8、___11___, because these connections are made through effort and practice, scientists believe that intelligence can expand and fluctuate ___12___ mental effort. 11. [A]Therefore [B]Moreover [C]Otherwise [D]However
12.[A]according to [B]regardless of [C]apart from [D]instead of
11題填入的是一個連詞,那么考察的是邏輯關系,就這道題目來說,應該看這句和前句的邏輯關系。前一句連接神經元從而刺激智力的能力是與生俱來的,而這句說的是各部分連接靠的是努力和練習,前后兩句從先天和后天來說,是意義相反的,因此11題填入的是轉折關系的連詞,只有選項D符合。[A]Therefore是因果關系, [B]Moreover是遞進關系, [C]Otherwise是條件關系。12小題填入的是介詞,屬于詞匯類題目,那我們看一下此空所在主句與前邊從句是由because引導出來的因果關系,because從句是說因為各部分連接靠的是努力和練習,因此科學家認為智力的增長和波動也與后天努力有關系。因為在前文的第七句中提到各神經元的連接可以刺激智力增長,這樣也可以把11、12句中的關系理出來。12.[A]according to是根據的意思,同上句中的through;[B]regardless of 不管的意思(We will go regardless of whether);[C]apart from 除了的意思;[D]instead of代替的意思(He is too busy, let me go instead of him.)
9、Now, a new Web-based company has taken it a step ___13___ and developed the first "brain training program" designed to actually help people improve and regain their mental ___14___.