结直肠癌是常见的消化道恶性肿瘤，占消化道肿瘤的第2位，好发部位为降结肠及直肠乙状结肠

常温常压下，某气态物质含有2.68×10²³个分子，而这些分子又含有8.04×10²³个原子，则该物质是一种（　　）

A．单质

B．化合物

C．混合物

D．以上都有可能

“有一天，两个强盗闯入了夏宫，一个动手抢劫，一个把它付之一炬。”法国大作家雨果讲的事情发生在(    )

A．鸦片战争期间

B．甲午中日战争期间

C．第二次鸦片战争期间

D．八国联军侵华期间

阅读理解。

     A teacher of English as a second language is the 2004 Teacher of the Year in the United States .

Kathy Mellor of Rhode Island will spend the next year as an international spokeswoman for education.

President Bush and his wife, Laura ,honored her during a ceremony (仪式) at the White House last week.

    For the past nineteen years ,Kathy Mellor has taught English as a second language at Davisville Middle School in North Kingstown, Rhode Island ,in the northeastern United States .She redesigned the program

for E.S.L students at her school to provide each student with one to three periods per day in classes for

English learners .How much instruction the students get depends on their level of skill in listening ,speaking ,reading and writing. The amount of time they spend in these classes in reduced as their level of English

increases.

    A teacher describes this as the most successful E.S.L. program in North Kingstown. She also praises

Kathy Mellor for providing help to students and their families by forming a local parents group for

speakers of other languages .This improved their ability to help their children.

    Kathy Mellor earned a master's degree in education from Rhode Island College. She studied teaching

English as a second language.

    She was chosen for the national honor of Teacher of the Year from among top teachers in each of the

fifty states .As Teacher of the Year ,Kathy Mellor will travel around the United States and to other

countries .She will talk about the importance of education and the work of teachers.

1.This passage is mainly about________.

A. Teacher of the Year 2004 in the United States    

B. Ms Mellor's English teaching instruction

C. Ms Mellor's teaching skills of learning English  

D. praises to Ms Mellor from other teachers

2.What does "E.S.L." in the passage stand for? 

A. English study learners.            

B. English speaking and listening.

C. English special learners.            

D. English as a second language.

3. From this passage we can learn that ________.

A. middle school teachers from each state are honored Teachers of the Year

B. middle school teachers in the USA have to get master's degrees

C. Ms Mellor's students have no problems in learning English

D. the American government pays much attention to education

社会经济的发展大致可以划分的阶段包括有（）

A.前运输化

B.初步运输化

C.完善运输化

D.后运输化

驯化