4 . 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.

5 . 在疾病爆发不久之后，全国各地被称为“最美逆行者”的医护人员舍小家为大家，主动投身到了这场没有硝烟的战场中。(volunteer) (汉译英)

6 . Directions: Fill in the blanks with phrases in their proper forms in the box. Each phrase can only be used once. Note that there is one phrase more than you need.

give away；involve ....in；sing the praise of；be relevant to take on；show up；leave behind；refer to

1. The only reason that he _________for his success yesterday was that he always worked hard.
2. By opening a novel, I can ________my burdens and enter a mysterious world where I’m a character.
3. We didn’t expect the professor _____________at the conference.
4. All the people who ___________the accident were questioned by the police.
5. It is generally believed that being an adult involves ___________more responsibilities.
6. On the day after his first performance in London, all the newspapers _______________the new young actor.
7. The millionaire ___________his collections for free, which amazed the whole world.