It is believed that if a book is ______, it will surely ______ the reader. A. interested; interest B. interesting; be interested C. interested; be interesting D. interesting; interest 答案:D 解析: 前者是作表语,表示“(令人)有趣的”,用interesting,后者是在will后作谓语,用动词原形,表示“使(人)有趣”是interest。如右图所示,过氧化氢(H2O2)在催化剂二氧化锰的作用下,迅速分解放出大量的氧气,下列现象正确的是 ( )A. 气球胀大,红墨水左移 B. 气球缩小,红墨水右移 C. 气球胀大,红墨水右移 D. 气球缩小,红墨水左移