自我意识是作为_____对自己以及自己与周围事物的关系．尤其是人对自我关系意识。

根据所学到的知识，将下列句子补充完整。   

(1)千里送鹅毛——                            。   

(2)包公审案——                                 。  

(3)                                ，夜静春山空。   

(4)洛阳亲友如相问，                                   。   

(5)                                     ，来的尽管来着；                         又怎样的匆匆呢？……     

    于是——洗手的时候，                                ；吃饭的时候，                              ；默默时，便从凝然的双眼前过去。  

秦始皇修筑长城的目的是[ ]

A．抵御六国残部进攻

B．防御匈奴

C．阻挡风沙

D．显示国威

选词完成对话，可以重复选用。

like,  likes,  don't,  doesn’t

Sandy: What do you like to eat, Mary?

Mary: Well, I 1. ______ salad, but I 2. ______ like broccoli.

Sandy: And your friend, Tom? What does he like to eat?

Mary: He 3. ______oranges and bananas. He 4. ______ like hamburgers.

Bobby: And I really 5. ______ ice cream.

设在防护区处的手、自动转换开关应安装在防护区入口便于操作的部位安装高度为中心点距地面（）；手动启停按钮应安装在防护区入口便于操作的部位安装高度为中心点距地面（）；防护区的声光报警装置的安装应符合设计要求，并应安装牢固，不得倾斜；气体放气指示灯宜安装在防护区入口的正上方。

Deserts are found where there is little rainfall or where rain for a whole year falls in only a few weeks' time. Ten inches of rain may be enough for many plants to survive if the rain is spread throughout the year, If it falls, within one or two months and the rest of the year is dry, those plants may die and a desert may form.   

Sand begins as tiny pieces of rock that get smaller and smaller as wind and weather wear them down. Sand dunes (沙丘) are formed as winds move the sand across the desert. Bit by bit, the dunes grow over the years, always moving with the winds and changing the shape. Most of them are only a few feet tall, but they can grow to be several hundred feet high.

There is, however, much more to a desert than sand. In the deserts of the southwestern United States, cliffs (悬崖) and deep valleys were formed from thick mud that once lay beneath a sea more than millions of years ago. Over the centuries, the water dried up. Wind, sand, rain, heat and cold all wore away at the remaining rocks. The faces of the desert mountains are always changing –-very, very slowly ---as these forces of nature continue to work on the rock.

Most deserts have a surprising variety of life. There are plants, animals and insects that :have adapted to life in the desert. During the heat of the day' a visitor may see very few signs of living things, but as the air begins to cool in the evening, the desert comes to life. As the sun begins to rise again in the sky, the desert once again becomes quiet and lonely.

68. Many plants may survive in deserts when__________________.

A. the rain is spread out in a year      B. the rain falls only in a few weeks

C. there is little rain in a year         D. it is dry all the year round

69. Sand dunes are formed when___________________.

A. sand piles up gradually             B. there is plenty of rain in a year

C. the sea has dried up over the years    D. pieces of rock get smaller

70. The underlined sentence in the third paragraph probably means that in a desert there is____________.

A. too much sand              B. more sand than before

C. nothing except sand          D. something else besides sand

71. It can be learned from the text that in a desert____________.

A. there is no rainfall throughout the year               B. life exists in rough conditions

C. all sand dunes are a few feet high              D. rocks are worn away only by wind and heat