5 第三點(diǎn)中動(dòng)詞相應(yīng)的名詞形式 + that引導(dǎo)從句，該從句同樣要用虛擬語(yǔ)氣，
謂語(yǔ)動(dòng)詞形式為：(should)+ 動(dòng)詞原形。
經(jīng)常用于這種結(jié)構(gòu)的詞有：suggestion， advice， proposal， recommendation， motion.
6 以下一些表達(dá)方式所在的句子一定要用虛擬語(yǔ)氣。
or(表示否則)， otherwise， unless， but for(若不是，若非)
當(dāng)遇到含有以上四個(gè)表達(dá)方式的句子時(shí)，先要判斷該句是表示與現(xiàn)在、過去、還是將來(lái)事實(shí)相反，然后依照相應(yīng)的虛擬語(yǔ)氣規(guī)則用法的形式來(lái)確定句子結(jié)構(gòu)。
含有下面三個(gè)表達(dá)方式的句子體現(xiàn)虛擬語(yǔ)氣的形式是固定的：
lest(以免，防備)， for fear that(惟恐)， on condition that(在。。條件下)
它們后面句子的謂語(yǔ)動(dòng)詞的形式都是：(should)+ 動(dòng)詞原形。
7 it is time 是。。。的時(shí)候了。
這個(gè)結(jié)構(gòu)有以下兩種變形形式，所用虛擬語(yǔ)氣形式都一樣：it is high time / it is about time.
這三個(gè)結(jié)構(gòu)后面加的句子謂語(yǔ)動(dòng)詞都用一般過去時(shí)來(lái)體現(xiàn)虛擬語(yǔ)氣。
8 注意以下兩種情況下should + 動(dòng)詞原形中should不能省略。
這里should表示一種語(yǔ)氣，經(jīng)常被翻譯成“竟然”。
a. 四個(gè)動(dòng)詞：think， believe， expect， suspect.
它們的否定或者疑問形式后面加句子，句子謂語(yǔ)動(dòng)詞用：should + 動(dòng)詞原形，should不能省略。
I don’t believe that he should be cheated. 我不相信他也會(huì)被騙。
b. it is a pity， it is a shame 真遺憾，it is strange 真怪
以上三個(gè)結(jié)構(gòu)后面加的句子謂語(yǔ)動(dòng)詞用：should + 動(dòng)詞原形，should不能省略。
錯(cuò)綜時(shí)態(tài)的虛擬語(yǔ)氣
錯(cuò)綜時(shí)態(tài)的虛擬語(yǔ)氣即指主句和從句在表達(dá)是與什么時(shí)態(tài)的事實(shí)相反上并不一致(比如主句要表達(dá)與現(xiàn)在事實(shí)相反而從句要表達(dá)與過去事實(shí)相反)，這種情況要采用“對(duì)號(hào)入座”的方法來(lái)處理，即主從句結(jié)構(gòu)分別采用與其表達(dá)時(shí)態(tài)對(duì)應(yīng)的結(jié)構(gòu)。
60. If I hadn’t stood under the ladder to catch you when you fell， you _A_ now.
A wouldn’t be smiling B couldn’t have smiled C won’t smile D didn’t smile
2. If you had studied the problem carefully yesterday， _C_.
A you won’t find any difficulty now B you would not have found any difficulty now
C you would not find any difficulty now D you have not found any difficulty now
3. He would be studying at the university now if he _C_ the entrance examination.
A passed B have passed C had passed D should have passed
16. It is a shame that he _B_ that poor little girl!
A deceived B should deceive C deceive D deceiving
18. Mrs. bliss kept the door and the windows shut lest the noise outside _D_ her son’s sleep. [lest(以免，防備) 后面句子的謂語(yǔ)動(dòng)詞的形式都是：(should)+ 動(dòng)詞原形]
A would interfere with B had interfered with
C interfered with D should interfere with
謂語(yǔ)動(dòng)詞形式為：(should)+ 動(dòng)詞原形。
經(jīng)常用于這種結(jié)構(gòu)的詞有：suggestion， advice， proposal， recommendation， motion.
6 以下一些表達(dá)方式所在的句子一定要用虛擬語(yǔ)氣。
or(表示否則)， otherwise， unless， but for(若不是，若非)
當(dāng)遇到含有以上四個(gè)表達(dá)方式的句子時(shí)，先要判斷該句是表示與現(xiàn)在、過去、還是將來(lái)事實(shí)相反，然后依照相應(yīng)的虛擬語(yǔ)氣規(guī)則用法的形式來(lái)確定句子結(jié)構(gòu)。
含有下面三個(gè)表達(dá)方式的句子體現(xiàn)虛擬語(yǔ)氣的形式是固定的：
lest(以免，防備)， for fear that(惟恐)， on condition that(在。。條件下)
它們后面句子的謂語(yǔ)動(dòng)詞的形式都是：(should)+ 動(dòng)詞原形。
7 it is time 是。。。的時(shí)候了。
這個(gè)結(jié)構(gòu)有以下兩種變形形式，所用虛擬語(yǔ)氣形式都一樣：it is high time / it is about time.
這三個(gè)結(jié)構(gòu)后面加的句子謂語(yǔ)動(dòng)詞都用一般過去時(shí)來(lái)體現(xiàn)虛擬語(yǔ)氣。
8 注意以下兩種情況下should + 動(dòng)詞原形中should不能省略。
這里should表示一種語(yǔ)氣，經(jīng)常被翻譯成“竟然”。
a. 四個(gè)動(dòng)詞：think， believe， expect， suspect.
它們的否定或者疑問形式后面加句子，句子謂語(yǔ)動(dòng)詞用：should + 動(dòng)詞原形，should不能省略。
I don’t believe that he should be cheated. 我不相信他也會(huì)被騙。
b. it is a pity， it is a shame 真遺憾，it is strange 真怪
以上三個(gè)結(jié)構(gòu)后面加的句子謂語(yǔ)動(dòng)詞用：should + 動(dòng)詞原形，should不能省略。
錯(cuò)綜時(shí)態(tài)的虛擬語(yǔ)氣
錯(cuò)綜時(shí)態(tài)的虛擬語(yǔ)氣即指主句和從句在表達(dá)是與什么時(shí)態(tài)的事實(shí)相反上并不一致(比如主句要表達(dá)與現(xiàn)在事實(shí)相反而從句要表達(dá)與過去事實(shí)相反)，這種情況要采用“對(duì)號(hào)入座”的方法來(lái)處理，即主從句結(jié)構(gòu)分別采用與其表達(dá)時(shí)態(tài)對(duì)應(yīng)的結(jié)構(gòu)。
60. If I hadn’t stood under the ladder to catch you when you fell， you _A_ now.
A wouldn’t be smiling B couldn’t have smiled C won’t smile D didn’t smile
2. If you had studied the problem carefully yesterday， _C_.
A you won’t find any difficulty now B you would not have found any difficulty now
C you would not find any difficulty now D you have not found any difficulty now
3. He would be studying at the university now if he _C_ the entrance examination.
A passed B have passed C had passed D should have passed
16. It is a shame that he _B_ that poor little girl!
A deceived B should deceive C deceive D deceiving
18. Mrs. bliss kept the door and the windows shut lest the noise outside _D_ her son’s sleep. [lest(以免，防備) 后面句子的謂語(yǔ)動(dòng)詞的形式都是：(should)+ 動(dòng)詞原形]
A would interfere with B had interfered with
C interfered with D should interfere with