第1个回答 2017-10-16
Researchers say 【主谓】additional studies also are needed to confirm whether HRT significantly increases chances that cataracts will form and progress to the point that surgical removal is required.【宾语从句】
宾语从句中:
additional studies also are needed 【主谓】to confirm whether HRT significantly increases chances that cataracts will form and progress to the point that surgical removal is required.【状语】
状语中:to confirm【动词,后面是宾语从句】
whether HRT significantly increases chances 【主谓宾】
that cataracts will form and progress to the point that surgical removal is required.【定语从句】
that surgical removal is required.【定语从句】