.Scientists have reason to believe that trees (2)c
with each other.Not long ago,researches learned some surprising things.First a willow tree attacked(攻擊) in the woods by caterpillars(毛蟲) changed the chemistry of (3)i
leaves and made them taste so terrible that they got tired of the leaves and stopped (4)e
them.Then even more astonishing,the tree sent out a special smell-a signal(信號) causing its neighbors to (5)c
the chemistry of their own leaves and make them (6)l
tasty. Communication,of course,doesn't need to be in words.We can talk to each other by (7)s
,raising our shoulders and moving our hands .We know that birds and (8)a
use a whole vocabulary of songs,sounds and movement.Bees dance the signals,flying in certain patterns that tell other bees (9)w
they can find nectar(花蜜) for honey.So why shouldn't trees have ways(10)o
42.Dear Ming, How are you? I know you study in Nanjing now. Nanjing is an old city with a long history. Has it changed a lot over the years? Could you tell me the changes. I want to visit Nanjing this Summer Vacation. I want to know the history of the city and enjoy the beautiful views. Could you give me some advice? Yours, Shirley注意: 1. 詞數80詞左右,開頭和結尾已經寫好,不計入總詞數; 2. 回復必須包含所有要點,可適當發揮,使全文連貫,通順; 3. 文中不得提及真實的人名、校名等相關信息。 Dear Shirley, Thank you for your email. I'm very happy to help about Nanjing. . I'm looking forward to meeting you soon. Yours, Li Ming