二、词汇运用
(A)根据句意和汉语注释,写出单词的正确形式。
1. The newest ____ (高度) of Qomolangma is 8848.86 metres.
2. China's high-speed trains can reach 350 km/h in just ____ (秒).
3. Lin Dan is called "Super Dan" because of his amazing ____ (羽毛球运动) skills.
4. Scientists plan to do a ____ (试验) to see if the new medicine works.
5. Look! So many colorful ____ (气球) are flying high in the sky.
6. (然而), we still went hiking.
(B)根据句意,用后级 -ful 或 -less 改写括号内所给单词。
7. The ____ (care) boy left his umbrella on the school bus this morning.
8. Volunteering at the old people's home is a ____ (meaning) activity for us.
9. Thanks for your ____ (use) advice on how to get along with my classmates.
10. The soup my dad made this morning was ____ (taste) because he forgot to add salt.
11. Lucy is ____ (hope) that she'll get a good grade in the test because she works hard.
12. The little girl felt ____ (help) when she couldn't find her parents in the supermarket.