Let’s start with a riddle, to get back in the game after this rather long interruption:
you grow them when you learn to fly,
then spread them further and further with time.
What are they?
Wings, of course.
And wings are what this practice paper will be all about.
1 – vocabulary
Review the vocabulary on the subject with this section from L’Anglais pour voler: wings and tail unit .2 – Then test your knowledge with this crossword .
3 – reading comprehension
Read the article « This is how winglets work » on www.boldmethod.com, then answer these questions: – what do winglets do? – how do they do it? – when are wingtip vortices the strongest? – why are the winglets even more efficient now?4 – listening comprehension
Sorry, this link was broken.
We are working on a replacement
5 – grammar
« Then » or « than »? That is the question. Learn more about it and practice here.2 – crossword solution:
ACROSS: 1 wake turbulence, 3 root, 5 flap, 8 walkway, 10 rib, 13 wing tip, 16 span, 17 trailing edge;
DOWN: 2 airfoil, 4 spar, 6 leading edge, 7 vortices, 9 aileron, 11 biplane, 12 winglet, 14 skin, 15 vortex
3 – reading comprehension
– they increase performance (by decreasing fuel burn and increasing range).
– they generate a forward lift component that opposes the drag produced by the wingtip vortices.
– when you are at high angles of Attack (during take-off and landing or at high altitude cruise).
– new technology allow to blend them into the wing,
4 – listening comprehension
runway 31R in the comment has become runway 41R in the subtitles.
5 – grammar
than, then, then, then, than, then, than, then, then, than