3.1 Vocabulary
Answers Description of the photograph
1. Person using a camera with a large lens. Capturing visual information. Could be an analogue or digital camera. The number of pixels depends on the quality of the sensor and processor, and the level of compression.
2. Person using a touchscreen to send a text. Creating digital text data.
3. Person in a recording studio – listening to analogue sound in the headphones. Possibly adjusting the frequency of the sound waves. Creating digital data.
4. People making a video using a video camera and sound recording equipment. Capturing analogue visual and audio information and converting these to digital data. Possibly using compression techniques to reduce the amount of data. The resolution of the video will depend on the quality of the lens and the camera sensor, and the level of compression used.
5. Person reading a text on a screen (possibly sending) – using or creating digital text data.
6. Person watching a video – using digital audio and video. The resolution of the image depends on the number of pixels on the screen and the speed of the processor. (May be listening to sound on headphones.)
7. Person listening to music or speech on their headphones. Digital sound information is converted into analogue sound waves in the headphones. The quality of the sound could depend on the type of compression used.
C
LANGUAGE NOTE Stress in multisyllable words In English, speakers emphasize the stressed syllable in a multisyllable word. Sometimes listeners may not even hear the unstressed syllables. Vowels often change to schwa or a reduced form in unstressed syllables.
Possible words students could include
analogue, camera, compression, digital, lens, pixel, sensor
Multisyllable words may have more than one stressed syllable. As well as the primary (strongest) stress, there may be one or more secondary stresses. For example, there is a secondary stress on the first syllable of resolution /ˌrezəˈluːʃn/. For the present purposes, students should identify only the primary, or strongest, stress in the word.
Stress sometimes moves to fit common patterns when you add a suffix, e.g., video /ˈvɪdiəʊ/g videography /vɪdɪˈɒgrəfi/.
screen, digital
analogue, compression, digital, frequency, headphones, sound waves
analogue, camera, compression, digital, lens, resolution, sensor, video
Explain that word stress in English is very important and that Vocabulary Bank 3.1 (at the end of the unit) can help them with this.
VOCABULARY BANK 3.1 Identifying stress within words
If necessary, go over some of the key points from Vocabulary Bank 3.1 to ensure that students understand the task.
3.1_C 3.1_B screen
headphones, processor, resolution, screen, video
Set the task for pairwork, and tell students to mark the stressed syllables on the PDF provided or in the Course Book. You could use the recordings in the supplementary audio again to help them.
Encourage and support, but do not feed back until all students have completed the questions.
Elicit answers from the students, and feed back visually to complete the table below.
analogue, compression, digital, headphones, sound waves
Answers lens /lenz/
screen /skriːn/
camera /ˈkæmrə/ pixel /ˈpɪksl/
headphones /ˈhedfəʊnz/ sensor /ˈsensə(r)/ sound wave /ˈsaʊnd weɪv/ analogue /ˈænəlɒg/ frequency /ˈfriːkwənsi/
video /ˈvɪdɪəʊ/ compression /kəmˈpreʃn/ resolution /ˌrezəˈluːʃn/
51 speaker /ˈspiːkə(r)/ digital /ˈdɪʤɪtl/ processor /ˈprəʊsesə(r)/
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