5.
What is worrying Pen about the new expedition?
A.
whether he will still be
fit enough to take part
B.
whether he will be mentally prepared
C.
whether the equipment will work properly in icy conditions
D.
whether the arrangements he
has made will turn out well
6.
When he compares the new expedition to his previous ones, Pen feels
A.
pleased that more people will benefit from it.
B.
uncertain if it will collect information.
C.
doubtful about its long-term usefulness.
D.
relieved that the general public will be more supportive.
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page 7
PART 5
Tea Tree Oil
: Contrary to initial assumptions, tea tree oil is not taken from the sap of the
tree. It is, in fact, derived from the 'fat' of the tree. Because these trees grow in an area of
Australia where climatic conditions vary greatly, they fortify
themselves by storing up
essential nutrients in small nodules found in their leaves and stems. In the past, the leaves
and stems were cut and placed in crude containers of water. Building a fire under the
containers
would heat the water, producing steam,
which made the nodules burst, thus
releasing the oil into the water. Through a primitive system of gravity separation,
the oil
would flow into a collection vat while the water would be released to the ground. The net
result would be pure, unadulterated tea tree oil. The diagram below shows how tea tree oil
was extracted before the introduction of modern techniques.
Choose ONE or TWO words from the passage for each answer
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