Change these sentences into passive voice

1. The flood happened early this morning in Quang Binh Province and now the government is sending aid to the flood victims.

______________________________________________________ .

2. The earthquake struck the city and destroyed completely thousands of buildings and houses.

______________________________________________________ .

3. Our government has declared a state of emergency following the earthquake.

______________________________________________________ .

4. When the typhoon happened, they had moved most of people there to safe areas.

______________________________________________________ .

5. The storm destroyed his house completely and now he is living with his friends.

______________________________________________________ .

 Choose the correct word A, B, C or D for each gap to complete the following passage.

   More than a billion people all over the world are (1) ………….. the threat of desert expansion, but few of them are aware that they themselves cause it and are also its (2) ……………. People cut (3) ……………. Trees for fuel and farmland. Their herds eat (4) ………… the grass covering valley floors and hillsides. The climate and soil quality, therefore, are affected and forests are turned into (5) ……….

  In some places, many people had to leave their homes when their wells became dry and sand buried their house and crops. Therefore, governments in nearby areas  have and local people (6) ………….. trees and banned burning firewood for fuel. Many other techniques have been (7) ………… For example, in Iran, a thin covering of oil was poured on sandy areas to retain (8) ………….. for planting trees, but this method may harm the environment. Other countries built long canals or pipelines (9) ………….. water to desert areas.

  Unless people find more (10) …………… methods, their homes and land will be lost. The fight against the desert is continuing.

 Read the text and then choose the best answer A, B, C or D.

   Two of the most dangerous storms which affect America are hurricanes and tornadoes. They are very much feared by anyone who may live in the path of their destruction.

   Every year homes are destroyed by their fury and often lives are lost. Most people who live near the coast are forced to evacuate their homes and to move to safer areas until the storm passes. Floods are caused along the coasts by both the heavy rain and a storm tide that is considerably above normal water level. The high winds, coastal flooding and heavy rains associated with a hurricane cause enormous damage.

   Hurricanes usually develop between July and October. Once they hit land they carry tremendous power with driving rain and wind.

   Tornadoes are violent low-pressured storms. These storms occur most often during the summer months and are noticeable by their strong wind and lack of rain. The sky turns black as dust is sucked up into the air. Tornadoes are capable of lifting quite heavy objects from the ground. They can pick up trees and cars right into the air and even uplift heavier objects such as homes and railway cars.

   Both hurricanes and tornadoes cause millions of dollars worth of damage to life and property every year. Today they can be predicted more easily than in the past, but they cannot be stopped or ignored.

1. What are two of the most dangerous storms which affect America?

A. Thunderstorms and hurricanes.

B. Typhoons and thunderstorms.

C. Hurricanes and tornadoes

D. Hurricanes and typhoons.

2. At which part of the year do hurricanes usually develop?

A. July and August only

B. Between July and October

C. From the seventh to the ninth month

D. All the year round

3. What is the major similarity of both a hurricane and a tornado?

A. They cover only a small area

B. They have either wind or speed

C. They are not accompanied by rain

D. They can cause great damage

4. Which of the following is true of tornadoes and hurricanes?

A. They cannot be predicted with accuracy

B. They are easier to control today than in the past

C. Tornadoes are more dangerous than hurricanes

D. They can be predicted today with greater accuracy

5. Which of the following was not mentioned in the article?

A. The damage caused by hurricanes and tornadoes

B. The tremendous power of these storms

C. The number of people killed each year by these storms

D. The time of year when they are most likely to strike

 Fill each blank with a word/ phrase in the box.

1. When the earthquake happened, all the building in this area were completely _______________ .

2. Fortunately many people were warned of the danger and they had taken ____________________  before the earthquake happened.

3. The ____  has raged since early morning, many trees and animals have been burnt up.

4. All people in the village rushed into the public shelters as soon as the                    erupted.

5. Several people were going along when suddenly there was a                          came crashing down the hillside and blocked the road in front of them.

6. Tankers full of water were sent, but it was too late to save many of the animals and crops there. The ____________  made the whole are like a vast desert.

7. When the _____  happened last year, the river overflowed in several places and huge areas of farming were several meters under water. Boats were being used to rescue people in nearby villages.

8. The _____  swept onwards, covering everything in its path. The travellers had to get off their camels and lie down until it had eventually passed.

9. Suddenly the ground shook beneath our feet and tall buildings opposite my college began to sway. I immediately realized that it was an                     .

10. The ____  already strengthened considerably and the sea was very rough. As a result, ferries across the harbor stopped sailing and all large ships put out to the sea.

 Choose the correct option for each gap in the sentences

1. Typhoons are severe tropical storms. They sometimes happen in my ________________________________________________________

2. When a typhoon happened, many houses and roads ______  destroyed or flooded.

3. Last year, there was a big typhoon in my area. It caused extensive damage to our ___________________________

4. The government sent rescue food, drink and medical supplies to ________________________________________________________  homes.

5. All people who were without homes in the flood were provide with ________________________________________________________  accommodation.

6. When the earthquake happened, almost people in this building managed to run ________________________________________________________  of it.

7. ________ is the most common natural disaster in your country? Snowstorms.

8. The ______  buried the whole village while people were sleeping in their houses.

9. ___  workers were sent to the area immediately but no villager was survived when the landslide happened.

10. What ___  we do to prevent these natural disasters?

 Cho AABC vuông tại A có AB = 7,5cm, BC = 12,5cm
a) Tính diện tích tam giác ABC
b) Lấy điểm M trên cạnh AB sao cho AM : MB = 1: 2. Từ M kẻ đường thắng song song với BC cắt trung tuyến AF tại E và cắt cạnh AC tại N. Chứng minh E là trung điểm của MN.
c) Gọi G, H, I thứ tự là trung điểm của MC, NB, EF. Chứng minh G, H, I thẳng hàng và tính diện tích △AIHF

Xuất xứ, thể loại, PTBĐ, đại ý, bố cục