This document provides information on several topics: 1. It discusses reading comprehension and how to make questions using wh- words or auxiliary verbs. 2. It summarizes a paragraph about changes in newspaper production processes and the increased use of automation. 3. It briefly defines virtual reality applications and technologies like VR headsets that simulate immersive virtual environments. 4. It gives a short overview of 3D printing and additive manufacturing processes that construct 3D objects from digital models in a layer-by-layer fashion.

1. Reading
Comprehension,
Prefixes, Root Words
Week 3: Lecture 9
Zafar Ullah, Air University, Islamabad,
zafarullah76@gmail.com

2. Reading Comprehension
• Recognize words
• Recognize parts of speech
• Parts of speech and meanings
• Pronounce well
• Understand surface meaning
• Understand deep meaning
• Make questions
• Answer questions
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3. How to make Questions
• Wh words (who, what, when, where, why. How,
which, whose)
• WH Questions
• What is happening?
• Questions with Auxiliary Verb
• Do, does, did, will, shall, Is, am, are, was, were,
will be, shall be, has, have, had, will have, shall
have, has been, have been, had been, will have
been, shall have been, can, may, should,
Is he learning this lesson? 3

4. Read and make questions: Robots 1
The newspaper production process has come a long way from
the old days when the paper was written, edited, typeset and
ultimately printed in one building with the journalists working
on the upper floors and the printing presses going on the
ground floor. These days the editor, subeditors and journalists
who put the paper together are likely to find themselves in a
totally different building or maybe even in a different city. This
is the situation which now prevails in Sydney. The daily paper
is compiled at the editorial headquarters, known as the
prepress centre, in the heart of the city, but printed far away in
the suburbs at the printing centre. Here human beings are in
the minority as much of the work is done by automated
machines controlled by computers.
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5. Paragraph 2 on VR
Virtual reality (VR) is a simulated experience that can be similar
to or completely different from the real world. Applications of
virtual reality can include entertainment (i.e. video games) and
educational purposes (i.e. medical or military training). Other,
distinct types of VR style technology include augmented
reality and mixed reality, sometimes referred to as extended
reality or XR.
Currently standard virtual reality systems use either virtual reality
headsets or multi-projected environments to generate realistic
images, sounds and other sensations that simulate a user's
physical presence in a virtual environment. A person using virtual
reality equipment is able to look around the artificial world, move
around in it, and interact with virtual features or items. The effect
is commonly created by VR headsets. 5

6. 3 D Printing
3D printing, or additive manufacturing, is the construction of
a three-dimensional object from a CAD model or a digital 3D
model.The term "3D printing" can refer to a variety of processes
in which material is deposited, joined or solidified
under computer control to create a threedimensional object, with
material being added together (such as liquid molecules or
powder grains being fused together), typically layer by layer.
In the 1980s, 3D printing techniques were considered suitable
only for the production of functional or aesthetic prototypes, and
a more appropriate term for it at the time was rapid
prototyping.As of 2019, the precision, repeatability, and material
range of 3D printing has increased to the point that some 3D
printing processes are considered viable as an industrial-
production technology, whereby the term additive
manufacturing can be used synonymously with 3D printing. 6

7. Prefix 3
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8. Root Words 2
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9. Root Words 3
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10. Thank You
Office
Make Presentation much more fun
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