1 . 选词填空

focus on             hear from               in the lead             a wide range of in trouble             in surprise             (be) busy with        aim to leave…behind       in one’s thirties       apply ... to ....        even though

1. I________dinner the other day in the kitchen when my little son came running in, out of breath.
2. There are dozens of summer camps, many of which are attached to universities,________ prepare elite math students.
3. The workers still kept on working in the river________the water was icy cold.
4. By opening a novel, I can________all my worries and get lost in a wonderful and mysterious world where I am a new character.
5. When I was studying alone abroad, I badly looked forward to________my family, especially when something went wrong.
6. With modern technology________agriculture, the farmers have had their productivity and work efficiency greatly increased.
7. As we move into the era of broadband (宽带),________ e-commerce services have been available.
8. ________ your business, or you cannot finish your project as scheduled.
9. America, the only superpower in the world, is far________among all in research, design, and production of nuclear weapons.
10. Teachers________are usually at their best, relatively experienced, and full of energy and ambition.