求大神解答OG上几道SC的迷惑

hh647400

1. According to some analysts, the gains in the stock market reflect growing confidence that the economy will avoid the recession that many had feared earlier in the year and instead come in for a "soft landing," followed by a gradual increase in business activity.

（A) that the economy will avoid the recession that many had feared earlier in the year and instead come

请问这里为什么用had feared？

2.Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit, which thereby activates the animated functions of the piece.

（D)exhibit and thereby activate

请问这里的activate的主语是什么？

3. In an effort to reduce their inventories, Italian vintners have cut prices; their wines have been priced to sell, and they are.

(C) are priced to sell, and they do.

这句做的云里雾里的，请问they do在这里是想表达什么意思呢？

hh647400

lululuna 发表于 2015-7-5 21:42
1.在manhattan sc 上看到的是说

early in the year 过去时；earlier in the year过去完成时

所以相当于省略了to是吧~非常非常感谢答疑~

lululuna

1.在manhattan sc 上看到的是说

Past Perfect: The Earlier Action
If two actions in a sentence occurred at different times in the past, we often use the Past Perfect tense for
the earlier action and Simple Past for the later action. The Past Perfect is the “Past of the Past,” or the
“Past Twice Removed” from the present time.

early in the year 过去时；earlier in the year过去完成时
这题我也翻了一些论坛，目前我没有找到更好的解答，暂时采纳earlier in the year作为时间标记，用过去完成时

2）这题在第一个回复中表错了，sorry， 刚刚查了一下og
the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit and thereby activate the animated functions of the piece.

og给出的解释是

The agent of the action is clearly indicated by the grammatical structure of the sentence; visitors are encouraged to “touch” . . . and thereby  (to)   activate.

hh647400

lululuna 发表于 2015-7-5 18:07
1. According to some analysts, the gains in the stock market reflect growing confidence that the eco ...

第一题为什么不用过去式就好~the year还没有过去吧~
第二题没有activates的原因是thereby后面接原型吗？
非常感谢答疑！

lululuna

1. According to some analysts, the gains in the stock market reflect growing confidence that the economy will avoid the recession that many had feared earlier in the year and instead come in for a "soft landing," followed by a gradual increase in business activity.
（A) that the economy will avoid the recession that many had feared earlier in the year and instead come
请问这里为什么用had feared？
earlier in the year


2.Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit, which thereby activates the animated functions of the piece.
（D)exhibit and thereby activate
请问这里的activate的主语是什么？
the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit and thereby activate the animated functions of the piece.


3. In an effort to reduce their inventories, Italian vintners have cut prices; their wines have been priced to sell, and they are.
(C) are priced to sell, and they do.
这句做的云里雾里的，请问they do在这里是想表达什么意思呢？
do= sell