Một ô tô 3 giờ đầu mỗi giờ đi được 65 km, 2 giờ sau mỗi giờ đi được 70km. Hỏi trung bình mỗi giờ ô tô đó đi được bao nhiêu km?

I. Choose the best answer to complete each of the following sentences.

1. Air pollution has many effects_________ the environment and living organisms.

A. in              B. of          C. for          D. on

2. The volcano has erupted approximately once every ten years_________ 1970.

A. since              B. in         C. from           D. for

3. After a severe storm, there is often_________ along the shore that will need to be removed.

A. waste       B. debris              C. lava          D. junk

4. In the 1980s, acid rain_________ widespread damage to forests in the areas.

A. made of              B. resulted in      C. led for           D. caused by

5. _________  plastic takes so long to break down, it pollutes the land and water.

A. Even though       B. While       C. Since        D. Because of

6. If I had the chance to take part in an International summer camp, I_________ very excited.

A. am         B. was           C. will be             D. would be

7. _________ do earthquakes usually last? - Less than one minute.

A. How strong          B. How long         C. How often            D. How far

8. Niagara Falls is a great natural_________ on the border of the USA and Canada.

A. castle         B. loch        C. spectacle         D. Symbol

9.  The 2010 Haiti earthquake was the most_________ natural disaster in the history of this country.

A. destructive        B. permanent            C. unique              D. awesome

10. The river water is severely polluted, mostly________ the dumping of raw sewage.

A. due to        B. lead to              C. because                 D. so

11. Sudden changes in water temperature can ________ mass killings of fish, plants, or amphibians.

A. come up      B. result in       C. dump into      D. thank to

12. Water pollution________ the death of all forms of life in the water bodies.

A. occurs         B. results of           C. creates          D. leads to

13. ________ plastic takes so long to break down, it pollutes the land and ocean.

A. Because            B. Due to           C. Even if                D. Although

14. Many flights were cancelled ________ the smoke from forest fires.

A. so          B. because          C. because of            D. result in

15. ________the garbage dump smells terrible, no one lives around there.

A. Because of         B. As       C. As a result of         D. Even though

16. The inhabitants of Scotland are called__________.

A. Scotlanders B. Scotlish C. Scots D. Scotchs

17. Her English accent is so good that she is thought of as a__________ speakers.

A. natural B. official C. non-native D. native

18. Loch Ness is a__________ in the Highlands of Scotland.

A. person B. lake C. valley D. river

19. __________ having two official languages, Canada has the third largest English-speaking

population.

A. Despite B. Because C. Due to D. Even though

20. The Capital of Canada is__________.

A. Edinburgh B. Ottawa C. Cardiff D. Belfast

21. Susan looks forward__________ a music camp, where she can sing and dance.

A. to attend B. to attending C. to be attended D. be attending

22. Five skiers are missing after the_________ in the Alps.

A. drought B. landslide C. flood D. avalanche

23. After the_________ all the houses were left under water.

A. flood B. tornado C. typhoon D. mudslide

24. It took firefighters five days to put out the_________.

A. hurricane B. forest fire C. tsunami D. drought

25. A period of 3- 4 months without rain will cause a severe_________.

A. typhoon B. earthquake C. drought D. flood

 II. Circle the word with a different stress pattern from the others (1.0pt)

    21. A. paradise      B. exhibit      C. invention       D. excursion

    22. A. medical      B. natural      C. kangaroo       D. visitor

    23. A. volcanic      B. refugee      C. contaminate       D. tsunami

    24. A. evacuate       B. emergency      C. biography       D. economic

    25. A. rescue      B. damage      C. collapse       D. illustrate

A.Combine the sentences in each pair into a new sentence that shows a cause-ffect relationship. Use the words in brackets

1. Plastic bags are a major source of waste. We should not throw plastic bags everywhere (so)

2. The food í contaminated. People's health is poor ( results in)

B. Rewrite the sentences in passive voice

1. A magnitude 7.1 earthquake shook Southern California on Friday.

2. They will provide temporary housing to  earthquake victims as soon as possible.

3. Res cue teams have saved hundreds of people from floods in Metro Manila.

4. An average of 20 typhoons hit the country every year.

5. A massive landslide buried dozens of homes near a Central Philippine mountain. 

6. They are repairing roads and bridges damaged by the hurricane.

7. Across the northwest Florida coast, people were clearing storm debris.

8. Authorities have lifted a tsunami warning after s strong earthquake.

9. Submarine volcanic eruptions can cause tsunamis.

10. Will the government send troops to plooded regions?

C. Write the second sentence so that it has the same meaning to the first one

1. Pollution affects the environment in many ways

- The environment _________________________

2. It;s impossible for us to predict when the earthquake will happen