall on July 15th.

2. The_________(听众)was no less than five thousand.

3. The dictionary is i_________ for the English beginners.

4. Some new books have been_________(递送)to the school.

5. Please give the problem your careful_________(考虑).

6. He started his c_________as an English teacher.

7. He is a m________student. He never boasts his achievements.

8. The death________(比率，速度)in the worst ten countries is 500 times higher than that in the top ten countries.

9. The government has declared a state of________(紧急情况)following the earthquake.

10. The monarch butterflies complete the whole migration from north to south within several________(代).

【题目】资料：地域文化对人口的影响是通过影响人们的生育意愿而表现出来的，即人们的生育目的、对生育子女数量和性别的看法。据此回答下列下列各题。

【1】下列观念，深受传统农业文化影响的是

①“多子多福”②男性偏好③“地有余而民不足，君子耻之”④重视子女质量⑤注重自我发展⑥“不孝有三，无后为大”

A. ①②③⑥ B. ②③④⑤

C. ③④⑤⑥ D. ①②⑤⑥

【2】婚俗对人口发展的影响，正确的是

A. 初婚年龄大，人口的出生率低 B. 初婚年龄小，人口的自然增长率低

C. 婚姻关系不稳定，则人口的出生率高 D. 离婚率高，则人口的出生率高

【题目】在CO2中，Mg燃烧生成MgO和C。下列说法正确的是( )

A．元素C的单质只存在金刚石和石墨两种同素异形体

B．Mg、MgO中镁元素微粒的半径：r(Mg2＋)＞r(Mg)

C．在该反应条件下，Mg的还原性强于C的还原性

D．该反应中化学能全部转化为热能

【题目】X、Y、Z、W、R属于短周期主族元素。X的原子半径是短周期主族元素中最大的，Y元素的单质常通过分离液态空气得到，Z元素的单质是常见的半导体材料，W与Z同族，R与Y同族，其单质有杀菌作用。下列叙述不正确的是( )

A．X与Y形成的两种化合物中阴、阳离子的个数比均为1∶2，且均能与水反应。

B．根据非金属性强弱，不可能由Z的最高价氧化物制出W的最高价氧化物。

C．Y的简单氢化物的沸点和热稳定性均大于R的简单氢化物。

D．向两份BaCl2溶液中分别通入RY2、WY2，均无白色沉淀生成，但一段时间后，通入RY2的一份中可能产生沉淀。

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