31. What/How about having a rest? /(having) a try? 休息一会儿/尝试一下怎么样？
32. Why not make friends with him? 何不跟他交个朋友？
33. It's better to make up your mind. 你最好下定决心。
It's best to wear silk clothes in summer. 在夏季最好穿丝绸衣服。
34. The river is 50 kilometres long and two metres deep. 这条河有50公里长两米深。
35. Your cake is as delicious as mine. 你的蛋糕和我的蛋糕一样好吃。
He doesn't run so / as fast as you. 他不如我跑得快。
36. He often helps me with my Chinese. 他经常帮助我学习语文（或中文）。
He often helps me do the homework. 他经常帮助我做家庭作业。
37. What do you think of the novel? 你认为这本小说怎么样？（两种方法）
How do you like the novel?
38. He likes cooking very much. So do I. / So does he. 他非常喜欢做饭。我也一样。/他也一样。
He is American. So is Jim. 他是美国人。吉姆也是。
39. Don't forget to post the letter on your way home. 别忘了在你回家的路上把这封信寄了。
Did you remember to send your mother a birthday card last week?
上星期你没有忘记给你母亲寄生日卡吧？
I'll never forget seeing the girl for the first time. 我将终生难忘初次见到那位姑娘的情景。
40. Forests help to keep water from running away. 森林有助于防止水分流失。
The Great Green Wall will stop the sand from moving towards the rich farmland.
绿色长城将阻挡沙子侵蚀肥沃的农田。
41. I prefer to do shopping on the Internet rather than go to the shop. 比起去商店购物，我更喜欢网上购物。
42. He has nothing to do with the club. 他和那家俱乐部没有关系。
43. Tom made such a noise that his sister told him to be quiet. 汤姆太吵闹了以至他姐姐叫他安静点。
His idea was such a good one that we all agreed to use it.他的想法是如此的好以至我们一致同意采纳它。
44. We are proud of what you've done. 我们为你所做的感到骄傲。
We are proud of out city. 我们为我们的城市感到自豪。
45. He was soon able to sit up and read. 他很快就能坐起来看书了。