1、My suggestion is more attention should be attached to the issue of youth drug abuse.
*is是系動詞,后跟表語從句,that引導(dǎo)表語從句時不能省略,這里少了that.
*主語是suggestion,advice等表示建議,命令的詞從句應(yīng)當(dāng)用虛擬語氣,并且should要省略.
2、People think developing space research well spend a huge number of money.
*spend表示花費時間或金錢時主語應(yīng)當(dāng)是支付者,是人,cost的主語才是物,這里是說發(fā)展太空研究會花費大量金錢.主語是物,應(yīng)該改成cost.（will打錯咯!）
*a large/huge/great number of只能修飾可數(shù)名詞,money不可數(shù),所以錯了.改成huge amounts of吧.
3、Now people go abroad becomes very easy.
*這句句子有兩個動詞,肯定不對,become是真正的動詞,句子意思是現(xiàn)在人們出國變的很容易.要不然就把become前面的部分變成主語從句,用that引導(dǎo),That people go abroad now becomes very easy.要不然就把它變成動名詞短語,就可以做主語了.Now people's going abroad becomes very easy.
4、When one is over 70 years old,he is very dangerous if left alone at home.
*當(dāng)人超過70歲的時候,一個人獨自在家是很危險的.錯在he is very dangerous,他不是怪獸啊,怎么能說他很危險呢?所以應(yīng)該改成it is very dangerous if he is left alone at home.it是形式主語,真正的主語是if he ...并且這里if從句當(dāng)中的he不要省略,否則從句的主語都不知道到哪里去找拉~.
回答完畢,不懂再問^^