GWD 17-33

[Jackson0317]

Doctors hope that one day the body’s master cells, called stem cells, can be directed to grow in organs or tissues appropriate for transplant, use them to test drugs and potentially toxic chemicals, and may study them to gain insight into basic human biology.

A. transplant, use them to test drugs and potentially toxic chemicals, and may study them
B. transplant, using them to test drugs and potentially toxic chemicals, and studied
C. transplant, used to test drugs and potentially toxic chemicals, and studied
D. a transplant, use them for testing drugs and potentially toxic chemicals, and for studying
E. a transplant, used to test drugs and potentially toxic chemicals, and may study them

Ans: C

我只看B和C因為平衡 (can be directed.... and studied). 只小check一下,B錯是因為them代的不清楚嗎? 我本人是覺得C也不清楚因為used to test... we need to ask the question "use what to test?" 請各位補充.

[cimim]

B 應該就是them的問題 前面太多複數名詞了 優先代替原提主詞 是doctors 可是依句意應該是要代替cells

C 的話應該沒有問題 他算是三者的平衡 一致性 省略can be , 前面是被動 後面一樣被動

Doctors hope that one day the body’s master cells, called stem cells, can be directed to grow in organs or tissues appropriate for transplant, (can be)used to test drugs and potentially toxic chemicals, and (can be)studied to gain insight into basic human biology.

[lunar916]

B) can be directed.., using..., and studied

C) can be directed.., used to..., and studied

b的using錯了

[Jackson0317]

了解.... thank you

[ggethan]

請問一下(d)(e)的a transplant和(a)(b)(c)的trsansplant 有什麼差

這邊a不能加嗎

還有hope 跟may 會不會redundancy

有人知道回一下吧^^

[dibert8]

transplant 不加冠詞是抽象名詞"移植";加冠詞是具體名詞"移植的器官"

看不出 may 和 hope 意思重疊; (A) 不選,因為 cells 不會 use, study