单词拼写（共10小题,每小题1分,满分10分）
Jack is an intelligent pupil, but he lacks __________(动力) .
It really i________(使烦躁)me when he doesn’t help around the house.
At the meeting they __________(低语) to each other in order not to be heard.
Thousands of people blocked the street, __________(抗议)，against the new legislation.
Fearing further attacks, most of the population had ________(放弃) the city.
In the absence of the manager, I shall be in c________ of the company.
I like the job so much that I didn’t h________about taking it.
Some scientists p______that the Earth’s temperature will rise by 5°C over the next 20years.
He was d________(沮丧) because he hadn’t passed his maths examination.
The black mountains c________sharply with the white snow.