87. _____________________________(多虧了一系列的新發(fā)明)，doctors can treat this disease successfully.
88. In my sixties, one change I notice is that ______________________(我比以前更容易累了).
89. I am going to pursue this course, _____________________________________ (無(wú)論我要做出什么樣的犧牲).
90. I would prefer shopping online to shopping in a department store because _________________(它更加方便和省時(shí)).
91. Many Americans live on credit, and their quality of life _____________________(是用他們能夠借到多少來(lái)衡量 的), not how much they can earn.
87. Thanks for/Due to series of new inventions
解析：考點(diǎn)是詞組“多虧，由于”。
88. I feel/get tired more easily than before
解析：考點(diǎn)是比較級(jí)more … than.
89. no matter what sacrifice I am going to make/ whatever sacrifice I will make/ no matter how much I would sacrifice
解析：考點(diǎn)是狀語(yǔ)從句。
90. it/ the former is more convenient and timesaving
解析：考點(diǎn)是比較級(jí)more, 詞匯。
91. is measured by how much they can borrow
解析：考點(diǎn)是被動(dòng)語(yǔ)態(tài)、賓語(yǔ)從句。
88. In my sixties, one change I notice is that ______________________(我比以前更容易累了).
89. I am going to pursue this course, _____________________________________ (無(wú)論我要做出什么樣的犧牲).
90. I would prefer shopping online to shopping in a department store because _________________(它更加方便和省時(shí)).
91. Many Americans live on credit, and their quality of life _____________________(是用他們能夠借到多少來(lái)衡量 的), not how much they can earn.
87. Thanks for/Due to series of new inventions
解析：考點(diǎn)是詞組“多虧，由于”。
88. I feel/get tired more easily than before
解析：考點(diǎn)是比較級(jí)more … than.
89. no matter what sacrifice I am going to make/ whatever sacrifice I will make/ no matter how much I would sacrifice
解析：考點(diǎn)是狀語(yǔ)從句。
90. it/ the former is more convenient and timesaving
解析：考點(diǎn)是比較級(jí)more, 詞匯。
91. is measured by how much they can borrow
解析：考點(diǎn)是被動(dòng)語(yǔ)態(tài)、賓語(yǔ)從句。