1、B1U5 Developing ideasLanguage points1. Many animals move from one place to another at certain times of the year. 从一个地方到另一个地方从一个地方到另一个地方adj.特定的特定的 2. They migrate to find food, seek a partner, or in search of warmer weather.seek=in serach ofseek v寻找，寻求寻找，寻求seek for sb./sth.seek to do sth. 试图试图/设法做某事设
2、法做某事para.1para.13. Somehow they manage to travel around 4,000 kilometres south and find their way to California or Mexico.manage v. 管理，经营管理，经营; ; 安排安排( (时间、金钱等时间、金钱等); ); 设法做到设法做到manage to do sth. 设法做某事设法做某事manager n. 经理经理management n. 管理管理para.24. A team of scientists led by Professor Eli Shlizerma
3、n at the University of Washington has now found the answer. They have found out that the monarch is able to tell the time of day.find 强调强调“找找”的结果的结果find V.S. find outfind out 强调强调“找找”的过程的过程（着重表示通过理解、分析、思考、询问等（着重表示通过理解、分析、思考、询问等“弄清楚弄清楚”“查查明明”一件事情，其后的宾语常常是某个情况、事实）一件事情，其后的宾语常常是某个情况、事实）para.35. It uses
4、its eyes to measure the position of the sun. para.3 v. 测量测量，评估评估; ; n.措施；方法；尺度措施；方法；尺度measure sth. by sth.用某物来衡量某物用某物来衡量某物take measures/actions to do sth.采取措施做某事采取措施做某事 n.位置；职位；地位；姿势；状况；处境位置；职位；地位；姿势；状况；处境6. These two pieces of information the time of day and the point where the sun is in the sky al
5、low the butterfly to determine the way to go. para.3 v. 测定；确定；决定测定；确定；决定determine to do sth.决定做某事决定做某事determination n.决心决心, ,决定决定be determined to do sth.determined adj.坚定的，有决心的坚定的，有决心的7. Eventually, it manages to reach the places where it will spend the winter. para.38. The solution to the mystery o
6、f the monarchs amazing ability comes at a time when it is in serious trouble. para.4“.“.的方法的方法”相关表达相关表达the solution to (doing) sth.the way to do sth./the way of doing sth.means of doing sth.method(s) of doing sth.an/the approach to (doing) sth.amazed adj.be amazed at/bybe amazed to do sth.amazement
7、n.to ones amazementin amazement常接后接介词常接后接介词to的名词的名词key, answer, road, attitude, bridege, visit .9. Its population has crashed by as much as 90 per cent in the last few years. para.4 crash v. 狂跌，暴跌狂跌，暴跌 vi.& vt.(车车)碰撞；碰撞；(飞机飞机)坠毁坠毁decline/decrease/go up 减少；下降减少；下降rise/increase/go down 增加；上升增加；上升10. S
8、adly, human activity is the main reason why the number of monarch butterflies is falling. para.411. In many of the places where the butterfly can be found, people are destroying the natural environment. para.412. They cut down trees and use chemicals that kill the plants that monarch caterpillars ea
9、t. para.4 n.化学品化学品 adj.化学的化学的cut in 插话插话cut down 割掉；切断割掉；切断13. The research on the monarchs behaviour has however led to a greater awareness of this creature. para.5导致：导致：result in; contribute to; cause; bring about14. People have been working together to record its migration and make sure that ther
10、e are enough plants for it to feed on. para.5以以.为食为食15. If this works, there may come a time when the number of monarch butterflies increases once again. para.516. The more we know about this lovely creature, the greater the chance it will survive and keep its place in the natural world for a long time to come. para.5v. 活下来；幸存活下来；幸存 survive sth. 在在.中活下来（常接中活下来（常接earthquake,flood）survive on . 仅靠仅靠.维持生计；靠维持生计；靠.活下来活下来survive sb. by . 比某人多活比某人多活.survival n.幸存；残存物幸存；残存物survivor n.生还者；残存者；幸存者生还者；残存者；幸存者Thank you!
