8. some (insects) (hear) ultrasonic sounds (more than) two octaves (than higher) humans can.
選d(比較級(jí)語(yǔ)序) ，比較級(jí)是先出現(xiàn)比較再出現(xiàn)than。這類(lèi)的題也曾經(jīng)出現(xiàn)過(guò)好幾次。不難，但要有個(gè)個(gè)印象。
9. _____ important development of the neolithic age was not in the manufacture of stone tools but in the production of food.
(a) the most
(b) most
(c) most of
(d) of the most
選a。was說(shuō)明前面是單數(shù)。只能the most來(lái)說(shuō)明它是級(jí)
10.the first native americans (to occupy) (what is) now the southwestern united states (were) the big-game hunters, (which) appeared about 10,000 b.c.
which->who(who,which的混用) 。這又是托福中時(shí)不時(shí)就會(huì)出現(xiàn)一次的考點(diǎn)。還是那句話，對(duì)考點(diǎn)的敏感決定你的速度和正確率。
11. {in} plane geometry,the sum of (the internal) angles of (any )triangle (has) always equal to 180 degrees.
d.has->is ，be equal to。
12.(on) steep hillsides, tree roots bind to (soil) that might (otherwise) be washed away (if) heavy rains.
if--->when ，if后面要跟完整句，d顯然錯(cuò)了。而when則可以省略與前句重復(fù)的主語(yǔ)。
14.in geometry, an ellipse may be defined as the locus of all points ------ ----- distances from two fixed points is constant.
a) which as the sum of
b)of the sum which
c) whose sum of whose
d) whose sum that the
選a，有人認(rèn)為那是選d。我個(gè)人認(rèn)為，d從語(yǔ)法上講有點(diǎn)問(wèn)題。后面的that做什么？distances又做什么？要是sum of the還說(shuō)得過(guò)去但從語(yǔ)義上理解只能是a。我們知道，橢圓上的點(diǎn)到兩個(gè)焦點(diǎn)距離之和為定量，a就是表達(dá)的這個(gè)意思。如果是c(sum of),表達(dá)的意思是所有點(diǎn)到兩焦點(diǎn)距離之和為衡量，這顯然是不對(duì)的,a的表達(dá)方式不大合乎我們的習(xí)慣，請(qǐng)大家自己記一下。as后面表示此事物的性質(zhì)
15. although (based it on) feudal models, the colony of pennsylvania (developed) a (reputation) for a (progressive political) and social outlook.
選a。這里我們討論一下d，這里progressive是修飾outlook的，和 political and social作為整體并列，多個(gè)形容詞修飾同一個(gè)名詞形容詞間不需要逗號(hào)或and下面是rinehart關(guān)于這個(gè)問(wèn)題的講解：political and social，是因?yàn)閜olitical、social之間是并列的一個(gè)名詞是可以同時(shí)被多個(gè)形容詞修飾的a tall intelligent young american professor不可能寫(xiě)成a tall and intelligent and young and american professor 。
選d(比較級(jí)語(yǔ)序) ，比較級(jí)是先出現(xiàn)比較再出現(xiàn)than。這類(lèi)的題也曾經(jīng)出現(xiàn)過(guò)好幾次。不難，但要有個(gè)個(gè)印象。
9. _____ important development of the neolithic age was not in the manufacture of stone tools but in the production of food.
(a) the most
(b) most
(c) most of
(d) of the most
選a。was說(shuō)明前面是單數(shù)。只能the most來(lái)說(shuō)明它是級(jí)
10.the first native americans (to occupy) (what is) now the southwestern united states (were) the big-game hunters, (which) appeared about 10,000 b.c.
which->who(who,which的混用) 。這又是托福中時(shí)不時(shí)就會(huì)出現(xiàn)一次的考點(diǎn)。還是那句話，對(duì)考點(diǎn)的敏感決定你的速度和正確率。
11. {in} plane geometry,the sum of (the internal) angles of (any )triangle (has) always equal to 180 degrees.
d.has->is ，be equal to。
12.(on) steep hillsides, tree roots bind to (soil) that might (otherwise) be washed away (if) heavy rains.
if--->when ，if后面要跟完整句，d顯然錯(cuò)了。而when則可以省略與前句重復(fù)的主語(yǔ)。
14.in geometry, an ellipse may be defined as the locus of all points ------ ----- distances from two fixed points is constant.
a) which as the sum of
b)of the sum which
c) whose sum of whose
d) whose sum that the
選a，有人認(rèn)為那是選d。我個(gè)人認(rèn)為，d從語(yǔ)法上講有點(diǎn)問(wèn)題。后面的that做什么？distances又做什么？要是sum of the還說(shuō)得過(guò)去但從語(yǔ)義上理解只能是a。我們知道，橢圓上的點(diǎn)到兩個(gè)焦點(diǎn)距離之和為定量，a就是表達(dá)的這個(gè)意思。如果是c(sum of),表達(dá)的意思是所有點(diǎn)到兩焦點(diǎn)距離之和為衡量，這顯然是不對(duì)的,a的表達(dá)方式不大合乎我們的習(xí)慣，請(qǐng)大家自己記一下。as后面表示此事物的性質(zhì)
15. although (based it on) feudal models, the colony of pennsylvania (developed) a (reputation) for a (progressive political) and social outlook.
選a。這里我們討論一下d，這里progressive是修飾outlook的，和 political and social作為整體并列，多個(gè)形容詞修飾同一個(gè)名詞形容詞間不需要逗號(hào)或and下面是rinehart關(guān)于這個(gè)問(wèn)題的講解：political and social，是因?yàn)閜olitical、social之間是并列的一個(gè)名詞是可以同時(shí)被多個(gè)形容詞修飾的a tall intelligent young american professor不可能寫(xiě)成a tall and intelligent and young and american professor 。