2017托福從屬連詞語法及真題解析

　　導語：復合句是TOEEL考題的基本句子結(jié)構(gòu)，因而連接主句和從句的連接詞就成為重要的命題焦點。下面YJBYS小編解析從屬連詞語法及真題，歡迎參考!

　　TOEEL�？嫉膹膶龠B詞分三類：

　　(1)關(guān)系代詞( that, which ,what who. Whose)

　　(2) 關(guān)系副詞(where when why how)

　　(3) 狀語從句連接詞 (where, when, if, though, because…)

　　有關(guān)從屬連詞的試題大部分集中在Structure (1-15題中) 掌握命題規(guī)律，這類題目并不復雜。

　　1. 主句與從句之間必須有從屬連詞

　　全真例題分析

　　(1)The spiral threads of a spider*s web have a sticky substance on them ------- insects.

　　(A) traps

　　(B) trap its

　　(C) which traps

　　(D) which it traps

　　[答案] C 定語從句關(guān)系代詞which引導從句，且在從句中作主語。

　　(2)Angiosperms inhabit relatively diverse environments and may be found ------- higher plants can survive.

　　(A) there

　　(B) wherever

　　(C) somewhere

　　(D) then

　　[答案] B 空格前后為兩個完整的句子，這里應(yīng)填入連接詞聯(lián)系主從兩句。四個選擇只有wherever是連詞，引導地點狀語從句。

　　(3)Duke Wellington was a composer. Conductor, and pianist ------ ranked as one of the greatest of all jazz figures.

　　(A) him

　　(B) although

　　(C) or

　　(D) who

　　[答案] D 關(guān)系代詞who引導定語從句，并作從句的主語。

　　(4)-------. Some of the Earth*s interior heat escapes to the surface.

　　(A) A volcano erupts

　　(B) A volcano whether erupts

　　(C) A volcano erupts it

　　(D) If a volcano erupts

　　[答案] D 從屬連詞引導條件狀語從句。

　　2. 關(guān)系代詞 who與which混淆錯用

　　解題要點：在written Expression (16-40題)中的四個選擇答案中出現(xiàn)who 或者which，應(yīng)確認它所指代的是人還是物。

　　全直例題分析

　　(1)Fossil remains indicate that squidlike creatures called belemnites swam in the sea who covered the North American continent 70 million years ago.

　　[答案] C 關(guān)系代詞who指代的是sea，因此應(yīng)用指物的which或that。

　　(2)Vaccines for some rare diseases are given only to persons which risk exposure to the disease.

　　[答案] B 關(guān)系代詞which指代前面的'persons，應(yīng)改為人稱關(guān)系代詞who。

　　(3)Anne Elizabeth McDowell is best remembered for a weekly journal, the Woman*s Advocate, who she launched in January 1855.

　　[答案] D 關(guān)系代詞who指代雜志the woman*s Advocate,故應(yīng)改為which。

　　(4) The attorney general of the United States advises the President on any questions of law who may arise in the conduct of administrative affairs.

　　[答案] B 關(guān)系代詞who指代前文的questions of law，故應(yīng)改為which或that。

　　3. 介詞+關(guān)系代詞which結(jié)構(gòu)

　　解題要點 介詞+which作用相當于一個關(guān)系副詞，在從句作狀語。可表示時間(=when) ,地點(= where) ，原因(=why)等等。

　　全真例題分析

　　(1) In reorganizing the curriculum of Mt. Holyoke College in the late 1800*s Elizabeth Mead laid the foundation ------- the modern college rests.

　　(A) is which

　　(B) on which

　　(C) which is on

　　(D) on it

　　[答案] B on which 指代on the foundation ，作用相當于一個表示地點的關(guān)系副詞。

　　(2) A circuit may be defined as a closed path ------- electricity can How.

　　(A) through it

　　(B) through which

　　(C) that is through

　　(D) there goes through

　　[答案] B through which 指代through the circuit, 作用相當于一個關(guān)系副詞，而介詞through才能準確地表達句子的含義。

　　(3) The extent of the harmful effect of locoweeds on animals depends on the soil ------- the plants grow.

　　(A) which

　　(B) which in

　　(C) in which

　　(D) in (90.5)

　　[答案] C in which = where

　　(4) Adhesives, such as glue, tape and gum, vary with the purpose ------- intended.

　　(A) they were for

　　(B) for they were

　　(C) which were they

　　(D) for which they were

　　[答案] D for which指代for the purpose。

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