Page 94 - 3 STEPS YDT ENGLISH

ENGLISH 2 STEP
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7. Honeybees have a dance move called the ‘waggle dance’, 10. Conventional methods for studying a star are limited
which is a clever way of communicating between themselves to surface properties, such as surface temperature and
_______. luminosity, _______.

A) in spite of having an antioxidant that improves brain functions A) thus providing us deep information about the chemical and
B) so they use their ‘smelly footprints’ to distinguish between the geological structure of stars
scent of a stranger B) because a thorough census was conducted to determine this
C) though they love traditional cottage garden flowers and native stellar population
wild flowers C) but brightness variations of stars are continuously recorded
by the Hubble
D) in order to tell their nestmates where to go to find the best
D) whereas asteroseismology, which uses sound waves,
food source
explores its internal structure
E) as they are environmentally friendly and vital for plants as
E) thereby forcing these stars to undergo a significant mass loss
pollinators
caused by nearby stars

11. Thanks to a modified joystick designed by MIT engineers
to help doctors treat patients with strokes or aneurysms
8. Although best known for his dramatic and expressive quickly and remotely, _______.
artworks, _______.
A) endovascular surgery is a specialised operation that entails
A) Leonardo Da Vinci was one of the greatest painters of the carefully twisting a thin medical wire through the arteries and
Italian Renaissance veins to the desired spot
B) Leonardo Da Vinci’s fascination with machines probably B) robotic systems are assistive technologies in endovascular
began during his boyhood surgery, involving motor drives that advance a wire through
C) after his death, Leonardo Da Vinci’s notebooks were lost, and the body’s vessels
his wonderful ideas were forgotten C) the primary goal is to safely reach the target location using
D) it may seem unusual to include Leonardo Da Vinci in a list of devices such as microcatheters that can be used to deliver
palaeontologists and biologists therapeutic agents
D) it is as flexible as a normal neurovascular guidewire, with a
E) Leonardo Da Vinci also created futuristic inventions that were
soft, magnetically responsive tip that bends in the direction of
ground-breaking for the time
a magnetic field
E) surgeons in one hospital will be able to safely operate on a
patient in another hospital at a critical time by controlling a
robotic arm

9. _______; however, the effects of forest fires should be
reduced with afforestation projects implemented as soon as
12. Although television became available in raw experimental
possible.
formats in the late 1920s, _______.
A) Scrub areas are the habitat for many animal species in the
A) 79 per cent of homes owned a television set with a compact
Mediterrenean climate
and energy-efficient display
B) Symbiosis occurs in forests where several species coexist in B) they contained a tuner for receiving and decoding broadcast
harmony signals with an electronic circuit
C) Adaptation of animals to the forest after fires is more difficult C) it took several years for this new technology to make its way
than plants into consumers’ homes
D) Burnt forests have the capacity to regenerate themselves in D) he had sufficiently developed the technology to demonstrate
the long-term it to the press
E) Residual mineral substances formed after fire cause chemical E) it was shown to the public how to use it for transmission in a
effects television system

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