1. The survival of civilization as we know it is _C_ threat.
A within B towards C under D upon
under threat 受到威脅。
2. You will want two trees about ten feet apart， from _D_ to suspend your tent.
A there B them C where D which
介詞 + which + 動詞不定式(to do sth.) 整體做定語。
本句可改寫為：You will want two tress about ten feet apart， to suspend your tent from.
只要見到有介詞出現(xiàn)在空格之前，而選項中有which， them， there， where等詞則應(yīng)選which。
3. As I was just getting familiar with this job， I had _C_ to ask my boss.
A many B most C much D more
當(dāng)many沒有修飾任何其他詞而單獨(dú)出現(xiàn)時表示很多人。 much在這里相當(dāng)于many things。
4. _A_ quite recently， most mothers in Britain did not take paid work outside the home.
A Until B Before C From D Since
until recently 直到最近; not surprisingly 一點(diǎn)也不奇怪。
5. In some countries， _D_ is called “equality” [平等] does not really mean equal rights for all people.
A which B one C that D what
that可以引導(dǎo)主語從句，但只做引導(dǎo)詞而不充當(dāng)任何成分。
A within B towards C under D upon
under threat 受到威脅。
2. You will want two trees about ten feet apart， from _D_ to suspend your tent.
A there B them C where D which
介詞 + which + 動詞不定式(to do sth.) 整體做定語。
本句可改寫為：You will want two tress about ten feet apart， to suspend your tent from.
只要見到有介詞出現(xiàn)在空格之前，而選項中有which， them， there， where等詞則應(yīng)選which。
3. As I was just getting familiar with this job， I had _C_ to ask my boss.
A many B most C much D more
當(dāng)many沒有修飾任何其他詞而單獨(dú)出現(xiàn)時表示很多人。 much在這里相當(dāng)于many things。
4. _A_ quite recently， most mothers in Britain did not take paid work outside the home.
A Until B Before C From D Since
until recently 直到最近; not surprisingly 一點(diǎn)也不奇怪。
5. In some countries， _D_ is called “equality” [平等] does not really mean equal rights for all people.
A which B one C that D what
that可以引導(dǎo)主語從句，但只做引導(dǎo)詞而不充當(dāng)任何成分。