UNIT 9 SCIENCES AND TECHNOLOGY
Key unit competence To use language learnt in the context of Sciences
and Technology.
Introductory Activity Picture observation and interpretation
Observe the above pictures then answer these questions
1. Discuss the use of the devices in fig.1.
2. The people in fig.2 are around the table sharing a drink but
they are not talking to one another because they are busy
chatting. Do you think it is a good practice? Explain.
3. Explain the use of the devices in fig.3.
4. Explain the use of the devices in fig.4.
9.1. Talking about words and expressions used in the
context of science and technology
9.1.1. Learning activity: Reading and text analysis
• Text1
: Technology and Medicine
Read the passage below and answer the questions that follow:
A large number of digital innovations are revolutionizing healthcare and
technology in medicine is here to stay. Numerous innovations and
new solutions are already on the market and they have all improved
healthcare drastically. Today, multiple medical issues such as congestive
heart failure, diabetes, medication noncompliance, even stressful
isolation, are researched and solved with remarkable new technologies.
The following are some areas researchers are targeting:The first area
targeted by researchers is heart failure. One of the most common and
costly diagnoses is that of heart failure, with a mortality rate closer
to cancer. It includes three types of sensors – wristband, necklace and
watch – which are used for testing. This type of diagnosis gives both
patients and doctors continuous information on how a compromised
heart is functioning.
The second area targeted by researchers is 3D printing. These days,
medical researchers are considering the potential of 3D printing in
medicine. For example, Kaiser Permanente’s Los Angeles Medical Center
is perfecting the use of 3D printers to replicate multidimensional models
of problematic areas inside patients. Surgeons can handle the models
and simulate a variety of possible operation replicas before performing
the actual surgery. Alternatively, 3D printing can be used in reproducing
bones or other organs in the human body.
The second area targeted by researchers is the area of mobile applications.
Today, mobile applications are available for everything. In the healthcare
sector, this is especially true. Doctors and patients are discovering new
ways to use technology to monitor personal health. Nowadays, tracking
daily sleep patterns, counting calories, researching treatment options,
and even monitoring heart rate is possible.
Thirdly, remote monitoring technology is one of the most useful
and practical innovations in recent years. The systems can be used by
patients in the comfort of their homes to reduce the time and financial
cost of recurring visits to the doctor. By using a small device designed to
measure a particular health issue, doctors can analyse a patient’s data
remotely without the need for them to come down to the hospital.
This must be the reason why the Government of Rwanda recognized that
there is a need to strengthen science, technology and research and is
engaged in many National and Regional initiatives to help build this
capacity.
https://www.hunimed.eu/news/technology-changing-world-medicine/
Comprehension questions
1. State four medical issues that are researched and solved with
remarkable new technologies.
2. What are the three areas targeted by researchers mentioned in
the passage?
3. State and explain the use of the three types of sensors mentioned
in the passage.
4. Explain how 3D printing technology helps surgeons in their work.
5. Evaluate the use of mobile applications in healthcare sector.
6. Assess the importance of remote monitoring technology in
healthcare sector
• Vocabulary activity
Use a dictionary and thesaurus to look up the missing meanings of the
words/phrases in the table below. Copy the table into your book and fill
in the blank spaces.
• Text 2: Body systems
Read the passage below and answer the questions that follow:
Our bodies consist of a number of biological systems that carry out specific
functions necessary for everyday life.
The job of the circulatory system is to move blood, nutrients, oxygen,
carbon dioxide, and hormones, around the body. It consists of the heart,
blood, blood vessels, arteries and veins.
The digestive system consists of a series of connected organs that
together, allow the body to break down and absorb food, and remove
waste. It includes the mouth, oesophagus, stomach, small intestine,
large intestine, rectum, and anus. The liver and pancreas also play a role
in the digestive system because they produce digestive juices.
The endocrine system consists of eight major glands that secrete
hormones into the blood. These hormones, in turn, travel to different
tissues and regulate various bodily functions, such as metabolism,
growth and sexual function
The immune system is the body›s defence against bacteria, viruses
and other pathogens that may be harmful. It includes lymph nodes,
the spleen, bone marrow, lymphocytes (including B-cells and T-cells), the
thymus and leukocytes, which are white blood cells.
The lymphatic system includes lymph nodes, lymph ducts and lymph
vessels, and also plays a role in the body›s defences. Its main job is to
make and move lymph, a clear fluid that contains white blood cells, which
help the body fight infection. The lymphatic system also removes excess
lymph fluid from bodily tissues, and returns it to the blood.
The nervous system controls both voluntary action (like conscious
movement) and involuntary actions (like breathing), and sends signals
to different parts of the body. The central nervous system includes the
brain and spinal cord. The peripheral nervous system consists of nerves
that connect every other part of the body to the central nervous system.
