题目内容
The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.
| A．to be caused | B．to have caused | C．being caused | D．causing |
A
解析试题分析：句意：流感被认为是由在人类鼻腔和喉腔细胞内繁殖的病毒引起的。名词+be+believed/said/reported+不定式”相当于“It is believed/said/reported that…”，可以看作是一个句型。flu与cause之间是一种动宾关系，所以应该用动词不定式的被动式，选A.
考点：考查非谓语动词。
快乐小博士巩固与提高系列答案in four different countries, Jessie is a typical third culture kid, the term of which refers to children who spend a period of time in one or more cultures．
| A．Bring up | B．Having brought up |
| C．Bringing up | D．Brought up |
After the earthquake，the poor girl was found ________under the ruins of a church.
| A．burying | B．to be buried | C．buried | D．being buried |
It is requested that the reporter ____ to blame for the wrong report.
| A．referring to | B．referring to as | C．referred to be | D．referred to being |
Nearly half a million people are believed _________ their homes in the past months as a result of the disaster.
| A．to leave | B．to have left | C．to be leaving | D．to be left |
With the door ___________ on, the thief’s heart __________ faster.
| A．knocked, beat | B．being knocked, beat |
| C．being knocked, hit | D．beat, hit |
—The leaders are supposed to care about the sufferings of the people.
—Contrary to that, some of them act with their eyes _______ to the reality.
| A．closing | B．closed | C．to close | D．being closed |
______ from heart disease for years, Andy has to take some medicine with her wherever she goes.
| A．To suffer | B．Suffered | C．Having suffered | D．Being suffered |
Our school, _____ in 1943, will celebrate its 70th anniversary this year.
| A．founded | B．founding | C．to be founded | D．was founded |