1.in the united states voters election representatives to the national legislature , which consists of the house of representatives and the snate.
election-〉elect(句子成分殘缺)
觀察主句，發(fā)現(xiàn)沒有謂語。 representatives因為有s，所以不是形容詞而是名詞。于是就出現(xiàn)了三個名詞voters election representatives無標(biāo)點相連的情況。這種情況很罕見，我們因該對它很敏感。思考一下就知道中間的名詞變?yōu)閯釉~，即election-〉 elect
2.her work in genetics won united states scientist barbara mcclintock ---- - in 1983.
(a) was the nobel prize
(b) the nobel prize was
(c) the nobel prize
(d) for the nobel prize
選c(雙賓語)
大家要注意雙賓語的考法。動詞后面直接接兩個名詞。而且看題干,已經(jīng)有一個謂語動詞,除非要填的部分中有從句引導(dǎo)詞,否則不可出現(xiàn)be動詞,排除a.b.而d又明顯錯誤,因 為nobel prize為b.m的雙賓語。
參考譯文：美國科學(xué)家b.m.在基因方面的研究工作為她自己贏得了1983年的諾貝爾獎.
這題可以多讀兩遍，有助于大家培養(yǎng)正確的語感。另外大家要格外注意像give這類的詞。可以說give sth to sb,也可以說give sb sth
3.--- usually thought to end in northern new mexico, the rocky mountains really extend southward to the frontier of mexico.
(a) despite
(b) to be
(c) while
(d) however
選c(連詞)
分析：a.despite 為介詞,后面要加名詞形式的東東,e.g.despite usually being thought to end in ...而這里的thought 是過去分詞,不是動名詞,所以不對。
b.to be 是目的狀語，不能表達出轉(zhuǎn)折關(guān)系
c.while可表轉(zhuǎn)折關(guān)系的conj.
d.however 是轉(zhuǎn)折連詞，不能用于引導(dǎo)狀語從句。
參考譯文：洛基山脈通常被認為是延伸到新墨西哥州的北邊,但它實際上一直向南延伸到了墨西哥的邊界。
4.complex spacecraft are characterized by a various of supporting systems,including communications,guidance and navigation,altitude control,and ,in some cases,life-support systems.
various-〉variety(介詞前為名詞)
這種題屬于簡單體，在考試中分?jǐn)?shù)不少，是一定要拿下來的。看到后面有介詞，前面的詞一定要是名詞性質(zhì)。在此單獨列出，希望大家在考場上對這個考點能有很強的條件反射。
5. during the pleistocene glacial periods _____ portions of the earth where plant and animal life flourished making it possible for people to subsist.
(a) the
(b) it was
(c) there were
(d) have there been
選c。分析句子成分后發(fā)現(xiàn)缺主謂。c顯然是正確的。d的倒裝很明顯錯。
6. nebraska has floods in some years, _____.
(a) in others drought
(b) droughts are others
(c) while other droughts
(d) others in drought
選a(省略的用法) 。省略是托福考試的一個難點。做這部分題需要我們對句子結(jié)構(gòu)和省略方式有很好地掌握此題，原句為：nebraska has floods in some years, and nebraska has drought in other years. 并列從句省略，然后時間狀語提前。
如果看不清省略方式，就抓住細節(jié)一樣能把題做出來?？吹絠n some years，肯定是in other years,省略year就是in others.因為后面缺主謂，省略的必定是主謂，句子結(jié)構(gòu)一定要跟前面一致，最多就是有倒裝而已。實在不行就往回推，自己把主謂加在后面看看哪個最合理最像前面一句就是答案
7. while studying the (chemistry) of (human body) , dr. rosalyn yalow won a nobel prize for the research she (conducted on) the (role) of hormones. （95/8 ）
選b(單數(shù)可數(shù)名詞不能*)。又是一個托福?？贾R點：單數(shù)可數(shù)名詞不能*。此處借此之后跟名詞，但名詞要不就要由數(shù)詞介詞限定，要不就要是復(fù)數(shù)。這個考點出現(xiàn)幾率奇多，大家一定要非常清楚才行。
election-〉elect(句子成分殘缺)
觀察主句，發(fā)現(xiàn)沒有謂語。 representatives因為有s，所以不是形容詞而是名詞。于是就出現(xiàn)了三個名詞voters election representatives無標(biāo)點相連的情況。這種情況很罕見，我們因該對它很敏感。思考一下就知道中間的名詞變?yōu)閯釉~，即election-〉 elect
2.her work in genetics won united states scientist barbara mcclintock ---- - in 1983.
