场景：Threats to coastal dolphins

题型：填空

参考答案：

31. live in water which is clean

32. Weather: The impact of climate change on coastal dolphins is difficult to ascertain, however predicted sea level rise, temperature and acidification

33. human activities

34. can contribute to population declines

35. Dolphins communicate with whistle-like sounds-colour of fins

36. Researchers want to 研究可以知道relatives. 还可以找到ideal environment

37. In Australia, inshore nets, entanglement in shark nets

38. hunting is not allowed in some areas

39. 研究还有哪些因素 water pollution

40. 因素2the noise disturbances导致dolphins 问题

场景：Treadle pump（农业灌溉的脚踏水泵）

题型：填空

参考答案：

31. 灌溉以前干旱的季节， they goes to cities look paid jobs

32. 他们农耕在 in cool period 灌溉

33. 2006 年的新设备可以造在海边sea

34. plastic tube

35. 待补充

36. diesel fuels

37. 增加了轮子， addition to bamboo filter

Advantage

38. The new one is easy to store and maintenance

39. install

40. Only need two days for training 很容易产生， local生产就可以