6、hengotonextpair 2.PracticeUsethecorrectformofthewordstofillintheblanks. n. v. adj. infection Infect Infectious examination=exam examine X science/scientist X scientific conclusion conclude X analysis analyse X defeat defeat X value
7、Value(估价,评价) valuable instructor/instruction instruct Instructive(有益的,教育性的) contribution/contributor contribute contributive creation create creative calculation calculate X movement move movable completion