根據(jù)語境選擇方框內(nèi)恰當(dāng)?shù)脑~替換劃橫線的詞

exceptional boost crisis shift substantial get involved in consisting of

（1）Without a major improvement in tourism，the economy will suffer even further.
（2）When you participate in sports and athletes，a lot of the racial barriers are broken down.
（3）The feet are highly specialised structures made up of 26 small delicate bones.
（4）This progress has greatly improved the prospects for growth and for a significant reduction in poverty over the next decade.
（5）At the age of five he showed outstanding talent as a musician.
（6）This accident caused a dramatic change in public opinion.
（7）She has always been to the fore at moments of danger.

【考點(diǎn)】名詞短語；介詞短語；形容詞短語；動(dòng)詞短語；副詞短語；固定搭配/句型．

【答案】boost；get involved in；consisting of；substantial；exceptional；shift；crisis