高中英语填空题

The truth     trees are vital to our life is not a secret. They provide us with food, wood and most        (important), oxygen. Now there is one more thing we can add to this list—blocking out harmful bacteria from water.
The discovery        (make) by a team     (consist) of scientists from the Massachusetts Institute of Technology (MIT) and high school students         were seeking a natural water filter—one that would help communities in developing countries that do not have          (accessible) to modern water filter systems.
The     (research), led by Professor Rohit Karnik, decided to turn to trees for help because they could allow liquid to flow through, while blocking out air bubbles.
They began by cutting 1.5-inch-wide sections of tree bark from the branches of a white pine tree. The people related then tested the wood’s filtering ability by pouring water containing red dye particles of different sizes through.   their amazement, they found that it was effective in trapping all the articles.   (encourage), the team conducted     experiment, this time with water that contained bacteria. Sure enough, the sapwood held back 99% of the bacteria, allowing only 1% to flow through.

请写一篇吸烟危害的短文.
内容要点:
吸烟会导致许多疾病,甚至一些危及生命的疾病.
吸烟不但对吸烟者自己有害,也严重影响不吸烟者的健康.
据报道,美国每年至少有32万人因吸烟而丧生.目前约有四千万人仍在吸烟.
可喜的是,越来越多的人已认识到其危害,开始戒烟.
青年学生不应该养成这一恶习,如有这一习惯,应尽早戒除.
                                                                  
                                                                  
                                                                  
                                                                  
                                                                  
                                                                  

The Internet is an      (amaze)information resource．Students，teachers，and researchers use it as        investigative too1．Journalists use it to find information for stories．Doctors use it to learn more about unfamiliar diseases and the       (1ate)medical development．Ordinary people use it        shopping，banking，bill-paying，and communicating with family and friends．People all over the world use it to connect with individuals from        countries and cultures．However, while there are many positive developments       (associate)with the Internet，there are also certain fears and concerns．One concern relates to a lack of control over        appears on the Internet．With television and radio there are editors to check the accuracy or appropriateness of the content of programs，and with television there are        (restrict)on other aspects，for example，what kinds of programs can        (broadcast)and at what time of the day．With the Internet，parents cannot check a published guide to determine what is suitable for their children        (see)．

短文填词
Every individual is a member of a group called the community, and it
is the duty of every citizen _____ ask what he can do for his community.

1．	A good citizen _____(相信) that he should serve the community

2．	and not the community serve h_____. As students, there are many ways

3．	in _____ you can serve the community. Above all, however, you have to

4．	acquire a certain amount of skill and experience b_____ you can be of

5．	service to others. Your school has lots of_____(活动) which prepare

6．	you ____ good citizenship. Many school societies train students to

7．	become good citizens who later p____ in volunteer work and serve the

8．	public in t____ of need. If you serve your community, you will grow

9．	____ to be a good citizen with a strong sense of responsibility.

10．