注意中國學(xué)生容易搞錯的問題：
There isn't enough furniture in the room.(房間里家具不夠)
錯：There hasn't enough furniture in the room.
There is no doubt that smallpox has been wiped out in China.(毫無疑問，中國已消滅天花。)
錯：It is no doubt that smallpox has been wiped out in China.
There is ample evidence that AIDS is spreading quickly in Asia. (充分醫(yī)學(xué)全.在線m.f1411.cn證據(jù)表明，愛滋病正在亞洲迅速蔓延�！� 同位語從句)
錯：It is evidence that AIDS is spreading quickly in Asia. (可以： It is evident that AIDS is spreading quickly in Asia. - 主語從句)
(二)第二句型：主語 + 不及物動詞 (+ 其他成分)
在這個句型中主要注意及物動詞與不及物動詞的區(qū)分：不及物動詞 及物動詞
rise /rose / risen(升起) raise /raised / raised (提高)
arise / arose / arisen (from)(產(chǎn)生) arouse / aroused / aroused(喚起)
lie / lay / lain(躺下) lay / laid / laid(放下) arrive at(到達(dá)) reach(到達(dá))
wait for(等待) await(等待) remain(仍舊) maintain(保持，維修)
*上面所注僅為典型詞義，要根據(jù)句子判別醫(yī)學(xué) 全在.線提供www.med126.com其他意思。
此外，該句型常采用倒裝形式，注意辨別，主要是以下兩種情況：
1) 用here 或 there引導(dǎo)：Here comes the bus. (汽車來了。) / There rings the bell. (鈴響了。)
2) 在動詞 + 介詞短語的結(jié)構(gòu)中，往往將介詞短語提前：On the top of the hill stands a pretty little house.(山頂上有一座漂亮的小房子。)
(三)第三句型：主語 + 及物動詞 + 賓語
我們知道，名詞可以做主語和賓語，非謂語動詞 -ing和 to do也可以做主語和賓語，
作主語： Learning a foreign language is not easy.(學(xué)門外語并不容易。) To learn a foreign language is not easy. (= It is not easy to learn a foreign language.)
從語法角度講，上述兩個表達(dá)方式都可以。
但是，當(dāng)動詞處于賓語位置時，就不能這樣"隨心所欲"了，因為英語語法有以下幾個規(guī)定： 1)acknowledge / admit / appreciate / avoid / consider / contemplate / defer / deny / dislike / enjoy / escape / evade / excuse / facilitate / fancy / favor / feel like / finish / give up / cannot help / cannot stand / imagine / include / keep (on) / do not mind / miss / permit / practice / regret / resent / risk / suggest 等詞后面的動詞賓語必須用-ing 形式，重點和首先要掌握黑體字部分。由于這些次的詞義與解題關(guān)系不大，沒有給出具體詞義解釋。若需要，請學(xué)生自己查字典解決。
這是語法考試的一個重點，要對以上詞特別敏感，例如：
It is impossible to avoid ______ by the stormy weather.
A. being much affected
B. having much affected
C. to be much affected
D. to have been much affected
