English
高校生
請教我第三題
We
IS
2
or cTackSs in the ice % 了 ‧
the ice. 2 breathe at some time, polar bears Wait 了here
for a Seal to come up for a breath. Polar bears need the ice to live. They
hunt Seals from the ice floes. They have to have enough fat storage build up
throughout the Winter to 1ast them throughout the sprling, Summer, and parts
of fall.
The temperatures that the polar bears have to endure in the winter can
Tange from -40”F' to as cold as -90F. The summer months can be much
Wwarmer for the polar bears with temperatures 3 to ESEHeB
who have been Working in the polar and arctic reglons have taken ice core
samples from deep within the snow and ice that cover the northem pole.
BE discoveries. The carbon dioxide levels have
never before, over the 1ast ten thousand years, got to 300 parts per millton
dioxide level has
(ppm). However, within the ]ast few decades the carbon 和
000 pp 5 SuTDaSS9d it greatly. What does that meamy 給
7
(C) Not having to
(A) riSe (B) ralse
(A) alarming (B) horrifted
(A) as (B) but
(A) In (B)hnot
只 玉
(D) Seals having to
(C) reaching
(C) fatal
(C) that
(C)
還
upon
中
(D) being arlsen
(D) balanced
(D) scarcely
(D) only
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