三、单词拼写(根据中文提示拼写单词)

31. Do you know how                 (古代的) people built the Great Wall?

32. Don't climb the mountain without                 (合适的) equipment.

33. The increasing population is the greatest                 (挑战) of the world today.

34. Even if many difficulties remain, we can                 (克服) them.

35. All around the city, mountains stand in different                 (形状).

36. According to an                  (古代的) Chinese legend, tea was invented by accident.

37. We thought him a very                 (合适)person, and also he enjoys working for us.

38. The increasing population may be one of the greatest                 (挑战) in the world.

39. He has enough courage to                 (克服) the difficulty.

40. Robots will have many different                 (形状) in the future.

41. It was made in                 (古老的) China.

42. I can't find                 (适当的) words to describe her beauty.

43. We should not be afraid of any                 (挑战) outside.

44. You should learn to                 (克服) difficulties yourselves. You will feel proud of it.