ACCORDING TO THE PASSAGE, IT IS THOUGHT THAT MOST OF THE PEOPLE WHO BEGAN CULTIVATING PLANTS WERE (A) MEDICAL WORKERS (B) LEADERS OF CEREMONIES (C) WOMEN (D) HUNTERS PART 2

8. According to the passage, it is thought that most of the people who began cultivating plants were

(A) medical workers

(B) leaders of ceremonies

(C) women

(D) hunters

Part 2: Read the following passage and choose the letter A, B, C or D to indicate the word or phrase that

best fits each of the numbered blanks. (10pts) Ms Đức

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires

can change ecosystems. Some changes ____(1)___ ecosystems. If there is too little rainfall, plants will not

have enough water to live. If a kind of plant dies off, the animals____(2)___feed on it may also die or move

away. Some changes are good for ecosystems. Some pine forests need fires for the pine trees to reproduce.

The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds ____(3)___.

Polluting the air, soil, and water can harm ecosystems. Building dams on rivers for electric power and

irrigation can harm ecosystems ____(4)___ the rivers. Bulldozing wetlands and cutting down forests destroy

ecosystems. Ecologists are working with companies and governments to find better ways of ___(5)____

fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other

products for people without causing harm to ecosystems.