第Ⅱ卷

第四部分：写作（共两节，满分35分）

第一节：短文改错（共10小题，每小题1分，满分10分）

Last month we bought our two-year-old daughter a little   

dog. There are not many children of her age there we live,   76．        

and we thought a dog would make her less alone. We were   77．        

right. They play together happily all days. Our daughter now      78．        

smiles and laughs a lot more than she used. In a way it            79．        

is like having two children in the house. All of them are          80．        

very untidy, but they cry when they do not get what they   81．        

want. The dog is easy to look after than my daughter.       82．        

He always eats up all his food and we don’t have piles of    83．        

dirty clothes to wash. My wife is also happy because of    84．        

I have given up smoke. The dog doesn’t like the smell.           85．    

如图2—4所示，M是折射率为的半圆形玻璃砖，O为其圆心。一束光沿半径方向进入玻璃砖射到O点，当M绕O点缓慢地沿逆时针旋转时，光线OA跟法线之间的夹角θ₂逐渐           ，光线的强度逐渐          ，角θ₁         θ₃（填：“＞”、“＜”或“＝”），光线OB跟法线之间的夹角θ₃将逐渐           ，光线的强度将逐渐        ，当θ₁ =            时，光线OA完全消失。