Section 4 Questions 31-40

Questions 31 and 32

Choose the correct letter, A, B, or C.

31 Bees that help with pollination benefit flowers and

A female plants only.

B pollen.

C fruit trees.

32 Bees produce wax that can be made into candles and

A honey.

B polish.

C pollen.

Questions 33-35

Complete the sentences below.

Write NO MORE THAN TWO WORDS for each answer.

33 Dragonflies eat …………………….. .

34 Insects in summer can be harmful because they can carry such deadly diseases

as malaria, yellow fever, and…………………………

35 Harmful insects may destroy crops, clothes, furniture, and even the………………..

 Questions 36-40

Complete the notes below.

Write NO MORE THAN TWO WORDS for each answer.

HOW TO KILL BAD INSECTS

• Chemical methods

These solutions to insect problems are often not worthwhile

because:

a) They are effective on a 36 ……………………….. .

b) They can bring harm to ………………………… •

c) Insects become ………………………… to the chemicals quickly.

• Biological methods

These methods are 39……………………….. than chemical methods

of eliminating harmful insects.

• Breeding control method

In order to control the breeding of insects, one needs to

understand the insects’ 40 ………………………. .