Unit 3 Section B Grammar and usage教学课件- 高中英语牛津译林版(2020)选择性必修第一册.pptx

Section B,Grammar and usage,Vocabulary,1. wonderwonder about sth. 想知道，想弄明白wonder at. . . 对感到惊讶wonder+从句 想知道I wonder if/whether 我不知道是否（表示一种礼貌的请求或提问）in wonder 吃惊地Its a wonder (that). . . 莫名其妙的是；令人惊奇的是(Its) no wonder (that) . . . 不足为奇，并不奇怪练习：For thousands of years people have been wondering _ our future.,about,2. observeobserve sb. do sth. 看到某人做了某事observe sb. doing sth. 看到某人正在做某事observe sth. done看到某事被做observation n. 观测，观察；遵守be under observation 在观察中；被监视中练习：Art classes help develop childrens power of _ (observe).,observation,3. reducebe reduced to 降低到；沦落为be reduced by 降低了reduce . from . to . 把从减少到练习：It was foggy so the driver had to reduce speed _ forty kilometres an hour.,to,Leading in,As I wandered in the National Gallery, I was amazed to see all the paintings.I wondered at the skill of the artists, their use of colour and how they played with light and shade. I observed the brushwork they used to enhance their works.I enjoyed the whole experience-to be able to bathe my senses in this palace of human creativity. It was surprising then to see so many people viewing important and precious artworks through their smartphones. It might sound shocking, but they seemed more interested in taking photos and recording videos of artworks than appreciating them with their own eyes. How was it possible, I wondered, to truly appreciate the human touch of a great painting when it was reduced to a few million pixels? Looking at artworks through smartphones, I thought, was like trying to appreciate the countryside without being able to hear the birds sing, feel the breeze against my face or smell the flowers. Moving slowly through the National Gallery, I was determined to keep my smartphone in my bag and appreciate each individual painting with the best camera in the world: my own eyes.,Working out the rules,