Trắc nghiệm Tiếng Anh 11 Unit 4 (Smart World có đáp án): Reading & Writing

GLOBAL WARMING

    Global warming is the phenomenon of a gradual increase of the Earth’s average temperature due to the rise of greenhouse gases in the atmosphere. These gases like carbon dioxide and methane escape into the air and act like a warm blanket over the Earth to prevent some of the heat from escaping into space, which keeps our planet warm enough for plants, animals and humans to live in. This is known as the greenhouse effect. However, there’s a problem nowadays: people all over the world are adding extra carbon dioxide to the atmosphere by burning fossil fuels like oil and coal for our everyday and industrial activities.

    Global warming leads to some serious changes on Earth. For example, the sea levels are rising. Every year, the sea rises another 0.13 inches (3.2 mm). This is mostly due to a combination of melted water from glaciers and ice sheets and thermal expansion of seawater as it warms. The rising sea levels have a profound impact on our oceans and marine life. They are changing the distribution of fish stocks and their food. The rising sea levels can also have devastating effects on coastal habitats: further inland with destructive erosion, wetland flooding, soil contamination with salt and habitat loss for fish, birds and plants.

    Using less fossil fuel to limit the amount of carbon released to the air is considered as the best way to slow down global warming. However, it is hard to do as our modern life mainly relies on non-renewable energy. Therefore, by driving less, turning down the heat and air conditioning, and using more solar, wind and hydroelectric power, we can all reduce greenhouse gases and help fight global warming.

GLOBAL WARMING

    Global warming is the phenomenon of a gradual increase of the Earth’s average temperature due to the rise of greenhouse gases in the atmosphere. These gases like carbon dioxide and methane escape into the air and act like a warm blanket over the Earth to prevent some of the heat from escaping into space, which keeps our planet warm enough for plants, animals and humans to live in. This is known as the greenhouse effect. However, there’s a problem nowadays: people all over the world are adding extra carbon dioxide to the atmosphere by burning fossil fuels like oil and coal for our everyday and industrial activities.

    Global warming leads to some serious changes on Earth. For example, the sea levels are rising. Every year, the sea rises another 0.13 inches (3.2 mm). This is mostly due to a combination of melted water from glaciers and ice sheets and thermal expansion of seawater as it warms. The rising sea levels have a profound impact on our oceans and marine life. They are changing the distribution of fish stocks and their food. The rising sea levels can also have devastating effects on coastal habitats: further inland with destructive erosion, wetland flooding, soil contamination with salt and habitat loss for fish, birds and plants.

    Using less fossil fuel to limit the amount of carbon released to the air is considered as the best way to slow down global warming. However, it is hard to do as our modern life mainly relies on non-renewable energy. Therefore, by driving less, turning down the heat and air conditioning, and using more solar, wind and hydroelectric power, we can all reduce greenhouse gases and help fight global warming.

GLOBAL WARMING

    Global warming is the phenomenon of a gradual increase of the Earth’s average temperature due to the rise of greenhouse gases in the atmosphere. These gases like carbon dioxide and methane escape into the air and act like a warm blanket over the Earth to prevent some of the heat from escaping into space, which keeps our planet warm enough for plants, animals and humans to live in. This is known as the greenhouse effect. However, there’s a problem nowadays: people all over the world are adding extra carbon dioxide to the atmosphere by burning fossil fuels like oil and coal for our everyday and industrial activities.

    Global warming leads to some serious changes on Earth. For example, the sea levels are rising. Every year, the sea rises another 0.13 inches (3.2 mm). This is mostly due to a combination of melted water from glaciers and ice sheets and thermal expansion of seawater as it warms. The rising sea levels have a profound impact on our oceans and marine life. They are changing the distribution of fish stocks and their food. The rising sea levels can also have devastating effects on coastal habitats: further inland with destructive erosion, wetland flooding, soil contamination with salt and habitat loss for fish, birds and plants.

