【題目】-- Who told you the news?
-- I don't remember clearly. It ________ Mary.
-- It Mary. She doesn't know it.
A.may have been; can't be
B.can be; mustn't be
C.must have been; can't have been
D.may have been; may not be

【答案】A
【解析】句意：—誰告訴你的消息？—我記不清了，可能是Mary�！豢赡苁荕ary，她不知道這事。對過去事情的可能的猜測用may/might have+過去分詞；can表猜測時用于否定句和疑問句，must表示肯定的猜測，只用于肯定句。第一空意思是可能是Mary告訴我的這個消息，指對已發(fā)生的事情的猜測，用may have been；第二空表示否定，故用can't，因此選A。

練習冊系列答案
相關(guān)習題

科目：初中英語 來源： 題型：

【題目】完成句子

【1】這里是當?shù)赜霸赫谏嫌车挠捌畔ⅰ?/span>

Here is some information about ________________________________________.

【2】這部長達一小時的紀錄片近距離觀察了印度虎的生活。

This one-hour documentary _____________________________________in India.

【3】在2008年北京奧運會上，每當給獲勝者頒發(fā)獎牌時，頒獎音樂就會響起。

________________________________________at the Beijing 2008 Olympic Games, The award music was played.

【4】在構(gòu)架東西方橋梁時我們遇到了困難。

We had difficulty __________________________________________________.

【5】把時間花在觀看電視廣告上真是浪費時間。

It is really _____________________________________________TV ads.

【6】她被認為是這部電影中主角的最佳人選。

She was _______________________________________________in this film.

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】根據(jù)短文理解，從A、B、C、D四個選項中選擇正確答案填空。
Many students in China are learning English. Some of these students 1 small children. Some are teenagers(十幾歲的青少年). Others are adults(成年人). Some learn 2 school and others study by themselves. 3 people learn English language over the radio, 4 television, or in films. One must 5 hard to learn another language.
Why do all these people want to learn English? 6 is difficult to answer that question. Many boys and girls learn English at school because it is one of their 7. They study their own(自己的)language and maths and English.
Some people learn English 8 it is useful(有用的)for their work. Many people often learn English for their higher studies, because at college or university(大學)some of their books are 9 English. Other people learn English because they want 10 newspapers and magazines in English.
（1）A.is B.are C.be D.were
（2）A.at the B.from C.in D.at
（3）A.A little B.Little C.A few D.Few
（4）A.on B.in C.from D.by
（5）A.to work B.work C.works D.working
（6）A.That B.This C.It D.He
（7）A.books B.languages C.plans D.subjects
（8）A.because B.if C.when D.so
（9）A.with B.in C.use D.speak
（10）A.read B.read C.to read D.reading

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】把下列句子翻譯成英文。
（1）你周末過得怎樣？
（2）事實上， 它在20世紀80年代才變得重要起來。
（3）它正在變得更大、更繁華。

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】根據(jù)句意及漢語或首字母提示完成單詞。
（1）Most foreign visitors are very (興趣) in Chinese traditional culture.
（2）We went to the science (博物館) last weekend.
（3）She bought the skirt for ten yuan only. It's quite c.
（4）The school trip was very i.
（5）We took a s bus. So we arrived late.

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】閱讀下面短文，從每題所給的四個選項（A、B、C和D）中，選出最佳選項。

Lake Victoria is the largest lake in AfricA． It is also the second largest lake in the world． It is an important lake because it is one of the sources(源頭) for the longest river in the world, the Nile River．Lake Victoria provides a source of water, food, and power for several African countries．Lake Victoria is a big part of African life．

Unfortunately, Lake Victoria has a problem．It is shrinking．There are several power stations at Lake Victoria in Uganda． These are on the Nile River, and besides producing power, they keep the water of the lake at a certain level．For the past forty years, that level has been 11.9 meters．Over the last several years, the water level has dropped by about 2.5 meters．There seem to be several reasons for this drop．

One possible reason is drought(干旱)．Drought has been very bad in the area since 2000．Lake Victoria gets all of its water from rain, so the drought means less water in the lake．

However, some environmentalists believe that the real problem is the power plants(factories) on Lake Victoria． Uganda depends on those power plants for most of its power, and they made the power plants larger in 2000．Many people believe the power plants have been taking too much water off Lake Victoria． As a result, they have been asked to use less water until Lake Victoria goes back to its old level．

Whether the low water level is caused by drought or power plants, the result is the same．This is already a poor area of Africa, where many people live a really hard life．People, animals and plants around Lake Victoria will suffer even more from low water levels on the lake．Many people need Lake Victoria for fishing or growing food． Fish need the water to live, and animals need it for water．Plants around the lake will die without the water, and then more animals and people will suffer．Unless the lake fills soon, many people will suffer and die．

【1】Lake Victoria is __________．

A． an important lake in Africa.

B． the largest lake in the world．

C． the source of water, food and power for America．

D． the only source for the Nile River．

【2】What does the underlined sentence “It is shrinking” most probably mean?

A． It is becoming larger．

B． It is becoming more beautiful．

C． It is becoming smaller．

D． It is becoming more useful．

【3】The water level of Lake Victoria is now __________．

A． 2.5 meters

B． 11.9 meters

C． 14.4 meters

D． 9.4 meters

【4】Which of the following is NOT true according to the passage?

A． Rain water is the only source for the lake．

B． There has been little rain in the lake area since 2000．

C． The power plants in Uganda provide water for the lake．

D The power plants in Uganda were made larger in 2000．

【5】According to the passage, how can we solve the problems around Lake Victoria?

A． People must build more power plants．

B． More sources of water must be found．

C． Every country should offer some money to Africa．

D． All the people living in the area should move to another place．

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】根據(jù)所給提示，完成句子，每空一詞，含縮略詞。

【1】I don’t like cleaning up rooms because it’s boring． (對劃線部分提問)

______________________ you like cleaning up rooms?

【2】This is my new book．(改為同義句)

This new book ___________ _______ me.

【3】My mother has been a teacher for more than ten years．(改為一般疑問句)

___________ your mother ____________ a teacher for more than ten years?

【4】孩子依賴父母太多。 (完成譯句)

Children ____________ ____________ parents too much.

【5】為了在考試中取得好成績，他非常努力。（完成譯句）

He works hard __________ __________ he can get good grades.

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】語音：找出劃線部分發(fā)音不同的一個選項。
① A. with B. thank C. tooth D. father
② A. island B. think C. which D. bigger
③ A. seat B. east C. bread D. leave
④ A. apple B. answer C. black D. than

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】根據(jù)漢語意思完成英語句子。
（1）大明喜歡聽英語歌曲。Daming enjoys English songs.
（2）在我們學校后面有一棵古樹。 an old tree behind our school.
（3）我喜歡看猴子到處亂爬。I like to watch monkeys .
（4）在超市對面有一個大公園。There is a big park the supermarket.
（5）周末, 我在那里消遣時間。I there on weekends.

查看答案和解析>>

同步練習冊答案