【人教课标选修9】Unit 2 Sailing the oceans

D to tell the time

2. Why are speed and time important in working out the longitude of a ship ?

3. Why is the position of the sun and various stars useful for working out latitude ?

4. Suppose you were a sea captain aiming to sail round Africa Discuss in groups.

  (1) what skills would you seek in your sailors ?

(2) what problems would you anticipate for this journey ?

II Learning about language

Do exercises 1 . 2 and 3

Exerise1  Replace the words underlined by ones of similar meaning form the reading passage .

1.       Seeing the dark clouds above him , George hurried for home .

2.       Sailing a boat alone far away form the shore made Flora’s parents worry about her safety .

3.       Clare , would you please put your bicycle next to the others in the shed ?

4.       “Why don’t you plot a more simple rout with the smallest number of spots?” asked Mary .

5.      Setting out on a long journey by sea with unskilled sailors would be dangerous especially if there were no modern navigational instruments .

Exercise2  Find the words form the reading passage that are the opposite of these compound words .

Nowhere  anywhere       download  upload       outward      inward

Reliable  unreliable        seaweed   land flower   shortcoming  strong point

Exercise3:

Complete the following paragraph with the words below .

   precise   outward   nowhere   awkward    reference   seaweed

   accelerate mercy     randomly  voyage      alongside   approximate

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