Read the text and fill in the gaps with the proper form of the capitalized words. Some French scientists (1)
recently able to reproduce and (2)
hear the sounds trees make, when they are in a drought situation and (3)
to extract as much water as they can, from the ground.
This fascinating discovery (4)
by the Grenoble University physicist Philippe Marmottant. They began their experiment by (5)
slivers (щепки) of a dead pine tree and bathing it in hydrogel — essentially (6)
the conditions of a living tree. They then (7)
the branch to an artificially dry environment and (8)
the sounds. What they heard were popping (хлопающий) or gasping sounds made by the tree. In fact, the sounds move 10 times (9)
than what the human ear can hear.
(1) BE
(2) ACTUAL
(3) TRY
(4) MAKE
(5) TAKE
(6) CREATE
(7) EXPOSE
(8) RECORD
(9) FAST
