阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

Alice : What do you think of the people in our class ?I think most of them are kind .

Johnson : I think ____,too. But I don't like Mark. He is so self-important. I dislike this kind of  people.

Alice : Mike is fascinating . I'm fond ____people who have something intelligent to say.

Johnson : Carol is fun to be with . I really look forward to ____(hear ) her jokes. What do you think of Tom ?

Alice : He is all right. But I don't like him. .What do you think of him ?

Johnson : I think he is OK. He is very quiet, so ____is hard to know what kind of person he really is.

Alice : I like John ____she is a very interesting girl and crazy about boy bands.

Johnson : Really ? I'm mad on them too. I should get to know her better. Are you ____（interest ) in music ?

Alice : I think that dance music is excellent. I love going to a disco and dancing to the music. I enjoy ____( meet ) new people there .

Johnson : My parents hate dance music . If I play it at home , they always complain. Are your parents ____same?

Alice : My mom ____(hate ) it , but my dad thinks it's OK.  He doesn't mind as ____as I don't play the music too loud .

定义：把一个半圆与抛物线的一部分合成封闭图形，我们把这个封闭图形称为“蛋圆”．如果一条直线与“蛋圆”只有一个交点，那么这条直线叫做“蛋圆”的切线．如图，A，B，C，D分别是“蛋圆”与坐标轴的交点，已知点D的坐标为（0,8），AB为半圆的直径，半圆的圆心M的坐标为（1,0），半圆半径为3．

（1）请你直接写出“蛋圆”抛物线部分的解析式是，自变量的取值范围是；
（2）请你求出过点C的“蛋圆”切线与x轴的交点坐标；
（3）求经过点D的“蛋圆”切线的解析式．

有人说：“如果瓦特早出生一百年，他和他的发明将会一起死亡！”这说明瓦特的发明能够问世并使人类进入“蒸汽时代”，最主要的因素是（   ）