(共35张PPT)
Unit 4
Space Exploration
教材习题精讲
Reading and Thinking
01
03
04
02
Discovering Useful Structures
Reading for Writing
Assessing Your Progress
Part 01
Reading and Thinking
SPACE: THE FINAL FRONTIER
“Are we alone What’s out there ” Looking up at the stars, people have always wanted to learn more about space, and scientists work hard to find answers. They make vehicles to carry brave people into space to find out the secrets of the universe. __________________________________________
Before the mid-20th century, most people felt travelling into space was an impossible dream. However, some scientists were determined to help humans realise their dream to explore space. _____________________________ On 4 October 1957, the Sputnik 1 satellite was launched by the USSR and successfully orbited around Earth. Afterwards, the USSR focused on sending people into space, and on 12 April 1961,
【课文】
Yuri Gagarin became the first person in the world to go into space. Over eight years later, on 20 July 1969, American astronaut Neil Armstrong stepped onto the moon, famously saying, “That’s one small step for [a] man, one giant leap for mankind.” Following this, many more goals were achieved. For example, America’s NASA space agency launched Voyager 1 on 5 September 1977 to study deep space, and it still transmits data today.
_____________________________ All the astronauts on the USSR’s Soyuz 11 and America’s Challenger died during their missions.
【课文】
These disasters made everyone sad and disappointed, but the desire to explore the universe never died. This is because people believe in the importance of carrying on space exploration despite the huge risks. An example of this ongoing work is the International Space Station. It orbits Earth and has astronauts from different countries on board, providing a continuous human presence in space.
China’s space programme started later than those of Russia and the US, but it has made great progress in a short time. China became the third country in the world to independently send humans into space in 2003, when Yang Liwei successfully orbited Earth in the Shenzhou 5 spacecraft. Then Shenzhou 6 and 7 completed a second manned orbit and the first Chinese spacewalk, followed by the vehicle Jade Rabbit
【课文】
being sent to the moon to study its surface. After that, China launched the Tiangong 2 space lab into space and Tianzhou 1 to dock with it. This signalled one step further in China s plan to establish a space station in the future. More recently, China has sent Chang’e 4 to explore the surface of the far side of the moon to make measurements and observations.
_______________________________ Europe, the US, and China all have plans to further study and explore planets like Mars and Jupiter. Despite the difficulties, scientists hope future discoveries will not only enable us to understand how the universe began, but also help us survive well into the future.
【课文】
(1) Before you read, look at the title and the photos. Discuss these questions in pairs.
【习题】
1. What do you think are the main reasons for space exploration
2. What do you expect to read about in this text
The main reasons for space exploration are to further human exploration and to gather knowledge of the universe.
I expect to read about the future of space travel.
(2) Read the text. Several sentences have been removed from it. Choose the correct sentence (A–D) to fill each gap.
【习题】
SPACE: THE FINAL FRONTIER
“Are we alone What’s out there ” Looking up at the stars, people have always wanted to learn more about space, and scientists work hard to find answers. They make vehicles to carry brave people into space to find out the secrets of the universe. __________________________________________
B
(2) Read the text. Several sentences have been removed from it. Choose the correct sentence (A–D) to fill each gap.
【习题】
Before the mid-20th century, most people felt travelling into space was an impossible dream. However, some scientists were determined to help humans realise their dream to explore space. _____________________________ On 4 October 1957, the Sputnik 1 satellite was launched by the USSR and successfully orbited around Earth. Afterwards, the USSR focused on sending people into space, and on 12 April 1961, Yuri Gagarin became the first person in the world to go into space.
D
(2) Read the text. Several sentences have been removed from it. Choose the correct sentence (A–D) to fill each gap.
【习题】
_____________________________ All the astronauts on the USSR’s Soyuz 11 and America’s Challenger died during their missions.
_______________________________ Europe, the US, and China all have plans to further study and explore planets like Mars and Jupiter. Despite the difficulties, scientists hope future discoveries will not only enable us to understand how the universe began, but also help us survive well into the future.
A
C
Humans have always had a natural curiosity about space.
(3) Use your own words to summarise the main idea for each paragraph.
Paragraph 1: __________________________________________
Paragraph 2: __________________________________________
Paragraph 3: __________________________________________
Paragraph 4: __________________________________________
Paragraph 5: __________________________________________
Space travel became a reality in the 20th century, with American and Soviet space missions.
Space travel has always involved great risk , but despite the risks exploration continues.
China has made great progress in space exploration in the early 2lst century, becoming only the third country to send humans to space.
The future of space exploration looks bright, as many countries are planning further missions.
