Warming up、Pre-reading、Reading、Comprehending10分钟试讲教案

Unit 2 Sailing The

Oceans ---Sailing The Oceans (Warming up、Pre-reading、Reading & Comprehending) Teaching objectives: 1. know the ancient technology for sailing 2. make the Mind Map and use “it” as formal object.

3. raise the awareness of the importance of science and technology Teaching contents: 1.

Learn something about the skills and navigational aids early seamen used while sailing the oceans. 2.

Learn how to use “it” as formal object. and make mind map. Teaching important and difficulties points: 1.

Learn something about the skills and navigational aids early seamen used while

sailing the oceans. 2.

Master how to use “it” as formal object. and make mind map. Teaching methods: Skimming,scanning,summarizing, group wok Teaching preparation: A projector;computer Teaching procedures: StepI:Lead in 1.

G reetings T:Good morning , boys and girls. Ss: Good morning , teacher. 2.

Enjoy a song together T: Do you know The Belt and Road? (suggested answers:The Silk Road Economic Belt and the 21sCentury Maritime Silk Road) StepII:Warming up Show the picture of Zheng He and ask them to talk about him. Zheng He(1405 ---1433),with his treasure fleets , sailed

westwards on voyages of trade and exploration.

StepIII：Pre-reading Name early navigational instruments (suggested answers:Compass /' kʌmpəs/

Astrolabe(星盘) /'æstrəleɪb/ Sextant(六分仪）/'sekstent/ Sea/Nautical Chart（航海图）) StepIV：While reading (Fast reading & Careful reading) 1.

Fast reading Skim the passage in 2 minutes and answer the following questions. 1.The purpose of the passage is to tell us___? A.keep a longitude of the coastline is the first and most useful form of exploration. B.about the skills and navigational aids early seamen used while sailing the oceans. C.the finding of latitude and longitude is a must to plot a ship's position on a map. D. how the early sailors used their skills and simple instruments. 2. what did the voyages of travellers before

the 17th century use to help them navigate? (suggested answers:1.B2.Using nature to help ;Using navigational instruments to help)

2.

Careful reading Task 1. Using nature to help

Celesti

sun

al bodies

Using

seawee

nature

clouds

weathe

sea

Task 2. Finding longitude How many methods are mentioned in this part? (suggested answers:Two methods:knotted rope;compass&maths) Task 3. Finding latitude



Introduce the instruments (suggested answers:The Bearing Circle, The Astrolabe ,The Quadrant , The Sextant) 

Find the working principles of the instrumens. (suggested answers:The Bearing Circle,A seaman would measure the sun’s shadow and compare the height of the sun now

with the position of the 'sun at midday The Astrolabe ,It would tell the position of the ship in relation to the sun and various stars. This gave the seamen the local time and allowed them to find their latitude. The Quadrant , It measured how high stars are above the horizon

using a quarter circle. The Sextant It works by measuring the angle between two fixed objects outside the ship using two mirrors.) 

Find the adjectives of the instruments (suggested answers:The Bearing Circle:correct The Astrolabe ,:earliest

special

awkward

The Quadrant : precise

simplified

easier portable

difficult The Sextant: updated accurate reliable precise easier)

3. Language points

Check: Translate the sentences into English. 1.我认为你最好住这儿。

2.她来帮忙了，我们十分感激。

(suggested answers:1.I think it best that you should stay here. We really appreciate it when she offered to help) StepV:Summary&Team-work(Post reading) Let's create a mind map to summarize the passage we have learnt today.

(Ask students to show in the front of the classroom). Step VI: Homework Write down the story about“Zheng He”

using your own words .Try to use more adjectives and clauses to make your writing as vivid as possible.

(120 words)