The body’s muscular system consists of about 650 muscles that aid in
movement, blood flow and other bodily functions. There are three types
of muscle: skeletal muscle which is connected to bone and helps with
voluntary movement, smooth muscle which is found inside organs and
helps to move substances through organs, and cardiac muscle which is
found in the heart and helps pump blood
The reproductive system allows humans to reproduce. The male
reproductive system includes the penis and the testes which produce
sperm. The female reproductive system consists of the vagina, the uterus
and the ovaries which produce eggs. During conception, a sperm cell
fuses with an egg cell, which creates a fertilized egg that implants and
grows in the uterus.
Our bodies are supported by the skeletal system, which consists of
206 bones that are connected by tendons, ligaments and cartilage. The
skeleton not only helps us move, but it’s also involved in the production
of blood cells and the storage of calcium. The teeth are also part of the
skeletal system, but they aren’t considered bones.
The respiratory system allows us to take in vital oxygen and expel
carbon dioxide in a process we call breathing. It consists mainly of the
trachea, the diaphragm and the lungs.
Theurinary system helps eliminate a waste product called urea from the
body, which is produced when certain foods are broken down. The whole
system includes two kidneys, two ureters, the bladder, two sphincter
muscles and the urethra. Urine produced by the kidneys travels down
the urethras to the bladder, and exits the body through the urethra
The skin, or integumentary system, is the body’s largest organ.
It protects us from the outside world, and is our first defence against
bacteria, viruses and other pathogens. Our skin also helps regulate body
temperature and eliminate waste through perspiration. In addition to
skin, the integumentary system includes hair and nails
Adapted from https://www.livescience.com/37009-human-body.html
• Comprehension questions
1. What biological systems are mentioned in the passage?
2. Which biological system helps oxygen to move around in the
body?
3. What is the role of the liver and pancreas in the digestive system?
4. Which biological system regulates metabolism, growth and
sexual function?
5. Which biological system protects from falling sick?
6. Do you think our nervous system has anything to do with our
sight? Justify your answer.
7. State the three types of muscles and explain their functions.
8. What is the role of urinary system?
9. What is the body’s largest organ?
10. Hair and nails belong to which biological system?
• Vocabulary activity
Use a dictionary, thesaurus or Internet to look up meaning of the following
words/phrases as they are used in the above passage. (The words are
highlighted in the text)
a. Hormones
b. Metabolism
c. Bacteria
d. Viruses
e. Pathogens
f. Leukocytes
g. Tissues
h. Spinal cord
i. Cardiac
j. Conception
k. Perspiration
9.1.2. Application activity Composition writing
1. Have you ever been in a hospital? Write a short composition
describing a technological tool you saw there. If you never
went there, you can describe a tool you have heard of or read
about.
2. Write a short composition on the importance of physical
exercise for our body systems.
9.2. Describing the role of ICT devices and their side effects
9.2.1. Learning activity Reading and text analysis
• Text1: The positive and negative impacts of ICT
Read the passage below and answer the questions that follow:
As it is known from time immemorial that everything in life is like the
two sides of a coin, there is always a positive and negative side of every
phenomenon. But whether the effect is positive or negative the effects
of Information Communication Technology (ICT) is far reaching and
cannot be overemphasized. The Effects of ICT lens looks at how our
lives have been changed, for better and for worse, by the impact of ICT.
It includes both positive effects and negative effects.
One of the positive effects of ICT is access to information. Possibly
the greatest effect of ICT on individuals is the huge increase in access
to information and services that has accompanied the growth of the
Internet. Some of the positive aspects of this increased access are better,
and often cheaper communications, such as phone calls and Instant
messaging. In addition, the use of ICT to access information has brought
new opportunities for leisure and entertainment.
Another positive effect of ICT is easy access to education. With ICT there
are new ways of learning, such as interactive multi-media and virtual
reality. ICT has also created new job opportunities, such as flexible and
mobile working, virtual offices and jobs in the communication industry
among others.
ICT can be used for processes that had previously been out of the reach
of most individuals, such as photography, where digital cameras, photoediting software and high-quality printers have enabled people to produce
results that would previously require a photographic studio.
ICT can be used to help people overcome disabilities. For example, screen
magnification or screen reading software enables partially sighted or
blind people to work with ordinary text rather than Braille.
As far as negative effects are concerned, ICT has caused Job loss, reduced
personal interaction and reduced physical activity.
As for Job loss, one of the largest negative effects of ICT can be the loss
of a person’s job. This has both economic consequences, loss of income,
and social consequences, loss of status and self-esteem. Job losses
may occur for several reasons, including the replacement of manual
operations by automation. This can happen when, for example, robots
replace people on an assembly line. People can also lose jobs due to Job
export. This is when Data processing work is sent to other countries
where operating costs are lower. Multiple workers can also be replaced
by a smaller number of people who are able to do the same amount of
work using machines.
Personal interaction and physical activity have also been negatively
affected by ICT. Being able to work from home is usually regarded as
being a positive effect of using ICT, but there can be negative aspects
as well. Most people need some form of social interaction and physical
exercise.
Adapted from https://ajahana.wordpress.com/2012/06/27/thepositive-and-negative-impacts-of-ict-5/
• Comprehension questions
1. What do you understand by “everything in life is like the two
sides of a coin”?
