单项选择题
1、根据读音，选择出划线部分读音不同的选项。（　　）
A．peace
B．already
C．jeans
D．reason

2、 In the geography lesson,the teacher told the children that the earth_________round like a ball.
A．was
B．is
C．were
D．had been


3、 “求田问舍，怕应羞见，刘郎才气”中刘郎指的是（　　）
A．刘彻
B．刘备
C．刘邦
D．刘裕


4、根据下面内容，回答题：
People need to be active to be healthy. Our modern lifestyle and all the conveniences we've become used to have made us keep a long time sitting, such as sitting around in front of the TV or the computer, riding in the car for even a short trip to the store and using elevators instead of stairs. That's dangerous for our health. Physical inactivity is as dangerous to our health as smoking!
Add up your activities during the day in periods of at least 10 minutes each. Start slowly ... and build up. If you're already doing some light activities move up to more moderate ones. A little is good, but more is better if you want to achieve health benefits.
Scientists say accumulate 60 minutes of physical activity every day to stay healthy or improve your health. Time needed depends on effort -- as you progress to moderate activities, you can cut down to thirty minutes, four days a week.
Physical activity doesn't have to be very hard to improve your health. This goal can be reached by building physical activities into your daily routine. Just add up in periods of at least ten minutes each throughout the day. After three months of regular physical activity, you will notice a difference --people often say getting started is the hardest part.

Nowadays people________.
A．are less active than in the past
B．are more active than in the past
C．are as active as they used to be
D．are as inactive as they used to be


5、根据下面内容，回答题：
A group of scientists rowing toward the center of a lake saw something shocking. They turned back as fast as they could. What had they seen? The lake was boiling!
The group was investigating a crater lake in the mountains of St. Vincent. A crater lake is the mouth of a volcano that has been dormant for some time and has filled with water.
This particular crater was the tip of a volcano called Soufriere, which erupted last in 1902. Since that time, it had not shown any signs of action. But in the fall of 1971, mountain climbers who had hiked near the lake returned to the lowlands with strange stories. They said the water had turned yellow and was giving off a smell like burnt eggs. A seething fog was rising from the lake's surface.
Local scientists rushed to Soufriere to see if this might be the beginning of a new volcanic explosion. They found a huge black mass in the middle of the water. It was a great blob 1,000 feet long and 300 feet wide. Lava had pushed up through the bottom of the lake and formed a new island.
The investigators wanted to make sure that the volcano was safe, and that the lava would not overflow into the surrounding countryside, But they could never reach the island to study it, because the lava was so hot that the water around it bubbled and boiled.

This passage is about________.
A．mountain climbing
B．a boiling lake
C．a new volcanic island
D．a mysterious blob


6、 要约邀请是希望他人向自己发出要约的意思表示。依我国《合同法》的有关规定，以下所列各项中不属于要约邀请的是（　　）。
A．拍卖公告
B．招标公告
C．悬赏广告
D．招股说明书


填空题
7、 环境按性质可分为自然环境、__________和社会环境。


简答题
8、 求函数z=x²+2y²+4x-8y+2的极值．


9、


10、遗忘是识记过的内容不能再认与回忆。信息加工观点认为，遗忘是信息提取不出来。

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