●●●●● ●●●● ●●0 Try to speak more ●●● ●●●● Notes dream about/of ( sth/doing sth): a experience sth in a dream b. imagine sth work on:从事,致力于,作…工作 e.g. The novelist is working on a new book Substitute sb/sth (for sb/sth): a v put or use(a person or thing) in place of another b n one that takes the place of another; a replacement e.g. We must substitute a new chair for the broken one Use plastics as a substitute for steel come across: to meet sb or find sth/sb by chance e.g. We ve just come across an old friend we havent seen or agesTry to speak more ⚫ Notes: ⚫ dream about/of (sth/doing sth): a. experience sth in a dream b. imagine sth ⚫ work on: 从事…,致力于…,作…工作 e.g. The novelist is working on a new book. ⚫ Substitute sb/sth (for sb/sth): a. v. put or use (a person or thing) in place of another b. n. one that takes the place of another; a replacement e.g. We must substitute a new chair for the broken one. Use plastics as a substitute for steel. ⚫ come across: to meet sb or find sth/sb by chance e.g. We’ve just come across an old friend we haven’t seen for ages