I. Read the passage and answer the following question:

Water pollution is the contamination of bodies of water such as lakes, rivers, oceans, and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution.
Water pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution.
Water pollution can have dramatic effects.

1. What are point source pollutants?

2. What are the non-point source pollution

II/choose the best answer A,B,C or D to complete the sentences:

1. I intended ......to New York next month

A.flew B. to fly C. fly D.flying

2. Earth.........by the gravity of the sun and orbits around it

A. is held B.hold C.to hold D.holding

III/ Circle the word with a different stress pattern from the other:

1. A.classic B.nature C.degree D.debris

2. A.dramatic B.tornado C.historic D.injury

3. A.communicative B.competitive C.opportunity D.unfortunate

4. A.authority B.impolite C.unhealthy D.repetitive