1. There is a big dog_______to a fence outside the house.
A. tying B. tied C. to tie D. ties
【答案】B
【解析】
【詳解】考查定語(yǔ)從句。句意:有一只狗栓在房子外的籬笆上。該句屬于定語(yǔ)從句省略,補(bǔ)充完整為:There is a big dog(which is)tied to a fence outside the house。所以用過(guò)去分詞作定語(yǔ),故選B
2. ________ and see how long you can stay underwater.
A. Let off steam B. Take a deep breath
C. Pull your weight D. Rise to your feet
【答案】B
【解析】
【詳解】考查動(dòng)詞短語(yǔ)詞義辨析。句意:深呼吸,看看你能在水下呆多久。A.Let off steam發(fā)泄;B.Take a deep breath深呼吸;C.Pull your weight盡心盡力;D.Rise to your feet站起來(lái)。根據(jù)“ how long you can stay underwater”可知,深呼吸,看看你能在水下呆多久。故選B項(xiàng)。