4. The headmaster thought highly of such v as hard-working,honesty,courage and truthfulness shown by many students in our school.
科目：高中英语 来源： 题型：
校英文报"音乐乐园"栏目以"我喜爱的音乐形式" 为题征文，请你写一篇英语短文进行投稿。内容包括：
1. 你喜欢的音乐类型；
2. 喜欢该类型音乐的原因；
3. 音乐在你的生活中扮演的角色。注意：1. 词数100左右;
2. 可迠当增加细节，以使行文连贯。
查看答案和解析>>
科目：高中英语 来源： 题型：
Harvard researchers have created a tough,low-cost,biodegradable (可生物降解的) material inspired by insects' hard outer shells. The material's in?ventors say it has a number of possible uses and someday could provide a more environmentally friendly alternative to plastic. The material,made from shrimp (奸) shells and proteins produced from silk,is called "shrilk". It is thin,clear,flexible and strong.
A major benefit of the material is its biodegradability. Plastic's toughness and flexibility represented a revolution in materials science during the 1950s and 1960s. Decades later,however,plastic's very durability (耐用性) is raising questions about how appropriate it is for one-time products such as plastic bags,or short-lived consumer goods,used in the home for a few years and then cast into a landfill where they will degrade for centuries. What is the point of making something that lasts 1,000 years?
Shrilk not only will degrade in a landfill,but its basic components are used as fertlilizer (肥料) ，and so will enrich the soil.
"Shrilk has great potential," the inventors said. Materials from which it is made are plentiful in nature,found in everything ranging from shrimp shells,insect bodies to living plants. That makes shrilk low-cost,and its mass production possible should it be used for products demanding a lot of material.
Work on shrilk is continuing in the lab. The inventors said the material becomes flexible when wet,so they're exploring ways to use it in wet environ?ments. They're also developing simpler production processes,which could be used for non-medical products,like for computer cases and other products in?side the home. They're even exploring combining it with other materials,like carbon fibers,to give it new properties.
1. Paragraph 1 of the passage is mainly about shrilk's .
A. remarkable design B. interesting name
C. major features D. basic elements
2. What has become a concern about plastic?
A. Using it properly.
B. Producing it cheaply.
C. Developing its properties quickly.
D. Evaluating its contributions fairly.
3. According to the inventors,shrilk has great potential partly because .
A. it can help plastic degrade
B. it can be found in living things
C. its mass production has been realized
D. its raw materials are abundant in nature
4. What are the inventors doing in the lab?
A. Replacing carbon fibers with shrilk.
B. Testing shrilk's use in wet conditions.
C. Making shrilk out of used household goods.
D. Improving shrilk's flexibility for medical purposes.
5. Which of the following can be the best title for the passage?
A. Recent progress in environmental protection
B. Benefits of insects in scientific research
C. The harm of one-time products
D. A possible alternative to plastic
查看答案和解析>>
科目：高中英语 来源： 题型：
knock into， break down， in other words， devote to， rely on
1. When experiments are to be made,one cannot the human senses too much to make accurate observation.
2. When you play football,it's dangerous to players and fall down.
3. Old fashioned phones matter when wireless networks in disasters.
4. I don't think we shouldany more time this question.
It wastes our time and energy.
5. Marty's disability is "one in a million". ， there are not many people in the world like him.
查看答案和解析>>
科目：高中英语 来源： 题型：
10. The boy had some problems with his (hear) . You need speak to him louder.
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com