(a) was the nobel prize
(b) the nobel prize was
(c) the nobel prize
(d) for the nobel prize
選c(雙賓語)
大家要注意雙賓語的考法。動詞后面直接接兩個名詞。而且看題干,已經(jīng)有一個謂語動詞,除非要填的部分中有從句引導(dǎo)詞,否則不可出現(xiàn)be動詞,排除a.b.而d又明顯錯誤,因 為nobel prize為b.m的雙賓語。
參考譯文：美國科學(xué)家b.m.在基因方面的研究工作為她自己贏得了1983年的諾貝爾獎.
這題可以多讀兩遍，有助于大家培養(yǎng)正確的語感。另外大家要格外注意像give這類的詞。可以說give sth to sb,也可以說give sb sth
3.--- usually thought to end in northern new mexico, the rocky mountains really extend southward to the frontier of mexico.
(a) despite
(b) to be
(c) while
(d) however
選c(連詞)
分析：a.despite 為介詞,后面要加名詞形式的東東,e.g.despite usually being thought to end in ...而這里的thought 是過去分詞,不是動名詞,所以不對。
b.to be 是目的狀語，不能表達出轉(zhuǎn)折關(guān)系
c.while可表轉(zhuǎn)折關(guān)系的conj.
d.however 是轉(zhuǎn)折連詞，不能用于引導(dǎo)狀語從句。
參考譯文：洛基山脈通常被認為是延伸到新墨西哥州的北邊,但它實際上一直向南延伸到了墨西哥的邊界。
4.complex spacecraft are characterized by a various of supporting systems,including communications,guidance and navigation,altitude control,and ,in some cases,life-support systems.
various-〉variety(介詞前為名詞)
這種題屬于簡單體，在考試中分?jǐn)?shù)不少，是一定要拿下來的。看到后面有介詞，前面的詞一定要是名詞性質(zhì)。在此單獨列出，希望大家在考場上對這個考點能有很強的條件反射。
5. during the pleistocene glacial periods _____ portions of the earth where plant and animal life flourished making it possible for people to subsist.
(a) the
(b) it was
(c) there were
(d) have there been
選c。分析句子成分后發(fā)現(xiàn)缺主謂。c顯然是正確的。d的倒裝很明顯錯。
6. nebraska has floods in some years, _____.
(a) in others drought
(b) droughts are others
(c) while other droughts
(d) others in drought
選a(省略的用法) 。省略是托福考試的一個難點。做這部分題需要我們對句子結(jié)構(gòu)和省略方式有很好地掌握此題，原句為：nebraska has floods in some years, and nebraska has drought in other years. 并列從句省略，然后時間狀語提前。
如果看不清省略方式，就抓住細節(jié)一樣能把題做出來?？吹絠n some years，肯定是in other years,省略year就是in others.因為后面缺主謂，省略的必定是主謂，句子結(jié)構(gòu)一定要跟前面一致，最多就是有倒裝而已。實在不行就往回推，自己把主謂加在后面看看哪個最合理最像前面一句就是答案
7. while studying the (chemistry) of (human body) , dr. rosalyn yalow won a nobel prize for the research she (conducted on) the (role) of hormones. （95/8 ）
選b(單數(shù)可數(shù)名詞不能*)。又是一個托福?？贾R點：單數(shù)可數(shù)名詞不能*。此處借此之后跟名詞，但名詞要不就要由數(shù)詞介詞限定，要不就要是復(fù)數(shù)。這個考點出現(xiàn)幾率奇多，大家一定要非常清楚才行。