高中英语 Unit 2Sailing the Oceans文字素材1 新人教版选修9Unit 2 Sailing the oceansPart Two: Teaching ResourcesSection 1: Discourse studies of Sailing the Ocean1. Type of writing and summary of SAILING THE OCEANTypeexpositionSAILING THE OCEANUsing nature to help: Keeping alongside the coastline, using celestial bodies, using wildlife, using the weather, using the seaUsing navigational instruments to help: Finding longitude, Finding latitude2A diagram of SAILING THE OCEANSAILING THE OCEANS（An exposition）Using nature to keep alongside coastline Part 1Using navigational instruments to help Part 2Using celestial bodiesUsing wildlifefinding longitudeUnit 2 Sailing the oceansPart Two: Teaching ResourcesSection 3: Words and expressions from Unit 2Sailing the oceansmercy noun (pl. -ies) 1. U a kind or forgiving attitude towards sb that you have the power to harm or right to punish humanity: to ask / beg / plead for mercy They showed no mercy to their hostages. God have mercy on us. The troops are on a mercy mission (= a journey to help people) in the war zone. 2. C, usually sing. (informal) an event or a situation to be grateful for, usually because it stops sth unpleasant: Its a mercy she wasnt seriously hurt. His death was a mercy (= because he was in great pain.at the mercy of sb/sth not able to stop sb/sth harming you because they have power or control over you: Im not going to put myself at the mercy of the bank. We were at the mercy of the weather. leave sb/sth to the mercy / mercies of sb/sth to leave sb/sth in a situation that may cause them to suffer or to be treated badly: privatized companies left to the mercy of market forces (humorous) Ill leave you to the tender mercies of these ladies! throw yourself on sbs mercy (formal) to put yourself in a situation where you must rely on sb to be kind to you and not harm or punish youlongside prep. 1. next to or at the side of sth: A police car pulled up alongside us. a lifeboat moored alongside the yacht Much of the land alongside the river is below sea level. 2. together with or at the same time as sth/sb: Traditional beliefs still flourish alongside a modern urban lifestyle. exploration noun C, U 1. the act of travelling through a place in order to find out about it or look for sth in it: the exploration of space oil exploration (= searching for oil in the ground)2. an examination of sth in order to find out about it: the books explorations of the human mindaccelerate verb 1. to happen or to make sth happen faster or earlier than expected: v Inflation continues to accelerate. vn Exposure to the sun can accelerate the ageing process.2. v (of a vehicle or person) to start to go faster: The runners accelerated smoothly around the bend. The car accelerated to overtake me.secure adj.HAPPY / CONFIDENT1. feeling happy and confident about yourself or a particular situation: At last they were able to feel secure about the future. She finished the match, secure in the knowledge that she was through to the next round. CERTAIN / SAFE2. likely to continue or be successful for a long time; safe: a secure job / income Its not a very secure way to make a living. The future of the company looks secure. 3. (against / from sth) that cannot be affected or harmed by sth: Information must be stored so that it is secure from accidental deletion.BUILDING / DOOR / ROOM4. guarded and/or made stronger so that it is difficult for people to enter or leave: Check that all windows and doors have been made as secure as possible. a secure unit for child offenders The building is secure against intruders. FIRM5. not likely to move, fall down, etc.; stable: The aerial doesnt look very secure to me. It was difficult to maintain a secure foothold on the ice. (figurative) Our relationship was now on a more secure footing. verbGET STH1. sth (for sb/sth)| sb sth (formal) to obtain or achieve sth, especially when this means using a lot of effort: vn to secure a contract / deal The team managed to secure a place in the finals. She secured 2. 000 votes. The delegation has secured the promise of a ceasefire. vn, vnn He secured a place for himself at law school. He secured himself a place at law school.FASTEN FIRMLY2. vn sth (to sth) to attach or fasten sth firmly: She secured the rope firmly to the back of the car. The tables on board were secured firmly to the floor.PROTECT FROM HARM3. vn sth (against sth) to protect sth so that it is safe and difficult to attack or damage: to secure a property against intruders The windows were secured with locks and bars. (figurative) a savings plan that will secure your childs futureA LOAN4. vn to legally agree to give sb property or goods that are worth the same amount as the money that you have borrowed from them, if you are unable to pay the money back: a loan secured on the houserand