1 . 在过去两个小时里，杰克逊一直在观察化学变化，他的确有潜力成为这个领域的杰出人才。(observe)(汉译英)

2 . 从那以后，许多科学家认为我们的行为确实有所影响.
Since then, many scientists have thought that our actions do ________a ________.

3 . 打喷嚏的时候务必用纸巾遮住口鼻。(Do) （汉译英）

4 . 选择合适的短语并用正确的形式填空

be worthy of；consist of；decide on；on behalf of；thanks to；regardless of；in response to

1. After graduating from university in 2021, my sister ________ a career in publishing.
2. I'm very glad to put on a performance here ________ our school.
3. It was all a great success-________ a lot of hard work.
4. A student's education does not only ________ learning academic subjects.
5. A number of the report's findings ________ attention.

5 . 在来这儿之前，他确实从事过厨师工作。
Prior to coming here, he ____________ ____________ as a chef.

6 . 我们确实希望以友好的方式处理这个问题。（强调谓语）（汉译英）

7 . These works of art really do ______ across the centuries as if time itself were nothing.
这些作品穿越几个世纪，出现在我们面前，仿佛时间没有流逝一般。