這個句子我使用了連接詞THEREFORE，後面又有BECAU

Question

Scientists are discovering that animals can think and communicate their thoughts.Therefore, scientists have worked with gorillas and chimpanzees to study animal intelligence, because they are close relatives of humans.

這個句子我使用了連接詞THEREFORE，後面又有BECAUSE，這樣合乎文法嘛?
如果不請幫我修改，感恩

Answer 1

觀念澄清: therefore 是副詞, 非連接詞.
所以您這樣寫是可以的. 而且可以換成意思相同的其他副詞或片語:
consequently
accordingly
as a result
hence
thus
另外, 比較下列兩句:
I got up late , therefore I missed the bus. (X)
I got up late ; therefore I missed the bus. (O)

I got up late , and therefore I missed the bus. (O)


2007-01-01 14:37:15 補充：
如果要改:
Scientists have discovered that animals can both think and communicate.
Therefore, scientists have been working with gorillas and chimpanzees to study animal intelligence, because they are closely related to humans.

Answer 2

1. 基本上可用,但不常. 如果不放心,可以用 "As a result" 才代替.

我建議改成以下句子:
Scientists discover that animals not only can communicate to their own kind, but also can express their emotions and thinkings to different species.
As a result, scientists have worked on gorillas and chimpanzees to study animal intelligence, because those two kind of animals are close species to humanbeings.