2015年托福考試模擬題匯編
1. Chromosomes are regarded today as the major carriers of genetic material， _________ of DNA and various types of protein.
A. consisting
B. as to consist
C. consist
D. which consisting
答案：A
分析：分詞作狀語。如果用consist的話，應(yīng)該用個(gè)conj.后面加個(gè)完整的句子。
參考譯文：染色體現(xiàn)今被認(rèn)為是主要的遺傳物質(zhì)攜帶者，這些遺傳物質(zhì)由DNA和各種各樣的蛋白質(zhì)組成。
2. The leopard seal is the only pinniped _________ preys on penguins and other seals.
A. that normally
B. of which it normally
C. normally
D. that it normally
答案：A
分析：句中出現(xiàn)is和preys兩個(gè)謂語動詞，一定是個(gè)復(fù)合句;用that引導(dǎo)定語從句，pinniped為先行詞，that后為不完整句。
參考譯文：美洲虎海豹是僅有的捕食企鵝和其他海豹的鰭足類動物。
3 _________ “nova” means new， novas are actually stars that have existed for a long time and suddenly flare into brilliance.
A. That
B. Why
C. Although
D. It is
答案：C
分析：空格后有2個(gè)完整句，空格處需要一個(gè)conj.
參考譯文：盡管nova意味著新的，但其實(shí)新星們是存在了很久而突然閃耀出光輝的恒星。
4. Because Mars is farther from the Sun than _________， Mars takes longer to complete a revolution.
A. Earth is
B. is from Earth
C. what is Earth
D. is it Earth
答案：A
分析：比較結(jié)構(gòu)的對稱性：Mars is farther …… than Earth is，is后省略了from the Sun
參考譯文：因?yàn)榛鹦潜鹊厍螂x太陽要遠(yuǎn)，火星繞太陽轉(zhuǎn)一圈的時(shí)間要比地球長。
5. A social system is _________ of social relations that draws the behavior of its members toward the core values of the group.
A. a complex network
B. how a complex network
C. a complex network and
D. a network that is complex
答案：A
分析：缺賓語。B中的從句只有主語，句子不完整，錯(cuò);C中and作為連詞，后面缺謂語，錯(cuò);D錯(cuò)，因?yàn)閛f前應(yīng)該為名詞。
參考譯文：社會系統(tǒng)就是一個(gè)社會關(guān)系的復(fù)雜網(wǎng)絡(luò)，這個(gè)網(wǎng)絡(luò)里把成員的行為方式向核心價(jià)值觀靠攏。
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