2. What strengthened the huge increase in access to information?
3. Explain how ICT has created new job opportunities.
4. Using an example, explain how ICT has enabled people to do
processes that had previously been out of the reach of most
individuals.
5. In which ways can ICT make people lose their jobs?
• Vocabulary activity
Use a dictionary, thesaurus or Internet to look up the meaning of the
following words/phrases as they are used in the above passage. (The
words are highlighted in the text)
a. phenomenon
b. Overemphasized
c. Lens
d. Information
e. Internet
f. Leisure
g. Entertainment
h. Virtual reality.
i. Manual operations
j. Automation
k. Job export
Application activities: Sentence writing, Composition and Debate
1. Use each of the above words in a sentence of your own to
illustrate how they are used.
2. Writer a 100-word composition on smartphone addiction.
3. Debate:
Referring to the notes on debating techniques in unit 5, debate the
following motion.
“This house believes that ICT has done more harm than good”
9.3. Language structure: Word formation
Introduction:
In linguistics (particularly morphology and lexicology), word
formation refers to the ways in which new words are made on the basis of
other words or morphemes. This is also called derivational morphology.
Most English vocabulary arises by making new lexemes out of old ones.
This can be done either by adding an affix to previously existing forms,
altering their word class, or combining them to produce compounds.
Below are some types of word formation processes.
A. Derivation
Derivation is the creation of words by modification of a root without the
addition of other roots. Often the effect is a change in part of speech.
Examples
• Empty-emptiness (adjective was changed into a noun)
B. Affixation
(This is like a subtype of derivation)
Affixation is the process of adding a morpheme or affix to a word to
create either a different form of that word or a new word with a different
meaning; affixation is the most common way of making new words in
English. An affix is a word element of English grammar used to alter
the meaning or form of a word and comes in the form of either a prefix or
a suffix. There two primary types of affixation that are prefixation (the
addition of a prefix) and suffixation (the addition of a suffix).
C. Prefixation
Prefixation is a morphological process whereby a bound morpheme is
attached to the front of a root or stem. The kind of affix involved in this
process is called a prefix. Prefixes include examples like “un-,” “self-,”
and “re-,”
Example:
The prefix un- attaches to the front of the stem selfish to form the
word unselfish.
Other examples include
D. Suffixation
Suffixation is a morphological process whereby a bound morpheme is
attached to the end of a stem. The kind of affix involved in this process is
called a suffix. Suffixes come in the form of ending elements like “-hood,”
“-ing,” “-ness,”, “-ed…”
• Communicate-communicator
Think of the 26 common suffixes in the table as clues to the meaning
of words. Keep in mind, though, that the meaning of words is best
determined by studying the contexts in which they are used as well as
the parts of the words themselves.
E. Noun Suffixes
F. Verbs suffixes
G. Adjective Suffixes
The examples above are adopted from https://www.thoughtco.com/
common-suffixes-in-english-1692725
Exercises
1. Use prefixes to find the opposite of these verbs:
a. Use
b. Agree
c. Engage
d. Behave
e. Understand
f. Fold
g. Spell
h. Connect
i. Close
2. Complete the sentences by writing the correct prefix from the table
below in the blank space. You can use a dictionary to help you
e. I couldn’t find any…in his theory. (weak)
f. He wants to be a…when he grows up. (mathematics)
g. There were only a…of people at the match. (hand)
h. The road was too narrow, so they had to…it. (wide)
i. I think that you should…your decision. It may not be the best
thing to do. (consider)
j. You need a…of motivation, organization and hard work to realize
your dreams.(combine
End unit assessment
1. Use a prefix or a suffix to make a new word out of the word in
brackets. Complete the sentence with it
a. I can’t answer this question. It’s…(possible).
b. Don’t stand near the water. It’s too… (danger).
c. I don’t like this fish. It’s not very well… (cook).
d. Kate started crying because she was so…(happy)
e. If you have a haircut it will change your…(appear)
f. Paul never waits in queues. He is too…(patient)
g. Thank you for your advice. You have been very…(help).
h. Stealing other people’s money is…(honest)
i. Our science … is very young. (teach)
j. Harry didn’t think the book was very…(interest).
k. A million pounds was given to the hospital by an…person
(known)
l. When you…this paragraph, make it a bit shorter (write)
m.That was a great film. It was really…(enjoy)
n. Mary was wearing a/an…hat (usual)
o. I like this town. The people are very…(friend)
p. I don’t think you’re right. I…with you completely (agree)
2. Identify at least five words formed through the process of
affixation in the following paragraph.
One of the positive effects of ICT is access to information. Possibly
the greatest effect of ICT on individuals is the huge increase in access
to information and services that has accompanied the growth of the
Internet. Some of the positive aspects of this increased access are better
and often cheaper communication means, such as phone calls and
instant messaging. In addition, the use of ICT to access information
has brought new opportunities for leisure and entertainment.
3. Write a short composition on advantages and disadvantages of
social media in society.
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Principles and Guidelines For Managing Tourism at Places of
Cultural and Heritage Significance.
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nl/Cultural_Heritage/What _is_cutural_Heritage
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