space, and special liquid gels (胶) are used to help plant growth.
Scientists are also working on the plants themselves. They are trying to make plants grow more rapidly and grow with less water and light in space, and they are looking for ways to make plants more resistant to disease. ___50___ Imagine that deserts may one day provide lots of fresh food for local people, saving transportation costs. Similarly, plants that are resistant to disease could provide an important food supply. With the world’s population now at seven billion (十亿) people, our astronaut gardeners may help discover ways to feed those billions.
A. Every plant grown in space must have several uses.
B. However, there are challenges with growing plants in space. C. Such methods may result in improvements back here on Earth. D. The cost of taking anything into space is about $22,000 per kilogram. E. Specialized containers are being developed to help the plants grow correctly.
F. Astronauts will welcome the addition of fruits and vegetables to their diet of dry foods.
G. Currently all oxygen is taken aboard in tanks and then caught again so it can be reused.
第三部分：书面表达（共两节，35分） 第一节 （15分）
假设你是红星中学高三学生李华，准备加入学校的一个学生社团。请给你班的交换生Jim写封电子邮件，向他介绍这个社团，希望他能够一起参加。邮件的内容包括：
1. 社团的名称; 2. 社团的活动内容； 3. 询问对方的意向。 注意：1. 词数不少于50；
2. 邮件的开头和结尾已给出，不计入总词数。
Dear Jim,
_______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ Yours, Li Hua
（请务必将作文写在答题卡指定区域内）
第二节 （20分）
假设你是红星中学高三学生李华。请根据以下四幅图的先后顺序，介绍上周末你陪同交换生游览长城的完整过程，并以“Our Trip to the Great Wall”为题，给
校刊“英语角”写一篇英文稿件。词数不少于60。
Our Trip to the Great Wall
_____________________________________________________________________________
（请务必将作文写在答题卡指定区域内）