The question set by the teacher was so difficult that the pupils did not know how to tackle it 17. L45)innocent: adj. not guilty of a crime (插入声音文件 innocent) (Nobody would believe that I was innocent. Can you provide any evidence that he was innocent of the crime? (=你能提供证据证明他没有犯这罪吗?) Pattern innocent of 18.(Para. 9)functional: adj. designed to be useful rather than beautiful or attractive (插入图片 functiona These buildings are beautifully designed, not purely functional Note functiona|的反义词为 decorative 19.(Para. 10) peel: V 1. if skin, paper, or paint peels, it comes off, usually in small pieces; lose an outer layer or surface (插入声音文件pel) (The paper was peeling from the wall.) (插入图片peel1) The bark peels off. My skin always peels after Ive been in the sun 2. remove the outer layer from sth ; remove the skin from fruit or vegetables Peel the label from the jar. (=撕下这个瓶罐的标签。 插入图片peel2) 请剥开这只香蕉的皮。 (Please peel this banana.7 The question set by the teacher was so difficult that the pupils did not know how to tackle it. 17. (L45) innocent: adj. not guilty of a crime （插入声音文件 innocent） (=Nobody would believe that I was innocent.) *Can you provide any evidence that he was innocent of the crime? (=你能提供证据证明他没有犯这罪吗?) Pattern: innocent of 18. (Para. 9) functional: adj. designed to be useful rather than beautiful or attractive (插入图片 functional) These buildings are beautifully designed, not purely functional. Note: functional 的反义词为 decorative 19. (Para. 10) peel: v. 1. if skin, paper, or paint peels, it comes off, usually in small pieces; lose an outer layer or surface （插入声音文件 peel） (=The paper was peeling from the wall.) (插入图片 peel 1) The bark peels off. My skin always peels after I’ve been in the sun. 2. remove the outer layer from sth.; remove the skin from fruit or vegetables Peel the label from the jar. (=撕下这个瓶罐的标签。.) (插入图片 peel 2) 请剥开这只香蕉的皮。 (=Please peel this banana.)