句型转换。

1. They have never been to an English-speaking country. (变为一般疑问句)

                 they             been to an English-speaking country?

2. She has been a flight attendant for two years. (对画线部分提问)

                               has she been a flight attendant?

3. His father has been to America twice. (对画线部分提问)

                has his father been to America?

4. Linda is taller than any other girl in her class.(改为同义句)

    Linda is                         girl in her class.

5. I prefer tea to coffee.(改为同义句)

    I prefer to have tea              have coffee.

式①和式②分别表示的是绿色植物体内进行的两种生理活动，请根据此式或图示回答问题：

（1）式①表示的生理活动是______作用，进行的场所是在细胞质的______中．

（2）式②中表示的能量来源是式①中的______．

（3）分析上述图，可以得出的结论是：光合作用强度受______和______的影响．