    Using less fossil fuel to limit the amount of carbon released to the air is considered as the best way to slow down global warming. However, it is hard to do as our modern life mainly relies on non-renewable energy. Therefore, by driving less, turning down the heat and air conditioning, and using more solar, wind and hydroelectric power, we can all reduce greenhouse gases and help fight global warming.

GLOBAL WARMING

    Global warming is the phenomenon of a gradual increase of the Earth’s average temperature due to the rise of greenhouse gases in the atmosphere. These gases like carbon dioxide and methane escape into the air and act like a warm blanket over the Earth to prevent some of the heat from escaping into space, which keeps our planet warm enough for plants, animals and humans to live in. This is known as the greenhouse effect. However, there’s a problem nowadays: people all over the world are adding extra carbon dioxide to the atmosphere by burning fossil fuels like oil and coal for our everyday and industrial activities.

    Global warming leads to some serious changes on Earth. For example, the sea levels are rising. Every year, the sea rises another 0.13 inches (3.2 mm). This is mostly due to a combination of melted water from glaciers and ice sheets and thermal expansion of seawater as it warms. The rising sea levels have a profound impact on our oceans and marine life. They are changing the distribution of fish stocks and their food. The rising sea levels can also have devastating effects on coastal habitats: further inland with destructive erosion, wetland flooding, soil contamination with salt and habitat loss for fish, birds and plants.

    Using less fossil fuel to limit the amount of carbon released to the air is considered as the best way to slow down global warming. However, it is hard to do as our modern life mainly relies on non-renewable energy. Therefore, by driving less, turning down the heat and air conditioning, and using more solar, wind and hydroelectric power, we can all reduce greenhouse gases and help fight global warming.

GLOBAL WARMING

    Global warming is the phenomenon of a gradual increase of the Earth’s average temperature due to the rise of greenhouse gases in the atmosphere. These gases like carbon dioxide and methane escape into the air and act like a warm blanket over the Earth to prevent some of the heat from escaping into space, which keeps our planet warm enough for plants, animals and humans to live in. This is known as the greenhouse effect. However, there’s a problem nowadays: people all over the world are adding extra carbon dioxide to the atmosphere by burning fossil fuels like oil and coal for our everyday and industrial activities.

    Global warming leads to some serious changes on Earth. For example, the sea levels are rising. Every year, the sea rises another 0.13 inches (3.2 mm). This is mostly due to a combination of melted water from glaciers and ice sheets and thermal expansion of seawater as it warms. The rising sea levels have a profound impact on our oceans and marine life. They are changing the distribution of fish stocks and their food. The rising sea levels can also have devastating effects on coastal habitats: further inland with destructive erosion, wetland flooding, soil contamination with salt and habitat loss for fish, birds and plants.

    Using less fossil fuel to limit the amount of carbon released to the air is considered as the best way to slow down global warming. However, it is hard to do as our modern life mainly relies on non-renewable energy. Therefore, by driving less, turning down the heat and air conditioning, and using more solar, wind and hydroelectric power, we can all reduce greenhouse gases and help fight global warming.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.

VIETNAM’S CORAL REEFS

    Coral reefs are one of Vietnam’s unique marine ecosystems, with extremely high levels of biodiversity and amazing scenery. Coral reefs in Vietnam are scattered from the North to the South with a total area of over 1,100 km². Unfortunately, 96 percent of Vietnam’s coral reefs have (6) ______ badly affected by human activities, and 75 percent of those face extinction. In recent years, fishermen have been using upgraded nets, which (7) ______ severe damage to coastal reefs. Other coastal cities and provinces, such as Khánh Hòa and Bà Rịa – Vũng Tàu have faced the illegal wildlife (8) ______ of marine animals. Local people have used both simple tools and heavy equipment to catch rare marine animals and damaged the coral reefs by accident.

    Therefore, the government has made a lot of efforts (9) ______ protect coral reefs’ ecosystems. Coral reef exploitation and destructive fishing activities are now prohibited across the sea of Vietnam. In addition, 16 marine protected areas have been set up (10) ______ 2015 in order to maintain marine biodiversity, restore the ocean as well as create a foundation for sustainable development.