While I support space exploration, I don't think space is the final frontier just yet. There is still much to learn about the Earth, and we are only at the very beginning of new technological breakthroughs involving information technology and Al. There are many scientific and technological frontiers all around us.
(4) What does the title "Space: The Final Frontier" mean to you Share your ideas with the whole class.
(5) Complete the passage with words from the text.
M___________ is exploring space in the hope of finding out more about the u___________. However,
exploring space is both dangerous and challenging. One of the most dangerous parts of space exploration is helping people to escape Earth’s g___________. If there is a mistake during the l___________, it can lead to an accident that kills everyone on b___________. Getting out of o___________ and back to Earth’s surface is also very dangerous. Despite the huge risks though, people will always continue to explore this final f___________ so as to learn its secrets.
ankind
niverse
ravity
aunch
rbit
oard
rontier
Part 02
Discovering Useful Structures
(1) Look at the following sentences and focus on the italicised infinitives. In pairs, discuss their functions and meanings. Find more examples from the unit.
【习题】
1. I trained for a long time to fly airplanes as a fighter pilot.
2. As we all know, an astronaut needs to be healthy and calm in order to work in space.
3. First of all, you must be intelligent enough to get a related college degree.
4. Some scientists were determined to help humans realise their dream to explore space.
5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space.
目的状语
目的状语
结果状语
定语,修饰their dream
定语,修饰the first person
Suggested Answer
Other sentences from the unit include:
...and scientists work hard to find answers. (as adverbial)
They make vehicles to carry brave people into space to find out the secrets of the universe. (as attribute; as adverbial)
For example, America's NASA space agency launched Voyager 1 on 5 September 1977 to study deep space… (as adverbial)
These disasters made everyone sad and disappointed, but the desire to explore the universe never died. (as attribute)
China became the third country in the world to independently send humans into space in 2003,… (as attribute)
Suggested Answer
Other sentences from the unit include:
...followed by the vehicle Jade Rabbit being sent to the moon to study its surface. (as adverbial)
...China launched the Tiangong 2 space lab into space and Tianzhou 1 to dock with it. (as adverbial)
This signalled one step further in China's plan to establish a space station in the future. (as attribute)
...China has sent Change 4 to explore the surface of the far side of the moon to make measurements and observations. (both as adverbial)
...and China all have plans to further study and explore planets like Mars and Jupiter. (as attribute)
(2) Rewrite the sentences using infinitives or “in order to/so as to + do”. Change the italicised parts accordingly.
【习题】
1. In 2003 Yuri Malenchenko became the first person who got married in space. →
In 2003 Yuri Malenchenko became the first person to get married in space.
2. In space, astronauts collect all dirty water so that it can be recycled for later use. →
In space, astronauts collect all dirty water so as to recycle it for later use.
3. Mankind has always been curious about the universe and many people have dreamt that one day they would fly into space.
_____________________________________________________________________
Mankind has always been curious about the universe and many people have the dream to fly into space one day.
(2) Rewrite the sentences using infinitives or “in order to/so as to + do”. Change the italicised parts accordingly.
【习题】
4. Astronauts’ bones and muscles can get very weak in space due to the lack of gravity, so they need to exercise every day, which will help them stay healthy
_____________________________________________________________________
5. Astronauts have to use tape to stick everything down while working in space because everything would float off otherwise.
_____________________________________________________________________
6. During a spacewalk, astronauts have to move slowly so that they can keep their bodies under control.
_____________________________________________________________________
Astronauts' bones and muscles can get very weak in space due to the lack of gravity, so they need to exercise every day to/in order to/so as to stay healthy.
Astronauts have to use tape to stick everything down while working in space to/in order to/so as to keep everything from floating off.
During a spacewalk, astronauts have to move slowly to/in order to/so as to keep their bodies under control.
(3) Complete the passage with the correct forms of the verbs in brackets.
【答案】
Sending people to other planets or even beyond the solar system is not an easy goal __________(achieve). One of the problems is that the trip would take a very long time. For example, ________(use) current technology, it would take over two years ________(get) to the closest planet, Mars, and back. Although light is the fastest thing __________(know) in the universe, it could take more than four years to reach the nearest star system. Will scientists figure out a way __________(store) sufficient food and water for the long journey Is it possible to travel faster than light No one knows the answers yet. However, space scientists never give up. They are experimenting with growing crops in space so as ____________(help) astronauts get enough food on longer journeys through space.
to achieve
不定式作定语
using
方式状语
to get
不定式作真正主语
known
后置定语
to store
不定式作定语
to help
不定式作目的状语,构成 so as to...
Part 03
Reading for Writing
IS EXPLORING SPACE A WASTE OF TIME AND MONEY!
