问题 填空题

非生物成分包括______、______、______和______等.它们为生物提供______、______和______.

答案

在一定的地域内生物与环境所形成的统一整体叫生态系统,生态系统的组成包括生物部分和非生物部分,非生物部分包括阳光、空气、温度、水分、土壤等,生物包括生产者(绿色植物)、消费者(所有动物)和消费者(腐生细菌和真菌),它们为各种生物提供必要的营养元素,是生物赖以生存的物质和能量的源泉,并共同组成大气、水和土壤环境,成为生物活动的场所,为各种生物提供必要的生存环境. 

故答案为:阳光;空气;温度;水分;物质;能量;生存环境;

阅读理解
阅读理解。
                                                                                                                   December 25, 2006
         Dear Rose,
         How are you?
         I like your programmes very much. They're very interesting and I can learn a lot from them. I
like travelling and I have won a free four-week trip to England, but I know little about the British way
of life. Would you please write to tell me something about the British meals?
         Thank you.
                                                                                                                                  Yours,
                                                                                                                                Wang Lin

                                                                                                                        January 1, 2007 
        Dear Wang Lin,
        It's very helpful to know something about the British meals before travelling. In many English
houses, people eat four meals a day. They are breakfast, lunch, tea and dinner.
        Breakfast takes place at any time from 7:00 to 9:00 in the morning. They usually have eggs,
bread with butter, cheese and so on. English people drink tea or coffee at breakfast. Lunch comes at
one o'clock. It can be a hamburger or a three-course (三道菜) meal. Afternoon tea is between 4:00
pm and 5:00 pm. Dinner begins at about half past seven. The first course is soup. The next is often
meat or fish with vegetables. Then come fruits of different kinds: apples, pears, bananas and so on.
But not all English people eat like that. Some of them have their dinner in the middle of the day. Their
meals are breakfast, dinner, tea and supper. And all these meals are usually simple.
         Wish you a good time in England!
                                                                                                                                 Yours,
                                                                                                                                  Rose
1. Wang Lin wrote to               .
[ ]
A. say hello to Rose
B. ask Rose about the British meals
C. tell Rose about the free trip
D. tell Rose that he liked her programmes
2. The possible time for breakfast in England is ________.
[ ]
A. from 7:00 pm to 9:00 pm
B. from 7:00 am to 9:00 am
C. from 4:00 pm to 5:00 pm
D. from 4:00 am to 5:00 am
3. In England, afternoon tea often takes place ________.
[ ]
A. before lunch
B. between breakfast and lunch
C. during supper
D. between lunch and dinner
4. The second course at dinner is often ________ at British meals.
[ ]
A. soup
B. cheese
C. bread with butter
D. meat or fish with vegetables
5. Rose answered the letter ________.
[ ]
A. on New Year's Day
B. at the Lantern Festival
C. on New Year's Eve
D. on Christmas Day
判断题