以下是从本单元课文中摘出的原句。试试看，能填上吗？要注意词形变化！

1．Imagine a world without paper!________　________　________ no books, no newspapers, nothing ________　________　________　________．

2．________　________ some ceremonies in which they were used, oracle bones also record historical events, royal activities, information about natural phenomena and farming techniques．

3．People wrote by carving words on ________ strips known ________“inscribed bamboo”or“wooden strips”

4．In the Eastern Han Dynasty students and scholars ________　________　________　________　________ something cheaper and more convenient ________　________　________　________．

5．In the year 105 AD, Cai Lun reported his accomplishment to the emperor and his method ________ soon ________　________ all parts of the country．

6．The first two stages in the development of civilized man were probably ________ invention of ________ primitive weapons and ________ discovery of ________ fire, although nobody knows when he acquired ________ use of ________ latter．(在必要的地方填入冠词)

7．The origin of language is also unclear．________　________ it began very gradually．

8．Agriculture ________　________ violent resistance from the people who lived a moving life on the grassland, but the agricultural way of life became popular in the end ________　________ the physical comforts it provide．

9．There was progress…but neither of these can ________　________　________ in their revolutionary power to ________ things ________ speech and writing and agriculture．

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在1－10的相应位置上。

　　The Internet has become part of young people's life．　　1　　(冠词)report shows that 38％ of students often use the Internet ．Most of them get 　　2　　(use)information on the Internet 　　3　　(连词)use the Internet to help in their studies．But many students don't use it 　　4　　(介词)a good way．Some play games too much, some visit websites 　　5　　(代词)shouldn't look at．So bad things may happen 　　6　　 students spend too much time on the Internet．

　　　　7　　 is important for students to use the Internet properly．Now we have a textbook, 　　8　　 uses many examples to teach students some good ways to use the Internet．It gives useful advice．

　　Some students also make 　　9　　 on the Internet．But if you want to have a face-to-face 　　10　　(meet)with your online friends, let your parents know and meet in a proper place．

动词不定式可以充当________以外的所有成份；不定式作主语或宾语时，常用________形式主语或形式宾语；在see, hear, watch, feel, notice, observe, make, let, have, listen to, look at等词后的补足语中，不定式不带to，但是这些句子如果变成被动结构，就必须带________；动词不定式在介词________，________，________后面时，如果这些介词之前有行为动词do的各种形式，那么，这些介词后的不定式不带to，否则要带to。