PETS四級考試和其他級別考試一樣分筆試和口試兩部分。筆試部分有四種題型，即聽力、英語知識運用、閱讀理解和寫作;口試部分分為三節。以下是yjbys網小編整理的關於公共英語等級考試四級模擬習題，供大家備考。
1. Everyone is busy _____ the examination in the classroom.
A. with B. for C. on D. under
答案： A
解析： 注意幾個固定搭配： be busy (in) doing sth 忙於做…; be busy with sth 忙於…; busy oneself (in) doing sth 忙於做……; busy oneself with sth 忙於……。
2. I suppose you couldn’t let me borrow your car this evening, _____?
A. couldn’t I B. don’t I
C. could you D. will you
答案：C
解析：suppose 後面的從句中為否定式couldn’t，而主句為肯定式，這是否定後移的用法，後面的反意疑問句要根據從句而定，故反意疑問句用肯定式could you。
3. Smoking is not good _____ you because it can affect your health.
A. for B. at C. to D. on
答案： A
解析： be good for… 對…有好處; be good at… 善長於…。
4. Henry and Bady _____ to the parties at the Trade union every Saturday.
A. are used to go B. use to go
C. used to go D. were used to go
答案： C
解析： be used to do… 被用於做…; used to do… 過去常常…。
5. _____ , the inhabitants fled.
A. The city taken B. The city having been taken
C. Having taken the city D. The city being taken
答案： B
解析： 獨立主格結構。
6. In ancient China, people used to send smoke _____ to warn that the enemy were coming.
A. signs B. signals C. symbols D. marks
答案: B
解析: 這個題考四個名詞的比較, 其中: signs 跡象; signals 訊號; symbols 象徵; marks 分數.
7. The icy conditions made our travel dangerous. So _____ going by car we took the underground.
A. instead of B. in addition to
C. as well as D. at the cost of
答案: A
解析: instead of 代替,而不是; in addition to 除了…之外(還有); as well as 也(除…之外), 既…又…; at the cost of 以…為代價. 這道題橫線後面是動名詞形式,所以選項C和D首先排除.
8. Sometimes my job is boring, but _____ I enjoy it.
A. by contrast B. by nature
C. on the whole D. on the average
答案: C
解析: by contrast 與…相比,後面要跟with, by contrast with與…相比較; by nature 本性,生性; on the whole 總的來說; on the average 平均.
9. I’ll buy the clock _____ it costs.
A. what B. whatever C. where D. however
答案: B
解析: 不管花多少錢,我都買下這個鍾.
10. _____ on is well again, he can travel.
A. Now that B. So far C. Though D. Even if
答案: A
解析: Now that 既然; So far和現在完成時態連用.
11. Our students are free to study _____ interests them.
A. that B. whichever C. whatever D. anything
答案： C
解析： 我們的'學生有自由學習自已所感興趣的東西。
12. Mathematics _____ easy to learn.
A. is B. are C. can D. feels
答案：A
解析： 數學是很容易學習的。這裡注意這個單詞Mathematics，是一門學科，謂語要用單數形式。
13. It’s never _____ .
A. late enough to learn B. not late enough to learn
C. too late to learn D. so late as not learn
答案： C
解析：活到老，學到老。too……to…… 太……而不能……, 這是一個否定句式，注意句子中有一個never，否定含義，雙重否定，所以這個句子為肯定的語氣。
14. I don’t know whether he is still _____ in collecting coins. He used to be, but that was several years ago.
A. interested B. interesting
C. interest D. disinterested
答案：A
解析： 我不知道他是否還對收集古幣感興趣。他過去是這樣的，但這是幾年前了。短語be interested in doing… 對…感興趣。
15. The noise outside was _____.
A. too irritating that
B. so irritating so his speech was hardly audible
C. so irritating that his speech was hardly audible
D. so irritating enough that his speech was hardly audible
答案：C
解析：外面的嘈雜聲是如此地令人厭煩，以至於很難聽清他的演講。 So…that… 如此…以至於… ; audible聽得見的; irritating 讓人氣憤的，讓人厭煩的。
