Although the weathermen’s forecasts for a month ahead are only little better than guesswork, they are now making long-term forecasts into the next century with growing confidence. The main trend in the world’s climate in the coming years will, scientists say, be a predictable result of man’s activities.
At the start of the industrial revolution nearly two centuries ago, man set off a big experiment in planetary engineering. Unaware of what he was doing, he spared no thought for the consequences. Today the possible outcome is alarmingly clear, but the experiment is unstoppable. Within the lifetime of many of us, the Earth may become warmer than it has been for a thousand years. By the middle of this century it may be warmer than it has been since the last Ice Age.
A warmer climate may seem welcome, but it could bring many dangers： damages to crops in the world’s main food-producing areas, famine(饥荒),  economic instability, civil unrest and even war.
In the much longer term, melting of the great ice-caps of Greenland and Antarctica could raise sea-levels throughout the world. The average sea-level has already risen a foot since the turn of the last century, and if the ice-caps disappear completely, it would rise by nearly 200 feet. Complete melting might take many centuries, but even a small increase in sea-level would threaten low-lying parts of the world such as the Netherlands.
44. Long-term weather forecasts beyond the year 2050 may seem strange because ____.
A. none of us will be alive then
B. weathermen can even forecast next month’s weather correctly
C. weathermen can forecast much better than they used to
D. no one can stop engineering experiments
45. Weathermen believe that our future climate will be the direct result of ____.
A. the big scientific experiment       B. clever long-term forecasts
C. the melting of the ice-caps          D. planets changing course
46. One of the results of a warmer world climate could be ____.
A. an increase in food production
B. greater co-operation between countries
C. the death of millions of people from starvation
D. a reduction in the amount of oil we use
47. Scientists are fairly sure that by the year 2050, _______.
A. the sea-level will have risen obviously
B. there will have been the Third World War
C. most countries will have been flooded
D. the polar ice-caps will have melted completely

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

Here are some comments on Li Hua from his classmates.

Lily said, "Li Hua is the smartest student in our class and usually scores the highest marks in the English and mathematics exams. His homework and assignments are always done to a very high standard so our teachers ask us to follow his example. We all admire his intelligence."

Kate said, "Li Hua is really a hard-working student. He spends at least four hours every day reviewing his lessons and his homework is never late. As the exams get closer he becomes even more diligent and works into the early hours of the morning, making sure he has gone over all of the information covered in our classes."

John said, "Li Hua is the kind of person who is easy to co-operate with. Although he's very clever he is still willing to listen to others' opinions and take their suggestions. When we do groupwork in class we all want to be in his group because he always does his share of the work and is easy to get along with."

Tim said, "Li Hua is the class monitor and the most helpful student in our class. He always makes sure the classroom is kept clean and assists the teacher in handing out and collecting the students' books and homework. When a student is absent from school he will call and tell them what they have missed."

【写作内容】

假设你叫李平，你的同学李华拟申请到美国某大学学习。申请材料需包括同伴的推荐信。李华邀请你为他写一封推荐信。上文是其他同学对李华的一些评价，请根据这些材料和你自己对李华的看法，写一封推荐信。以下是信的内容（信的开头和结尾已经为你写好）：

1. 以约30个词概括同学们眼中李华的特点和优点；

2. 以约120个词表达你对李华的看法，并包括如下要点：

⑴ 你对同学们评价意见的看法；

⑵ 以你和李华之间的经历来说明其中的一点看法。

【写作要求】

1. 作文中可使用自己的亲身经历或虚构的故事，也可以参照阅读材料的内容但不得直接引用原文中的句子；

2. 信中不能出现真实的姓名和学校名称。

阅读下面的短文，然后按照要求写一篇150左右的英语短文。 

Here are some comments on Li Hua from his classmates.

Lily said, Li Hua is the smartest student in our class and scores the highest marks in the English and mathematics exams. His homework and assignments are always done to a very high standard so our teachers ask us to follow his example. We all admire his intelligence.

Kate said, Li Hua is really a hard-working student. He spends at least four hours every day reviewing his lessons and his homework is never late. As the exams get closer he becomes even more diligent and works into the early hours of the morning, making sure he has gone over all of the information covered in our classes.

John said, Li Hua is the kind of person who is easy to co-operate with. Although he’s very clever he is still willing to listen to others’ opinions and take their suggestions. When we do our groupwork in class we all want to be in his group because he always does his share of the work and is easy to get along with.

Tim said, Li Hua is the class monitor and the most helpful student in our class. He always makes sure the classroom is kept clean and assists the teachers in handing out and collecting the students’ books and homework. When a student is absent from school he will call and tell them what they have missed.

[写作内容]

假如你是李平，你的同学李华拟申请到美国某一大学学习。申请材料需包括同伴的推荐信。李华邀请你为他写一封推荐信。上文是其他同学对李华的一些评价，请根据这些评价和你自己对李华的看法，写一封推荐信。以下是信的内容 （ 信的开头和结尾已经为你写好 ）

以约30个词概括同学们眼中李华的特点和优点；

以约120个词表达你对李华的看法，并包括如下要点：

你对同学们评价意见的看法；

以你和李华之间的经历来说明其中的一点看法。

[写作要求]

1. 作文中可以使用亲身经历或虚构的故事，也可以参照阅读材料的内容，但不得直

接引用原文中的句子。

2.信中不能出现真实姓名和学校名称。

[评分标准]

概括准确，语言规范，内容合适，篇章连贯。

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。
Here are some comments on Li Hua from his classmates.
Lily said, "Li Hua is the smartest student in our class and usually scores the highest marks in the English and mathematics exams. His homework and assignments are always done to a very high standard so our teachers ask us to follow his example. We all admire his intelligence."
Kate said, "Li Hua is really a hard-working student. He spends at least four hours every day reviewing his lessons and his homework is never late. As the exams get closer he becomes even more diligent and works into the early hours of the morning, making sure he has gone over all of the information covered in our classes."
John said, "Li Hua is the kind of person who is easy to co-operate with. Although he's very clever he is still willing to listen to others' opinions and take their suggestions. When we do groupwork in class we all want to be in his group because he always does his share of the work and is easy to get along with."
Tim said, "Li Hua is the class monitor and the most helpful student in our class. He always makes sure the classroom is kept clean and assists the teacher in handing out and collecting the students' books and homework. When a student is absent from school he will call and tell them what they have missed."
【写作内容】
假设你叫李平，你的同学李华拟申请到美国某大学学习。申请材料需包括同伴的推荐信。李华邀请你为他写一封推荐信。上文是其他同学对李华的一些评价，请根据这些材料和你自己对李华的看法，写一封推荐信。以下是信的内容（信的开头和结尾已经为你写好）：
1. 以约30个词概括同学们眼中李华的特点和优点；
2. 以约120个词表达你对李华的看法，并包括如下要点：
⑴ 你对同学们评价意见的看法；
⑵ 以你和李华之间的经历来说明其中的一点看法。
【写作要求】
1. 作文中可使用自己的亲身经历或虚构的故事，也可以参照阅读材料的内容但不得直接引用原文中的句子；
2. 信中不能出现真实的姓名和学校名称。