题目
Fill in the blanks with the words and expressions.Change the form where necessary. boost；prospect；defect；accelerate；speculate；undertake；invest；promote （1）Nature has ____ these animals with a capacity for not showing fear.（2）It has long been known that regular exercise ____ all-round good health.（3）Human activities can cause or ____ permanent changes in natural systems.（4）About 800 soldiers ____ from the eastern part of that country.（5）I think career ____ in science and technology are virtually unlimited.（6）The farmers hope that warmer weather and more rain will ____ their farm output.（7）This discovery has led scientists to ____ on the existence of other galaxies.（8）People should ____ risky action only after they have carefully considered its consequences.
Fill in the blanks with the words and expressions.Change the form where necessary.
（1）Nature has ____ these animals with a capacity for not showing fear.
（2）It has long been known that regular exercise ____ all-round good health.
（3）Human activities can cause or ____ permanent changes in natural systems.
（4）About 800 soldiers ____ from the eastern part of that country.
（5）I think career ____ in science and technology are virtually unlimited.
（6）The farmers hope that warmer weather and more rain will ____ their farm output.
（7）This discovery has led scientists to ____ on the existence of other galaxies.
（8）People should ____ risky action only after they have carefully considered its consequences.
| boost；prospect；defect；accelerate； speculate；undertake；invest；promote |
（2）It has long been known that regular exercise ____ all-round good health.
（3）Human activities can cause or ____ permanent changes in natural systems.
（4）About 800 soldiers ____ from the eastern part of that country.
（5）I think career ____ in science and technology are virtually unlimited.
（6）The farmers hope that warmer weather and more rain will ____ their farm output.
（7）This discovery has led scientists to ____ on the existence of other galaxies.
（8）People should ____ risky action only after they have carefully considered its consequences.
题目解答
答案
（1）考查过去分词。句意：大自然赋予这些动物不表现出恐惧的能力。分析可知，此处应用动词作谓语，根据句意可知，动词invest"赋予"满足句意要求，根据语境及空前has可知，句子使用了现在完成时，此处应用过去分词。故填invested。
（2）考查动词时态及主谓一致。句意：人们早就知道经常锻炼能促进全面的健康。分析可知，此处应用动词作从句谓语，根据句意可知，动词promote"促进"满足句意要求，根据语境可知，句子是在陈述一般事实，应用一般现在时，主语为regular exercise，谓语动词应用第三人称单数形式。故填promotes。
（3）考查动词原形。句意：人类活动可以导致或加速自然系统的永久性变化。分析可知，此处应用动词与and前的cause并列作谓语，根据句意可知，动词accelerate"加速"满足句意要求，根据前文情态动词can可知，动词应用原形。故填accelerate。
（4）考查动词时态。句意：大约800名士兵从该国东部叛逃。分析可知，此处应用动词作谓语，根据句意可知，动词defect"叛逃"满足句意要求，根据语境可知，句子是在陈述过去的事情，应用一般过去时。故填defected。
（5）考查可数名词复数。句意：我认为科学技术的职业前景几乎是无限的。分析可知，此处应用名词作从句主语，根据句意可知，名词prospect"前景"满足句意要求，结合后文are可知，此处应用其复数形式。故填prospects。
（6）考查动词原形。句意：农民们希望温暖的天气和更多的雨水能提高他们的农业产量。分析可知，此处应用动词作从句谓语，根据句意可知，动词boost"使增长"满足句意要求，根据前文情态动词will可知，动词应用原形。故填boost。
（7）考查动词原形。句意：这一发现促使科学家们推测其他星系的存在。根据空前不定式符号to可知，此处应用动词原形，根据句意可知，动词speculate"推测"满足句意要求。故填speculate。
（8）考查动词原形。句意：人们只有在仔细考虑其后果后才应该采取冒险行动。根据空前情态动词should可知，此处应用动词原形作谓语，根据句意可知，动词undertake"承担，采取"满足句意要求。故填undertake。
（2）考查动词时态及主谓一致。句意：人们早就知道经常锻炼能促进全面的健康。分析可知，此处应用动词作从句谓语，根据句意可知，动词promote"促进"满足句意要求，根据语境可知，句子是在陈述一般事实，应用一般现在时，主语为regular exercise，谓语动词应用第三人称单数形式。故填promotes。
（3）考查动词原形。句意：人类活动可以导致或加速自然系统的永久性变化。分析可知，此处应用动词与and前的cause并列作谓语，根据句意可知，动词accelerate"加速"满足句意要求，根据前文情态动词can可知，动词应用原形。故填accelerate。
（4）考查动词时态。句意：大约800名士兵从该国东部叛逃。分析可知，此处应用动词作谓语，根据句意可知，动词defect"叛逃"满足句意要求，根据语境可知，句子是在陈述过去的事情，应用一般过去时。故填defected。
（5）考查可数名词复数。句意：我认为科学技术的职业前景几乎是无限的。分析可知，此处应用名词作从句主语，根据句意可知，名词prospect"前景"满足句意要求，结合后文are可知，此处应用其复数形式。故填prospects。
（6）考查动词原形。句意：农民们希望温暖的天气和更多的雨水能提高他们的农业产量。分析可知，此处应用动词作从句谓语，根据句意可知，动词boost"使增长"满足句意要求，根据前文情态动词will可知，动词应用原形。故填boost。
（7）考查动词原形。句意：这一发现促使科学家们推测其他星系的存在。根据空前不定式符号to可知，此处应用动词原形，根据句意可知，动词speculate"推测"满足句意要求。故填speculate。
（8）考查动词原形。句意：人们只有在仔细考虑其后果后才应该采取冒险行动。根据空前情态动词should可知，此处应用动词原形作谓语，根据句意可知，动词undertake"承担，采取"满足句意要求。故填undertake。