Fortunately, tougher rules are expected to 30 effect in July 2011.
答案：(D) take
【句型】take effect 字詞搭配「生效」，表示更嚴格的規定預計在2011年7月「生效」；do／become／set 都不能這樣搭配effect構成「生效」的意思。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個選項都是最常見的動詞，中文「生效」在英文裡要配哪一個，中文完全幫不上忙。這一型只能靠有沒有把整組記起來。
四個選項都是動詞，可見這一格考的是與 effect 的搭配。整句是 tougher rules are expected to ___ effect in July 2011（更嚴格的規定預計於 2011 年七月生效）。表示規定或法律開始施行，固定說法是 take effect（生效）。同一個意思還有幾種說法可以一起記：come into effect、go into effect、be put into effect（被付諸實行）。注意 effect 與 affect 也常一起考：effect 多半當名詞「影響、效果」（have an effect on 對……有影響）；affect 是動詞「影響」（Smoking affects your health.）。
do、become、set：三個都是高頻動詞，但都不與 effect 組成「生效」這個意思。（set 另有 set an example 樹立榜樣、set a goal 設定目標等組合，但不接 effect。）
take effect（生效）、come into effect（開始生效）、be put into effect（付諸實行）、have an effect on（對……有影響）、tougher rules（更嚴格的規定）、prevent sth from V-ing（防止……發生）。
Over the years, the Great Barrier Reef, off Australia's east coast, has grown to be 1,240 miles long. 26 up of 2,900 connected reefs, the area is home to thousands of plant and animal species. Much of the reef system is protected, 27 conservationists have long worried that not enough was being done to safeguard the area.
On April 3, 2010, their concerns came true. A cargo ship, Shen Neng 1, left Australia for China, carrying 65,000 tons of coal. Five hours into its 28 , the vessel strayed from its shipping lane. It plowed through a protected reef, destroying everything in its path. The damage covered an area as large as five football fields.
With more and more ships 29 the Great Barrier Reef, experts fear an even bigger accident is bound to happen. Fortunately, tougher rules are expected to 30 effect in July 2011. There are high hopes that these rules will prevent similar accidents from happening.