D

Plastic is one of the most important technological discoveries of the 20th century. However, it may soon be replaced. The new development- liquid wood- can replace plastics in all branches of modern-day industries.

Plastic as a material enjoys the biggest demand in the modern world, but it does have a number of drawbacks. First and foremost, plastic isn’t recyclable. Secondly, it contains toxins (毒物) helping develop cancerous diseases. Finally, it’s made of oil and oil reserves aren’t endless.

The liquid wood technology is likely to replace plastic and providing mankind with new materials for many years ahead. Norbert Eisenfreich, a senior researcher at the Faunhofer Institute for Chemical Technology in Germany (ICT), said that arboform, the new material, is made of lignin(木素质）, which can be obtained from soft tissues of wood. Once mixed with several other matenals, it turns into solid and non-toxic alternative for plastics.

ICT team leader Emilia Regina Inone-Kauffmann said the wood-working industry separates wood into three basic components, including lignin. Lignin isn’t used for the production of paper. Specialists of ICT mixed lignin with several natural materials and thus invented the material which could be melted and molded (铸型）.

When solid, arboform looks like plastic and possesses tho qualitie of polished wood. It can be used for the production of any items. Arboform is already used for the production of car parts which require extra strength. In addition, liquid wood can be recycled repeatedly. The material preserved all of its qualities even if it’s reprocessed ten times.

However, the new invention doesn’t enjoy an extensive use due to the high content of sulfur(硫) in it. German researchers are sure to reduce the amount of sulfur by 90% very soon to make arboform usable for home needs.

71. According to the passage, plastic_______.

A. helps us to reduce the use of petrol

B. helps to protect our environment in some way

第二节: 书面表达(满分25分)

假如大学生活即将开始，你将面对新的学习和生活环境，请根据示写一篇英语短文，谈谈你打算如何安排你的大学生活。内容要点应包括：

确定新的学习目标

改进学习方法

学会独立生活

参加各种课外活动

处理好与同学的关系

注意：①内容要连贯、完整；

②词数：100左右（开头已给出的单词不计入单词总数）。

_______ makes a scientific achievement important?

A. It is what that  B. Is it that what      C. What is it that     D. What it is that

We can never expect _______ bluer sky unless we create _______ less polluted world.

A. a; a                   B. a; the                C. the; a                D. the; the

— John failed his final exam.

   —I’m not surprised at the news at all. _______, he is never seen busy with his lessons.

  A. Above all           B. In all                     C. First of all              D. After all

 —Excuse me, Dad, but I’m going to the club to meet my friends in the football team.

   —OK. ______

  A. Have fun        B. Congratulations      C. With pleasure      D. Gook luck

In some countries, ____ is called "equality" does not really mean equal rights for all people.

A. which             B. that              C. what               D. one

Those students ___ in this topic may joing us in the disscussion.

A. interesting   B. interested     C. are interesting    D.are interested

The teacher wanted ___ as correctly as possible.

A. that the work was done   B. the work done  C. that the work did  D. the work to do      

John was seen ____ in by the back door, but nobody saw him ___.

A. to come…to leave  B. come… leave  C. to come… leave  D. come…leaving