Countries around the globe are spending billions of dollars and lots of time on various space missions, whether to Mars or other planets much further away. Some people argue that we should stop wasting time and money exploring space. Instead, we should feed the world's poor and find immediate solutions to other problems, such as pollution and fatal diseases. However, others feel this is a shallow view which fails to realise how exploring space helps us.
Firstly, exploring space has already made a difference in the fight against world hunger. It has directly resulted in the many satellites that now orbit Earth. A number of the satellites record data on land and weather patterns. Then the data is transmitted to scientists on Earth. After careful analysis, the scientists can provide useful recommendations and advice for farmers. As a result, space-based science has helped farming in its efforts to grow enough food to feed Earth s increasing population.
【课文】
Secondly, space exploration has already promoted technological improvements that benefit us all. High-end products around the world are made to a higher standard now because of advanced technology which was first created to meet the requirements for space exploration. For example, space technologies have helped the research and development of different types of new material. They have also helped companies make better heart monitors and other machines that doctors regularly use. Today, space technologies are widely used in all kinds of industries, and everyday products, such as memory foam pillows and smartphone cameras, are changing our lives.
【课文】
Finally, sending astronauts into space has helped people to think about the world s problems and even to find ways to solve them. Seeing pictures of our planet as an island in a black sea made people realise that our planet's resources are limited. In order to provide for such a rapidly increasing population, scientists are trying to find other planets that could one day be our new home. The greatest attention at present is on Mars because it is closer to Earth. In the future, humans may live on both planets.
In closing, exploring space provides the world with many different benefits. Therefore, it should continue so as to provide new and better solutions to people s short-term and long-term problems.
【课文】
(1) Read the argumentative essay about space exploration and answer the questions.
【习题】
1. Why are some people against space exploration
Because they think exploring space is a waste of time and money, and that we should use this money to feed the world's poor people and find immediate solutions to other problems, such as pollution and fatal diseases, instead.
(1) Read the argumentative essay about space exploration and answer the questions.
【习题】
2. What else can you do there
Satellites have helped people study land and weather patterns. These studies help farmers grow more crops and warn them about natural disasters before they occur.
(1) Read the argumentative essay about space exploration and answer the questions.
【习题】
3. What did the pictures of Earth from space make people realise
They made people realise that our planet's resources are limited.
4. How does space exploration benefit the products that people use nowadays
Advanced technology developed for space exploration has promoted technological improvements that benefit us all by allowing products to be made to a higher standard.
(2) Study the organisation and language features.
【习题】
1. Read the first paragraph and underline the different opinions about space exploration.
Some people argue that we should stop wasting time and money exploring space. However, others feel this is a shallow view which fails to realise how exploring space helps us.
3. Underline the sentence that repeats the writer’s opinion in the last paragraph.
In closing, exploring space provides the world with many different benefits.
(2) Study the organisation and language features.
【习题】
2. Find the three topic sentences that summarise the writer’s arguments about space exploration.
Firstly, exploring space has already made a difference in the fight against world hunger. Secondly, space exploration has already promoted technological improvements that benefit us all. Finally, sending astronauts into space has helped people to think about the world's problems and even to find ways to solve them.
Assessing Your Progress
(1) Read the passage about Lee’s work in space and fill in the blanks with the words and phrases in the box.
Lee was busy at work. Unlike most people around the world though, his workplace was in space. There was a problem with a(n) _________. It was supposed to send information about the sun back to the ________ on Earth, but the equipment for sending the ________ was not working properly. So it was Lee's mission to _________ the problem and solve it.
satellite
agency
data
figure out
(2) Complete the sentences with the correct forms of the words in the box.
1. After having succeeded in ________ satellites into space, people wanted to know if it was safe for a human to go into space. On 3 November 1957, a dog named Laika became the first living thing ________ space. She was also the first one to die there.
2. The USSR and the US both wanted to be the first to send a person to the moon. Later, the US succeeded, and Neil Armstrong became the first man ________ onto the moon. During the first moon landing, astronauts had no vehicles ________, so they had to explore the moon on foot. On the fourth mission ________ on the moon, astronauts took a lunar vehicle so that they could explore places further away.
sending
to reach
to step
to use
to land
(2) Complete the sentences with the correct forms of the words in the box.
3. Astronauts must wear spacesuits when they work in space because there is no air ________ and it can be very cold outside the spacecraft. While ________, they must attach themselves to something so as ________ floating around.
4. The accident on the Apollo 13 spacecraft resulted in a loss of oxygen, water, and electrical power. The astronauts on board had to fight ________. At the same time, Houston’s Mission Control worked hard ________ the astronauts return to Earth safely.
to breathe
sleeping
to prevent
to survive
to help
Thank You